QUANTUM CORP /DE/, 424B3, 1999-06-23

QUANTUM CORP /DE/
424B3, 1999-06-23
COMPUTER STORAGE DEVICES

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Filed pursuant to Rule 424(b)(3)
Registration No. 333-75133
Proxy Statement and Prospectus of

QUANTUM CORPORATION

Special Meeting of Stockholders to be
Held at 10 A.M., Local Time, on July 23, 1999

----------------

<TABLE>
<S> <C>
DLT & Storage Systems Group COMMON STOCK Hard Disk Drive Group COMMON STOCK
</TABLE>

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To Our Stockholders

You are invited to attend a special meeting of our stockholders, to be held
at our headquarters at 500 McCarthy Boulevard, Milpitas, California 95035.

At the special meeting, you will be asked to consider and adopt a tracking
stock proposal recommended by our board of directors. We propose to adopt an
amended and restated certificate of incorporation which would replace our
existing common stock with two new classes of tracking stock called DLT &
Storage Systems group stock and Hard Disk Drive group stock. DLT & Storage
Systems group stock is intended to reflect separately the performance of our
DLTtape(TM) and storage systems business. Hard Disk Drive group stock is
intended to reflect separately the performance of our hard disk drive business.

If stockholders approve the tracking stock proposal, each share of your
existing common stock will be changed into one share of DLT & Storage Systems
group stock and 0.5 of a share of Hard Disk Drive group stock. We expect to
effect the tracking stock proposal shortly following the special meeting and
expect the tracking stock proposal to be tax-free to you and us. We will seek
the listing of both the DLT & Storage Systems group stock and the Hard Disk
Drive group stock on the New York Stock Exchange.

At the special meeting, you will also be asked to consider and approve a
proposal to amend our employee stock purchase plan.

Our board of directors unanimously recommends that you vote in favor of the
tracking stock proposal and the proposal to amend our employee stock purchase
plan. This proxy statement and prospectus provides you with detailed
information about the proposals. We encourage you to read this entire document
carefully.

Michael A. Brown
Chairman of the Board
and Chief Executive Officer

The tracking stock proposal involves certain risks. Please read the "Risk
Factors" beginning on page 10.

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined
if this proxy statement and prospectus is truthful or complete. Any
representation to the contrary is a criminal offense.

This proxy statement and prospectus is dated June 16, 1999 and is first
being mailed to stockholders on June 23, 1999.
<PAGE>

HOW YOU CAN OBTAIN MORE INFORMATION

This proxy statement incorporates important business and financial
information that is not included in or delivered with this document. You
may request a copy of this information at no cost, by writing or
telephoning us at the following address:

Quantum Corporation
500 McCarthy Boulevard
Milpitas, California 95035
Attention: Investor Relations
Telephone: 1-408-324-7044

To obtain timely delivery, you must make this request no later than five
business days before July 23, 1999, the date of the special meeting.

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[QUANTUM LOGO APPEARS HERE]

Notice of Special Meeting
of Stockholders
to be Held on July 23, 1999

June 23, 1999

We hereby give notice that a special meeting of our stockholders will be
held at our headquarters at 500 McCarthy Boulevard, Milpitas, California. The
special meeting will begin at 10:00 a.m., local time, and will be held for the
following purposes and to transact any other business as may properly come
before the meeting or any adjournments of the meeting:

1. To consider and act upon a proposal to adopt an amended and restated
certificate of incorporation under which each outstanding share of our
existing common stock will be changed into one share of DLT & Storage
Systems group stock and 0.5 of a share of Hard Disk Drive group stock; and

2. To consider and act upon a proposal to adopt amendments to the
Quantum corporation employee stock purchase plan.

The attached proxy statement and prospectus contains information relating to
the two proposals.

Your board of directors has fixed the close of business on June 4, 1999 as
the record date to determine the stockholders entitled to notice of and to vote
at the special meeting. Only the stockholders of record at the close of
business on that date will be entitled to vote at the meeting. A list of those
stockholders will be available for inspection before or at the meeting. The
transfer books of Quantum will not be closed.

By order of the board of directors,

Richard L. Clemmer

Executive Vice President, Finance, Chief Financial Officer and
Secretary
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TABLE OF CONTENTS

<TABLE>
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Page
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<S> <C>
Questions and Answers About the Tracking Stock Proposal................... 1
Proxy Statement Summary................................................... 2
Quantum Corporation Selected Financial Information........................ 7
The DLT & Storage Systems Group Selected Financial Information............ 8
The Hard Disk Drive Group Selected Financial Information.................. 9
Risk Factors.............................................................. 10
Special Note Regarding Forward-Looking Statements......................... 19
Where You Can Find More Information....................................... 20
Information About the Special Meeting and Voting.......................... 20
Date, Time and Place of Meeting.......................................... 20
Record Date.............................................................. 20
Proposals to be Considered at the Meeting................................ 20
Vote Required to Approve the Proposals................................... 21
Quorum................................................................... 21
Procedure for Voting by Proxy............................................ 21
Proposal 1--The Tracking Stock Proposal................................... 21
Description of the Tracking Stock Proposal............................... 21
Background of and Reasons for the Tracking Stock Proposal................ 22
Recommendation of the Board of Directors................................. 24
Management and Allocation Policies....................................... 24
Dividend Policy.......................................................... 29
Description of DLT & Storage Systems group stock and Hard Disk Drive
group stock............................................................. 29
Restated Rights Agreement................................................ 38
Certain Anti-Takeover Provisions of Delaware Law and the Restated
Certificate of Incorporation, the By-laws and the Restated Rights
Agreement............................................................... 40
United States Federal Income Tax Considerations.......................... 41
New York Stock Exchange Listings......................................... 42
Exchange Procedures...................................................... 42
</TABLE>
<TABLE>
<CAPTION>
Page
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<S> <C>
Stock Transfer Agent and Registrar..................................... 42
Financial Advisors..................................................... 43
Effect on Existing Options and Convertible Notes....................... 43
No Dissenters' Rights.................................................. 43
Quantum Corporation--Management's Discussion and Analysis of Financial
Condition and Results of Operations.................................... 44
Business of the DLT & Storage Systems Group............................. 51
The DLT & Storage Systems Group--Management's Discussion and Analysis of
Financial Condition and Results of Operations.......................... 61
Business of the Hard Disk Drive Group................................... 69
The Hard Disk Drive Group--Management's Discussion and Analysis of
Financial Condition and Results of Operations.......................... 78
Proposal 2--Adoption of Amendments to the Quantum Corporation Employee
Stock Purchase Plan.................................................... 85
Price Range and Dividends on Existing Common Stock...................... 89
Information About Stockholder Proposals................................. 89
Expenses of Solicitation................................................ 89
Legal and Tax Opinions.................................................. 90
Experts................................................................. 90
Index to Financial Statements........................................... F-1
Quantum Corporation--
Report of Independent Auditors......................................... F-2
Independent Auditors' Report........................................... F-3
Financial Statements................................................... F-4
The DLT & Storage Systems Group--Independent Auditors' Report and
Financial Statements................................................... F-28
The Hard Disk Drive Group--Independent Auditors' Report and Financial
Statements............................................................. F-50
Annex I: Restated Certificate of Incorporation
Annex II: Amended Quantum Corporation Employee Stock Purchase Plan
</TABLE>
<PAGE>

QUESTIONS AND ANSWERS ABOUT THE TRACKING STOCK PROPOSAL

If you have any questions relating to the matters discussed in this
document, please call our Investor Relations Department at (408) 324-7044.

Q. Why am I receiving this proxy statement?

A. We are distributing this proxy statement and prospectus to you in connection
with a proposal to adopt an amended and restated certificate of
incorporation which would replace our existing common stock with two new
classes of tracking stock. We are also distributing this proxy statement in
connection with proposals to adopt amendments to our employee stock purchase
plan.

Q. What would be the new tracking stocks?

A. The new tracking stocks would be the DLT & Storage Systems group stock and
the Hard Disk Drive group stock. We refer to the DLT & Storage Systems group
stock and the Hard Disk Drive group stock together as the "tracking stocks."

. The DLT & Storage Systems group stock is intended to reflect the separate
performance of our DLTtape and storage systems business. We refer to this
business as the DLT & Storage Systems group.

. The Hard Disk Drive group stock is intended to reflect the separate
performance of our hard disk drive business. We refer to this business as
the Hard Disk Drive group.

Investors commonly refer to this type of stock as tracking stock, targeted
stock or letter stock, because the stock is intended to track or target the
separate performance of a group of assets or a division of a company.

Q. How will I benefit from the tracking stock proposal?

A. Following the issuance of the DLT & Storage Systems group stock and the Hard
Disk Drive group stock, you will be able to invest in either or both
tracking stocks depending upon your investment objectives.

Q. What kind of financial information will I receive in the future?

A. You will continue to receive consolidated financial information for Quantum
as a whole. In addition, you will receive separate operating results and
other business and financial information for both the DLT & Storage Systems
group and the Hard Disk Drive group.

Q. What will my existing shares represent if the tracking stock proposal is
implemented?

A. Each share of your existing common stock will be changed into one share of
DLT & Storage Systems group stock and 0.5 of a share of Hard Disk Drive
group stock. For example, if you own 101 shares of existing common stock,
you would receive 101 shares of DLT & Storage Systems group stock, 50 shares
of Hard Disk Drive group stock and cash in lieu of one-half share of Hard
Disk Drive group stock. The cash to be received would be equal to one-half
of the closing price of the Hard Disk Drive group stock on the date the
tracking stock proposal is implemented.

Q. Will the tracking stock proposal result in a change of control of Quantum?

A. No.

Q. Will the tracking stock proposal result in a spin-off?

A. No. This proposal will not result in a distribution or spin-off of our
assets or liabilities and will not affect ownership of our assets or
responsibility for our liabilities. Holders of DLT & Storage Systems group
stock and Hard Disk Drive group stock will continue to be stockholders of a
single company and subject to all risks associated with an investment in
Quantum and all of our businesses, assets and liabilities. The tracking
stocks do not represent ownership interests in either group and do not
entitle their holders to any special rights to receive specific assets of
either group.

Q. If I hold my shares through a broker, how do I vote on the tracking stock
proposal?

A. You should contact your broker directly to determine the procedures through
which you can vote on the tracking stock proposal.

Q. What are the consequences of my not voting on the tracking stock proposal?

A. Your failure to vote on the tracking stock proposal will have the same
effect as a vote against the proposal.

1
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PROXY STATEMENT SUMMARY

This summary, together with the "Questions and Answers About the Tracking
Stock Proposal" on the preceding page, highlights important selected
information from this document. To understand the tracking stock proposal fully
and for a more complete description of the legal terms of the tracking stock
proposal, you should read carefully this entire document and the documents we
have referred you to. We have included page references parenthetically to
direct you to a more complete description of the topics presented in this
summary.
Quantum

Our businesses are the DLT & Storage Systems group and the Hard Disk Drive
group. Our principal executive offices are located at 500 McCarthy Boulevard,
Milpitas, California 95035, and our telephone number is (408) 894-4000.

The DLT & Storage Systems Group (page 51)

The DLT & Storage Systems group designs, develops, manufactures, licenses
and markets DLTtape drives, DLTtape media cartridges and tape libraries which
are used to back-up large amounts of data stored on network servers. Digital
Linear Tape, or DLTtape, is the DLT & Storage Systems group's half-inch tape
technology that is the de facto industry standard for data back-up in the mid-
range network server market, which includes network servers priced between
$10,000 and $500,000. The DLT & Storage Systems group's DLTtape media
cartridges are manufactured primarily by licensed third party manufacturers.

Tape back-up is used as an efficient and cost-effective means to make back-
up and archive copies of large amounts of data often stored on network servers
which are high speed computers that allow many computer users to access shared
computer programs and data. Tape drives are devices that read and write data
typically stored on a network server's hard disk drive storage system to
magnetic tape that is stored on a reel housed within the media cartridges. Tape
drives provide relatively slower data access times when compared to hard disk
drives but are able to cost-effectively store larger quantities of data that
must be protected but infrequently accessed. Each tape drive reads and writes
data on multiple media cartridges to store data in the same way a video
cassette recorder is able to replay and record TV programs on multiple video
cassette tapes. Tape libraries are systems that allow for the automatic
functioning of multiple tape drives and media cartridges within a single
storage system.

According to International Data Corporation, the DLT & Storage Systems group
was the worldwide revenue leader for all categories of tape drives used for
data storage and back-up in calendar year 1997 and is projected to have been
the leader in calendar year 1998. According to Dataquest, DLTtape drives are
projected to have accounted for 24% of total tape drive market revenue in
calendar year 1998, up from 2% in calendar year 1994. The DLT & Storage Systems
group is also a leader in the tape library market for mid-range network
servers.

The DLT & Storage Systems group's acquisition of ATL Products, Inc. in
October 1998 allowed the DLT & Storage Systems group to become the first
provider of tape libraries that serve the entire tape library data storage
market from desktop computers to enterprise class computers. The DLT & Storage
Systems group also plans to enter the rapidly emerging market for network
attached storage appliances by offering products designed to meet the
requirements of workgroup computing environments where multiple computer users
access shared data files over a local area network. Network attached storage
appliances are storage devices which separately perform the storage function
for networks of computers.

The Hard Disk Drive Group (page 69)

2
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consumer electronics applications such as new TV recording devices. The Hard
Disk Drive group has been the leading volume supplier of hard disk drives for
the desktop market for each of the past six years.

The Hard Disk Drive group designs desktop hard disk drives to meet the
storage requirements of entry-level to high-performance desktop PCs in home and
business environments. The Hard Disk Drive group also designs high-end hard
disk drives to store data on large computing systems such as network servers.
These high-end hard disk drives are generally used for:

. dedicated sites that store large volumes of data;

. network servers such as those used for Internet and intranet services,
online transaction processing and enterprise wide applications;

. high-speed computers used for specialized engineering design software;
and

. computer systems incorporating a large number of shared hard disk drives.

The Special Meeting

Proposals to be Considered at the Meeting

You are asked to consider and vote upon the following proposals at the
special meeting:

. Proposal 1: The tracking stock proposal (page 21).

. Proposal 2: Adoption of amendments to the Quantum Corporation Employee
Stock Purchase Plan (page 85).

If either Proposal 1 or Proposal 2 is approved, we will implement it whether or
not the other proposal is approved.

Vote Required to Approve the Proposals (page 21)

The following stockholder votes are required for approval of the proposals:

. Proposal 1: The favorable vote of the holders of a majority of the
outstanding shares of our existing common stock.

. Proposal 2: The favorable vote of the holders of a majority of the shares
of our existing common stock represented in person or by proxy at the
special meeting.

Our directors and executive officers beneficially owned approximately 1.5%
of the outstanding shares of our existing common stock on June 4, 1999.

Comparison of Existing Common Stock with DLT & Storage Systems group stock and
Hard Disk Drive group stock (page 29)

We have described below a comparison of our existing common stock and the
DLT & Storage Systems group stock and Hard Disk Drive group stock. You should
keep in mind that you will remain stockholders of a single company. The DLT &
Storage Systems group and the Hard Disk Drive group will not be separate legal
entities. As a result, you will continue to be subject to all of the risks
associated with an investment in Quantum and all of our businesses, assets and
liabilities. Financial effects from one group that affect our consolidated
results of operations or financial condition could, if significant, affect the
results of operations or financial condition of the other group.

Dividends

Existing Common Stock. Historically, we have not paid dividends on our
existing common stock. Dividends are at the discretion of our board of
directors.

Tracking Stocks. We presently do not anticipate paying dividends on either
tracking stock. Dividends will be at the discretion of our board of directors.

Voting Rights

Existing Common Stock. Holders of existing common stock have one vote per
share.

Tracking Stocks. Holders of DLT & Storage Systems group stock will have one
vote per share. Holders of Hard Disk Drive group stock will have more than,
less than or exactly one vote per share depending on the relative market values
of the two tracking stocks.

The holders of the two tracking stocks will vote together as a single class
except for the limited class

3
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voting rights provided under Delaware law, by New York Stock Exchange rules or
as determined by our board of directors.

Rights on Sale of All or Substantially All Assets of a Group

Existing Common Stock. Holders of existing common stock have no special
rights triggered by a sale of all or substantially all of the assets of a
group.

Tracking Stocks. If we sell all or substantially all of the assets
attributed to a group, we must either:

. distribute an amount equal to the net proceeds of the sale, or

. convert each share of that group's tracking stock into a number of shares
of the other group's tracking stock at a 10% premium for the first five
years following the implementation of the tracking stock proposal and
without any premium after that five year period.

We will not be required to effect a distribution or conversion if we receive in
the sale primarily equity securities of the acquiror or its parent, and the
acquiror or its parent is or will be primarily engaged in one or more
businesses similar or complementary to the group whose assets are sold.

Conversion at Option of Quantum

Existing Common Stock. We do not have the option of converting shares of our
existing common stock into any other security of Quantum.

Tracking Stocks. We may convert either tracking stock into the other
tracking stock at our option:

. at a 10% premium for the first five years following the implementation of
the tracking stock proposal; and

. without any premium either after that five year period or if, at any
time, there are adverse U.S. federal income tax law developments.

Redemption in Exchange for Stock of Subsidiary

Existing Common Stock. We do not have the option of redeeming shares of our
existing common stock.

Tracking Stocks. Although we currently have no intention to do so, our board
of directors may in the future decide to spin-off one of the groups from
Quantum. In order to effect a spin-off, our board of directors has the power to
redeem the outstanding shares of that group's tracking stock in exchange for
shares of one or more of our wholly-owned subsidiaries then owning all of the
assets and liabilities of that group.

Liquidation

Existing Common Stock. Holders of existing common stock share assets
remaining for distribution to holders of common stock in equal amounts per
share of existing common stock.

Tracking Stocks. Holders of DLT & Storage Systems group stock and Hard Disk
Drive group stock will share assets remaining for distribution to holders of
common stock on a per share basis in proportion to the liquidation units per
share of the tracking stocks. Each share of DLT & Storage Systems group stock
will have one liquidation unit. Each share of Hard Disk Drive group stock will
have a number of liquidation units based on the relative market values of the
two tracking stocks. We will fix the number of liquidation units per share of
Hard Disk Drive group stock approximately two months after the implementation
of the tracking stock proposal, and we will not change that number without the
approval of the holders of the tracking stock adversely affected. For example,
if the average market value on the date of determination was $20 for the Hard
Disk Drive group stock and $40 for the DLT & Storage Systems group stock, each
share of Hard Disk Drive group stock would have 0.5 liquidation units. Assuming
160 million shares of DLT & Storage Systems group stock and 80 million shares
of Hard Disk Drive group stock were outstanding on the date of determination,
the holders of DLT & Storage Systems group stock would be entitled to 80% of
the assets remaining for distribution to common stockholders and the holders of
Hard Disk Drive group stock would be entitled to 20% of those assets.

4
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Risk Factors (page 10)

When evaluating the tracking stock proposal, you should be aware that there
are many risks, including those described under "Risk Factors."

Management and Allocation Policies (page 24)

We have established policies designed to accomplish the fundamental
objective of the tracking stock proposal, which is to highlight the separate
performance of each of the DLT & Storage Systems group and the Hard Disk Drive
group and to allow each group to focus on its own business strategy and
financial model. These policies establish guidelines to help us allocate debt,
corporate overhead, interest, taxes and other shared activities between the two
groups on an objective basis and to ensure that transactions between the DLT &
Storage Systems group and the Hard Disk Drive group are made on terms that
approximate those that could be obtained from unaffiliated third parties.

Our inter-group policies include:

. the centralized management of most financial activities;

. the allocation of indebtedness and preferred stock between groups or
entirely to one group;

. the accounting for transfers of cash or other property from one group to
the other group;

. access to our technology and know-how, other than products and services,
by the groups;

. the transfer of assets between groups at fair value, including sales of
products and services between groups on terms that would be available
from unaffiliated third parties in commercial transactions;

. the allocation of corporate opportunities in the best interests of
Quantum; and

. the requirement that groups not engage in each other's principal
businesses, except for joint transactions with each other and with third
parties, but permitting indirect competition in certain situations.

United States Federal Income Tax Considerations (page 41)

We have been advised by Ernst & Young LLP that no gain or loss will be
recognized by you for federal income tax purposes as a result of the tracking
stock proposal. However, the Internal Revenue Service could disagree. There are
no court decisions or other authorities bearing directly on transactions
similar to the tracking stock proposal. In addition, the Internal Revenue
Service has announced that it will not issue rulings on the characterization of
stock with characteristics similar to the DLT & Storage Systems group stock and
the Hard Disk Drive group stock. Therefore, the tax treatment of the tracking
stock proposal is subject to some uncertainty.

Clinton Administration Proposal

A recent proposal by the Clinton Administration would impose a corporate
level tax on the issuance of stock similar to the DLT & Storage Systems group
stock or the Hard Disk Drive group stock. If this proposal is enacted, we could
be subject to tax on an issuance of DLT & Storage Systems group stock or Hard
Disk Drive group stock after the date of enactment. If our stockholders approve
the tracking stock proposal, our board of directors currently intends to
implement the proposal, subject to further legislative developments relating to
the Clinton Administration tax proposal.

No Dissenters' Rights

You will not have dissenters' or appraisal rights under Delaware law if the
tracking stock proposal is implemented.

No Regulatory Approvals

No state or federal regulatory approvals are required for the tracking stock
proposal.

5
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Proposal 2--Adoption of Amendments to the Quantum Corporation Employee Stock
Purchase Plan (page 85)

This proposal relates to amendments to the Quantum Corporation Employee
Stock Purchase Plan which would:

. increase the number of shares available for issuance under the purchase
plan from 1,366,401 to 3,366,401; and

. add an automatic share replenishment provision to the purchase plan which
will increase the number of shares reserved under the purchase plan each
year beginning on April 1, 2000 and ending on and including April 1, 2005
by the lesser of:

(1) 5,000,000 shares;

(2) 2% of the outstanding common stock; or

(3) an amount determined by our board of directors.

The purpose of the proposed amendments to the purchase plan is to increase
the number of shares available for issuance under the purchase plan. Our board
of directors believes that the proposed amendments are in the best interests of
Quantum and our stockholders for the following reasons:

. our board of directors believes the purchase plan serves to incentivize
current employees and to align their interests with those of our
stockholders;

. our board of directors believes that the purchase plan is an important
element of our strategy to attract and retain qualified employees in a
competitive market;

. the automatic replenishment provision will provide the purchase plan with
additional shares and avoid any adverse accounting consequences from
running out of shares during an offering period; and

. without the proposed share increase, we will exhaust the shares available
for issuance under the purchase plan this year.

It the tracking stock proposal is approved by our stockholders, additional
features will be added to the purchase plan to reflect the special features of
the tracking stock, including:

. two pools of tracking stock reserved under the purchase plan, each with
automatic replenishment features, if this amendment is approved;

. a special mechanism for the purchase of shares from each pool so that
each participant purchases a proportionate number of shares of the Hard
Disk Drive group stock and the DLT & Storage Systems group stock; and

. a modified change of control provision to reflect the tracking stock
capital structure.

Under the purchase plan, our board of directors has the authority to adopt
these amendments related to the tracking stock proposal without stockholder
approval.

Recommendation of the Board of Directors

Your board of directors has carefully considered each of these proposals and
believes that the approval of these proposals by the stockholders is advisable
and in the best interests of our company and our stockholders. Your board of
directors unanimously recommends that you approve each of these proposals.

6
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QUANTUM CORPORATION SELECTED FINANCIAL INFORMATION

This summary of financial information of Quantum for fiscal years 1995 to
1999 should be read along with Quantum's audited consolidated financial
statements contained in this proxy statement. The summarized financial
information, other than the statement of operations data for fiscal years 1995
and 1996 and the balance sheet data at March 31, 1995, 1996 and 1997, was taken
from these financial statements.

A number of items affect the comparability of this information:

. Through May 1997, we consolidated the results of a recording heads
business acquired in October 1994. Recording heads are disk drive
components that read and write data to the magnetic disks in a hard disk
drive. The recording heads business generated losses from operations of
$67 million, $70 million, $110 million and $9 million in fiscal years
1995 through 1998. In May 1997, we sold a 51% interest in these
operations to Matsushita-Kotobuki Electronics Industries, Ltd. Subsequent
losses of this joint venture using the equity method of accounting were
$66 million in fiscal year 1998 and $41 million in the first half of
fiscal year 1999. In October 1998, we and Matsushita-Kotobuki agreed to
dissolve the joint venture and, as a result, we recorded a $101 million
loss from the investment in the third quarter of fiscal year 1999.

. The results of operations for fiscal year 1998 include the effect of a
$103 million special charge, primarily for inventory write-offs and
losses on purchase commitments, related to our high-end hard disk drive
products.
<TABLE>
<CAPTION>
At or For the Year Ended March 31,
--------------------------------------------------------
1995 1996 1997 1998 1999
---------- ---------- ---------- ---------- ----------
(In thousands, except per share amounts)
<S> <C> <C> <C> <C> <C>
Statement of Operations
Data
Revenue................. $3,367,984 $4,422,726 $5,319,457 $5,805,235 $4,902,056
Gross profit............ 563,713 542,417 768,741 875,521 871,338
Research and development
expenses............... 169,282 239,116 291,332 321,741 353,223
Sales and marketing,
general and
administrative
expenses............... 160,424 207,558 235,878 258,395 284,876
Restructuring and other
charges................ -- 209,122 -- -- --
Purchased in-process
research and
development expense.... 72,945 -- -- -- 89,000
Income (loss) from
operations............. 161,062 (113,379) 241,531 295,385 144,239
Loss from investee...... -- -- -- (66,060) (142,050)
Net income (loss)....... $ 81,591 $ (90,456) $ 148,515 $ 170,801 $ (29,535)
Net income (loss) per
share:
Basic.................. $ 0.90 $ (0.87) $ 1.27 $ 1.25 $ (0.18)
Diluted................ $ 0.76 $ (0.87) $ 1.04 $ 1.07 $ (0.18)
Balance Sheet Data
Property, plant and
equipment, net......... $ 280,099 $ 364,111 $ 407,206 $ 285,159 $ 271,928
Total assets............ 1,481,028 1,975,355 2,158,263 2,438,411 2,483,596
Total long-term debt,
convertible debt and
redeemable preferred
stock.................. 327,500 598,158 422,906 327,485 344,461
</TABLE>

7
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THE DLT & STORAGE SYSTEMS GROUP SELECTED FINANCIAL INFORMATION
This summary of financial information of the DLT & Storage Systems group for
fiscal years 1995 to 1999 should be read along with the DLT & Storage Systems
group's audited combined financial statements contained in this proxy
statement. The summarized financial information, other than the statement of
operations data for fiscal years 1995 and 1996 and the balance sheet data at
March 31, 1995, 1996 and 1997, was taken from these financial statements.

A number of items affect the comparability of this information.

. In October 1994, the DLT & Storage Systems group acquired the DLTtape drive
and DLTtape media cartridge business from Digital Equipment Corporation,
and formed what is now the DLT & Storage Systems group. The results of
operations for this business are not included in the DLT & Storage Systems
group's financial statements for periods prior to the acquisition.

. Prior to fiscal year 1999, almost all DLTtape media cartridges were sold
directly by the DLT & Storage Systems group. However, during fiscal year
1999, increased DLTtape media availability allowed licensed third party
DLTtape media cartridge manufacturers to sell DLTtape media cartridges for
which the DLT & Storage Systems group receives royalties. Royalty receipts
by the DLT & Storage Systems group are reported as royalty revenue, which
is significantly lower than the equivalent DLTtape media cartridge product
revenue for the DLT & Storage Systems group. However, this royalty model
has generated income from operations comparable to that generated by
DLTtape media cartridge sales made directly by the DLT & Storage Systems
group.

. During fiscal year 1997 and the first quarter of fiscal year 1998, the DLT
& Storage Systems group's supply of DLTtape drives was not sufficient to
meet demand. As a result, in the first half of fiscal year 1998 a few large
customers began building up larger inventories of DLTtape drives than were
required for their normal operations. As the DLT & Storage Systems group's
manufacturing capacity increased and the DLT & Storage Systems group was
able to meet customer demand for DLTtape drives, these customers reduced
their orders to lower inventories to more typical levels. These actions
resulted in reduced sales of DLTtape drives beginning in the third quarter
of fiscal year 1998 and more significantly in the fourth quarter of fiscal
year 1998 and the first quarter of fiscal year 1999.

Historical per share information is omitted because the DLT & Storage
Systems group stock was not part of the capital structure for the periods
presented. However, pro forma net income per share, reflecting the DLT &
Storage Systems group stock to be issued under the tracking stock proposal, is
presented for fiscal year 1999.
<TABLE>
<CAPTION>
At or For the Year Ended March 31,
-------------------------------------------------
1995 1996 1997 1998 1999
-------- -------- -------- ---------- ----------
Statement of Operations Data (In thousands, except per share amounts)
<S> <C> <C> <C> <C> <C>
Product revenue............. $ 88,005 $335,565 $719,925 $1,162,725 $1,181,273
Royalty revenue............. -- -- 8,088 27,075 121,463
-------- -------- -------- ---------- ----------
Total revenue.............. 88,005 335,565 728,013 1,189,800 1,302,736
Gross profit................ 32,752 126,610 270,339 502,214 579,919
Research and development
expenses................... 6,933 24,968 30,039 62,825 99,330
Sales and marketing, general
and administrative
expenses................... 4,814 19,201 35,240 69,607 114,895
Purchased in-process
research and development
expense.................... 4,218 -- -- -- 89,000
Income from operations...... 16,787 82,441 205,060 369,782 276,694
Net income (loss)........... $ (93) $ 34,973 $107,460 $ 223,659 $ 122,991
Pro forma net income per
share:
Basic...................... $ 0.77
Diluted.................... $ 0.73
Balance Sheet Data
Property, plant and
equipment, net............. $ 25,047 $ 30,135 $ 39,114 $ 57,399 $ 73,122
Total assets................ 118,476 238,337 437,925 792,070 1,013,643
Total long-term debt,
convertible debt and
redeemable preferred stock
........................... 242,482 310,150 281,937 218,324 229,641
</TABLE>

8
<PAGE>

THE HARD DISK DRIVE GROUP SELECTED FINANCIAL INFORMATION
This summary of financial information of the Hard Disk Drive group for
fiscal years 1995 to 1999 should be read along with the Hard Disk Drive group's
audited combined financial statements contained in this proxy statement. The
summarized financial information, other than the statement of operations data
for fiscal years 1995 and 1996 and the balance sheet data at March 31, 1995,
1996 and 1997, was taken from these financial statements.

A number of items affect the comparability of this information:

. Through May 1997, the Hard Disk Drive group combined the results of a
recording heads business acquired from Digital Equipment in October 1994.
These operations generated operating losses of $67 million, $70 million,
$110 million and $9 million in fiscal years 1995 through 1998. In May 1997,
Quantum sold a 51% interest in these operations to Matsushita-Kotobuki.
Subsequent losses of this joint venture using the equity method of
accounting were $66 million in fiscal year 1998 and $41 million in the
first half of fiscal year 1999. In October 1998, Quantum and Matsushita-
Kotobuki agreed to dissolve the joint venture, and, as a result, the Hard
Disk Drive group recorded an additional $101 million loss from the
investment in the third quarter of fiscal year 1999.

The Hard Disk Drive group currently has two primary product lines; desktop
hard disk drives and high-end hard disk drives. The Hard Disk Drive group has
two separate business units that support these two product lines. The Hard Disk
Drive group's recording heads operation was transferred to Matsushita-Kotobuki
and used in the manufacture of hard disk drives for the Hard Disk Drive group.
The value at which the recording heads were transferred was recorded as an
offset to cost of sales.

Historical per share information is omitted because the Hard Disk Drive
group stock was not part of the capital structure for the periods presented.
However, pro forma net loss per share, reflecting the Hard Disk Drive group
stock to be issued under the tracking stock proposal, is presented for fiscal
year 1999.

<TABLE>
<CAPTION>
At or For the Year Ended March 31,
----------------------------------------------------------
Statement of Operations 1995 1996 1997 1998 1999
Data ---------- ---------- ---------- ---------- ----------
Business unit: (In thousands, except per share amounts)
<S> <C> <C> <C> <C> <C>
Desktop
Revenue............... $2,737,585 $3,349,735 $4,004,828 $3,981,614 $3,079,437
Gross profit.......... 499,133 511,390 565,681 453,278 232,036
Unit operating profit
(loss)............... 266,936 290,767 300,287 184,331 (49,132)
High-end
Revenue............... $ 542,394 $ 737,426 $ 586,616 $ 633,821 $ 519,883
Gross profit (loss)... 47,468 (73,974) (10,721) (80,790) 59,383
Unit operating loss... (56,106) (416,620) (154,184) (250,136) (83,323)
Recording heads
Unit operating loss... (66,555) (69,967) (109,632) (8,592) --
Loss from investee.... -- -- -- (66,060) (142,050)
Combined group
Revenue................ $3,279,979 $4,087,161 $4,591,444 $4,615,435 $3,599,320
Income (loss) from
operations............ 144,275 (195,820) 36,471 (74,397) (132,455)
Net income (loss)...... $ 81,684 $ (125,429) $ 41,055 $ (52,858) $ (152,526)
Pro forma net loss per
share
Basic................. $ (1.90)
Diluted............... $ (1.90)
Balance Sheet Data
Property, plant and
equipment, net......... $ 255,051 $ 333,976 $ 368,092 $ 227,760 $ 198,806
Total assets............ 1,540,404 1,740,949 1,721,402 1,646,340 1,469,953
Total long-term debt,
convertible debt and
redeemable preferred
stock.................. 250,833 288,008 140,969 109,161 114,820
</TABLE>

9
<PAGE>

RISK FACTORS

The risk factors included through page 15 discuss risks arising from a
capital structure with two separate classes of tracking stock. Beginning on
page 15, we discuss risks which are specific to a particular group.

You will remain stockholders of one company and, therefore, financial effects
on one group could adversely affect the other

Holders of DLT & Storage Systems group stock and Hard Disk Drive group stock
will be stockholders of a single company. The DLT & Storage Systems group and
the Hard Disk Drive group will not be separate legal entities. As a result,
stockholders will continue to be subject to all of the risks of an investment
in Quantum and all of our businesses, assets and liabilities. The issuance of
the DLT & Storage Systems group stock and the Hard Disk Drive group stock and
the allocation of assets and liabilities and stockholders' equity between the
DLT & Storage Systems group and the Hard Disk Drive group will not result in a
distribution or spin-off to stockholders of any of our assets or liabilities
and will not affect ownership of our assets or responsibility for our
liabilities or those of our subsidiaries. The assets we attribute to one group
could be subject to the liabilities of the other group, whether such
liabilities arise from lawsuits, contracts or indebtedness that we attribute to
the other group. If we are unable to satisfy one group's liabilities out of the
assets we attribute to it, we may be required to satisfy those liabilities with
assets we have attributed to the other group.

Financial effects from one group that affect our consolidated results of
operations or financial condition could, if significant, affect the results of
operations or financial condition of the other group and the market price of
the tracking stock relating to the other group. In addition, net losses of
either group and dividends and distributions on, or repurchases of, either
class of tracking stock or repurchases of preferred stock at a price per share
greater than par value will reduce the funds we can pay on each class of
tracking stock under Delaware law. For these reasons, you should read our
consolidated financial information with the financial information we provide
for each group.

Holders of tracking stock will have stockholder rights specific to their group
only in limited circumstances

Holders of DLT & Storage Systems group stock or Hard Disk Drive group stock
generally will not have stockholder rights specific to their corresponding
groups. Instead, holders will have customary stockholder rights relating to
Quantum as a whole. For example, holders of DLT & Storage Systems group stock
and Hard Disk Drive group stock would vote as a single class to approve a
disposition of all or substantially all of the assets of Quantum. Holders of
either tracking stock will only have the following rights with respect to their
particular group:

. an opportunity to receive dividends declared by our board of directors
based on the available dividend amount for their group;

. requirements for a mandatory dividend, redemption or conversion upon the
disposition of all or substantially all of the assets of their group; and

. a right to vote on matters as a separate voting class in the
circumstances described under "Proposal 1--The Tracking Stock Proposal--
Description of DLT & Storage Systems group stock and Hard Disk Drive
group stock--Voting Rights."

Limits exist on voting power of tracking stock

In circumstances where the two classes of tracking stock vote together as a
single class, Hard Disk Drive group stock may not initially have any influence
on the outcome of stockholder voting

We expect that initially the DLT & Storage Systems group stock will have a
substantial majority of the combined voting power of the tracking stocks.
Except in limited circumstances requiring separate class voting, either class
of tracking stock that is entitled to more than the number of votes required to
approve any stockholder action could control the outcome of a vote--even if the
matter involves a divergence or conflict of the interests of the holders of the
DLT & Storage Systems group stock and the Hard Disk Drive group stock. These
matters may include mergers and other extraordinary transactions.

10
<PAGE>

In circumstances where a separate class vote is required, the class of
tracking stock with less than majority voting power can block action

If Delaware law, New York Stock Exchange rules or our board of directors
requires a separate vote on a matter by the holders of either the DLT & Storage
Systems group stock or the Hard Disk Drive group stock, those holders could
prevent approval of the matter--even if the holders of a majority of the total
number of votes cast or entitled to be cast, voting together as a class, were
to vote in favor of it.

In circumstances where the two classes of tracking stock vote together as a
single class, holders of only one class of tracking stock can not ensure that
their voting power will be sufficient to protect their interests

Since the relative voting power per share of DLT & Storage Systems group
stock and Hard Disk Drive group stock will fluctuate based on the relative
market values of the two classes of tracking stock, the relative voting power
of a class of tracking stock could decrease. As a result, holders of shares of
only one of the two classes of tracking stock cannot ensure that their voting
power will be sufficient to protect their interests where the holders of the
two tracking stocks vote together as a single class.

Stockholders may not have any remedies for breach of fiduciary duties if any
action by directors and officers has a disadvantageous effect on either class
of tracking stock

Stockholders may not have any remedies if any action or decision of our
directors or officers has a disadvantageous effect on the DLT & Storage Systems
group stock or the Hard Disk Drive group stock compared to the other class of
tracking stock.

Recent cases in Delaware involving tracking stocks have established that
decisions by directors or officers involving differing treatment of tracking
stocks are judged under the business judgment rule unless self-interest is
shown. The business judgment rule provides that, absent an abuse of discretion,
a director or officer will be deemed to have satisfied his or her fiduciary
duties to our company and our stockholders if that person is disinterested and
acts in accordance with his or her good faith business judgment in the
interests of our company and our stockholders as a whole. The business judgment
rule could shield a decision by our directors or officers that adversely
affects one class of stock but was believed to benefit our company and
stockholders as a whole. Accordingly, because of the business judgment rule,
holders of a tracking stock who are disadvantaged by an action of our directors
or officers may not be able to successfully make claims alleging breach of
fiduciary duty.

Stock ownership could cause directors and officers to favor one group over the
other

Following the implementation of the tracking stock proposal, we expect that
our directors and officers will have stock and option holdings in both the DLT
& Storage Systems group stock and the Hard Disk Drive group stock. Anticipated
differences in the trading values between the DLT & Storage Systems group stock
and the Hard Disk Drive group stock will cause the relative values of their
interests in the two tracking stocks to vary significantly. Accordingly, it is
possible that they could have an incentive to favor one group over the other
because of the relative values of their interests.

Numerous potential conflicts of interest exist between the classes of tracking
stock which may be difficult to resolve by our board or which may be resolved
adversely to one of the classes

Our board of directors may pay more or less dividends on one group's tracking
stock than if that group was a separate company

Subject to the limitations referred to below, our board of directors has the
authority to declare and pay dividends on the DLT & Storage Systems group stock
and the Hard Disk Drive group stock in any amount. Our board of directors
could, in its sole discretion, declare and pay dividends exclusively on the DLT
& Storage Systems group stock, exclusively on the Hard Disk Drive group stock,
or on both, in equal or unequal amounts. The performance of one group may cause
our board of directors to pay more or less dividends on the tracking stock
relating to the other group than if that other group was a stand-alone
corporation. Our board of directors will not be required to consider the amount
of dividends previously declared on each class, the respective voting or
liquidation rights of each class or any other factor. In addition, Delaware law
and the restated certificate of incorporation

11
<PAGE>

impose limitations on the amount of dividends which may be paid on each class
of tracking stock. For additional information on these limitations, see
"Proposal 1--The Tracking Stock Proposal--Dividend Policy" and "--Description
of DLT & Storage Systems group stock and Hard Disk Drive group stock--
Dividends."

Proceeds of mergers or consolidations may be allocated unfavorably

Because the restated certificate of incorporation does not specify how
consideration to be received in a merger or consolidation involving Quantum
will be allocated between the holders of DLT & Storage Systems group stock and
the holders of Hard Disk Drive group stock, our board of directors will make
that determination. That determination could favor one group's stockholders at
the expense of the other group's stockholders.

Holders of either class of tracking stock may be adversely affected by a
conversion of one group's tracking stock

Our board of directors could, in its sole discretion and without stockholder
approval, determine to convert shares of DLT & Storage Systems group stock into
shares of Hard Disk Drive group stock, or vice versa at any time including when
either or both classes of tracking stock may be considered to be overvalued or
undervalued. Any conversion at a premium would dilute the interests in Quantum
of the holders of the class of tracking stock being issued in the conversion.
Any conversion would also preclude holders of both classes of tracking stock
from retaining their investment in a security that is intended to reflect
separately the performance of the relevant group. It would also give holders of
shares of the class of tracking stock converted a greater or lesser premium
than any premium that might be paid by a third-party buyer of all or
substantially all of the assets of the group whose stock is converted. For
additional information on the terms and conditions of a conversion of one
tracking stock into the other, see "Proposal 1--The Tracking Stock Proposal--
Description of DLT & Storage Systems Group Stock and Hard Disk Drive Group
Stock--Conversion and Redemption."

Allocation of corporate opportunities could favor one group over the other

Our board of directors may be required to allocate corporate opportunities
between the groups. In some cases, our directors could determine that a
corporate opportunity, such as a business that we are acquiring, should be
shared by the groups. These decisions could favor one group at the expense of
the other. For additional information on the factors affecting these decisions,
see "Proposal 1--The Tracking Stock Proposal--Management and Allocation
Policies--Review of Corporate Opportunities."

Groups may compete with each other to the detriment of their businesses

The creation of two separate classes of tracking stock will not prevent the
groups from competing with each other. Any competition between the groups could
be detrimental to the businesses of either or both of the groups. Our Chief
Executive Officer or our board of directors will permit indirect competition
between the groups based on his or its good faith business judgment that
competition is in the best interests of our company and all of our stockholders
as a whole. In addition, the groups may compete in a business that is not a
principal business of the other group. For additional information on our policy
regarding competition, see "Proposal 1--The Tracking Stock Proposal--Management
and Allocation Policies--Competition Between Groups."

Our board of directors may change our management and allocation policies
without stockholder approval to the detriment of one group

Our board of directors may modify or rescind our policies with respect to
the allocation of corporate overhead, taxes, debt, interest and other matters,
or may adopt additional policies in its sole discretion without stockholder
approval. A decision to modify or rescind these policies, or adopt additional
policies, could have different effects on holders of DLT & Storage Systems
group stock and holders of Hard Disk Drive group stock or could adversely
affect one class of stockholders compared to the other class. For example, our
board of directors could modify the policy regarding competition between the
groups to prohibit indirect

12
<PAGE>

competition altogether. That prohibition could adversely affect the Hard Disk
Drive group and beneficially affect the DLT & Storage Systems group by
preventing the Hard Disk Drive group from selling its products to third party
competitors of the DLT & Storage Systems group. Conversely, that prohibition
could adversely affect the DLT & Storage Systems group and beneficially affect
the Hard Disk Drive group by preventing the DLT & Storage Systems group from
buying products from third party competitors of the Hard Disk Drive group.

Either group may finance the other group on terms unfavorable to one of the
groups

We anticipate that we will transfer cash and other property between groups
to finance their business activities. Our board of directors has not adopted
specific criteria to determine whether a particular transfer of cash or
property from one group to the other will be accounted for as a reallocation
of "pooled" debt or preferred stock, a short-term or long-term loan or a sale
of assets. These determinations, including the terms of any transactions
accounted for as a loan, could be unfavorable to either group. For example, we
cannot assure you that any terms that we fix for debt will approximate those
that could have been obtained by the borrowing group if it were a stand-alone
corporation. For additional information on the financing of the groups'
operations, see "Proposal 1--The Tracking Stock Proposal--Management and
Allocation Policies--Financing Activities."

Holders of one group's tracking stock may receive less consideration upon a
sale of assets than if the group were a separate company

The restated certificate of incorporation provides that if we dispose of
all or substantially all of the assets of either group, we must, subject to
certain exceptions,

. distribute to holders of that group's tracking stock an amount equal to
the net proceeds of the disposition; or

. convert the outstanding shares of that group's tracking stock into shares
of the other group's tracking stock at a 10% premium for the first five
years following the implementation of the tracking stock proposal and
without any premium after that five-year period.

If the group whose assets are disposed were a separate, independent company
and its shares were acquired by another person, certain costs of that
disposition, including corporate level taxes, might not be payable in
connection with that acquisition. As a result, stockholders of the separate,
independent company might receive a greater amount than the net proceeds that
would be received by holders of the group's tracking stock. In addition, we
can not assure you that the net proceeds per share of that group's tracking
stock will be equal to or more than the market value per share of the tracking
stock prior to or after announcement of a disposition. For additional
information on the terms and conditions of a conversion upon a disposition
assets of a group, see "Proposal 1--The Tracking Stock Proposal--Description
of DLT & Storage Systems Group Stock and Hard Disk Drive Group Stock--
Conversion and Redemption--Mandatory Dividend, Redemption or Conversion of
Tracking Stock If Disposition of Group Assets Occurs."

It might be possible for an acquiror to obtain control of Quantum by
purchasing shares of only one of the tracking stocks

A potential acquiror could acquire control of Quantum by acquiring shares
of tracking stock having a majority of the voting power of all shares of
tracking stock outstanding. Such a majority could be obtained by acquiring a
sufficient number of shares of both classes of tracking stock or, if one class
of tracking stock has a majority of the voting power, only shares of that
class. We expect that initially the DLT & Storage Systems group stock will
have a substantial majority of the voting power. As a result, initially, it
might be possible for an acquiror to obtain control of Quantum by purchasing
only shares of DLT & Storage Systems group stock.

Decisions by directors and officers that affect market values could adversely
affect voting and conversion rights

The relative voting power per share of each class of tracking stock and the
number of shares of one class of tracking stock issuable upon the conversion
of the other class of tracking stock will vary depending upon the relative
market values of

13
<PAGE>

the DLT & Storage Systems group stock and the Hard Disk Drive group stock. The
market value of either or both classes of tracking stock could be adversely
affected by market reaction to decisions by our board of directors or our
management that investors perceive to affect differently one class of tracking
stock compared to the other. These decisions could involve changes to our
management and allocation policies, transfers of assets between groups,
allocations of corporate opportunities and financing resources between groups
and changes in dividend policies.

Market value of the stock received under the tracking stock proposal may be
less than the market value of existing common stock

We can not assure you that the combined market values of a share of DLT &
Storage Systems group stock and of 0.5 of a share of Hard Disk Drive group
stock received under the tracking stock proposal will equal or exceed the
market value of a share of our existing common stock.

Market price of either class of tracking stock may be affected by the number of
market makers

The market price of the DLT & Storage Systems group stock or the Hard Disk
Drive group stock may be affected by the number of market makers supporting the
DLT & Storage Systems group stock or the Hard Disk Drive group stock.

Market price of tracking stock not included in stock market indices could
decline

We can not assure you that the DLT & Storage Systems group stock or the Hard
Disk Drive group stock will be included in any particular index. As a result,
holders of our existing common stock that are required to own only stocks
included in a particular index would be required to sell immediately any class
of tracking stock not included in that index. Not being included in a
particular index could adversely affect the market price of that class of
tracking stock.

Provisions governing tracking stock could discourage a change of control and
the payment of a premium for shares

Our restated stockholder rights plan could prevent stockholders from
profiting from an increase in the market value of their shares as a result of a
change in control of our company by delaying or preventing a change in control.
The existence of two classes of tracking stock could also present complexities
and could pose obstacles, financial and otherwise, to an acquiring person. In
addition, provisions of Delaware law, the restated certificate of incorporation
and the by-laws may also deter hostile takeover attempts. For additional
information on these provisions, see "Proposal 1--The Tracking Stock Proposal--
Restated Rights Agreement" and "--Certain Anti-Takeover Provisions of Delaware
Law and the Restated Certificate of Incorporation, the By-laws and the Restated
Rights Agreement."

IRS could assert that the receipt of tracking stock is taxable

We have been advised by Ernst & Young LLP that no income, gain or loss will
be recognized by you for federal income tax purposes as a result of the
tracking stock proposal, except for any cash received instead of fractional
shares of Hard Disk Drive group stock. However, the Internal Revenue Service
could disagree. There are no court decisions or other authorities bearing
directly on the effect of the features of the DLT & Storage Systems group stock
and the Hard Disk Drive group stock. In addition, the Internal Revenue Service
has announced that it will not issue rulings on the characterization of stock
with characteristics similar to the DLT & Storage Systems group stock and the
Hard Disk Drive group stock. It is possible, therefore, that the Internal
Revenue Service could successfully assert that the receipt of the DLT & Storage
Systems group stock or the Hard Disk Drive group stock as well as the
subsequent conversion of one tracking stock into the other could be taxable to
you and to us as ordinary income.

Recent Clinton Administration proposal could result in taxation on issuances of
tracking stock

14
<PAGE>

directors currently intends to implement the proposal, subject to further
legislative developments relating to the Clinton Administration tax proposal.

Under the restated certificate of incorporation, we may convert the DLT &
Storage Systems group stock or the Hard Disk Drive group stock into shares of
the other class without any premium if there are adverse U.S. federal income
tax law developments. The proposal of the Clinton Administration would be such
an adverse development if it is implemented or proposed to be implemented by
an applicable federal legislative committee or its chair. For additional
information on the events that could cause us to effect a conversion, see
"Proposal 1--The Tracking Stock Proposal--Description of DLT & Storage Systems
Group Stock and Hard Disk Drive Group Stock--Conversion and Redemption--
Conversion of Common Stock at Option of Quantum at any Time" and "--United
States Federal Income Tax Consequences."

Risk Factors Relating to the DLT & Storage Systems Group

Competition may increase in the tape drive market as a result of large
competitors introducing tape drive products based on new technology standards

The DLT & Storage Systems group competes with companies that develop,
manufacture, market and sell tape drive products. The DLT & Storage Systems
group's principal competitors include Exabyte Corporation, Hewlett-Packard
Company, Seagate Technology, Inc., Sony Corporation and StorageTek. These
competitors are aggressively trying to develop new tape drive technologies
that compete more successfully with DLTtape technology. Hewlett-Packard, IBM
and Seagate have formed a consortium to develop new linear tape drive
products. The DLT & Storage Systems group expects products based on this
developing technology standard to target the high-capacity data back-up market
and to compete with the DLT & Storage Systems group's products based on Super
DLTtape(TM) technology. Such competition could have a material adverse impact
on the DLT & Storage Systems group's operating results.

The DLT & Storage Systems group's operating results depend on new product
introductions which may not be successful

To compete effectively, the DLT & Storage Systems group must improve
existing products and introduce new products, such as products based on Super
DLTtape technology and network attached storage appliances. The DLT & Storage
Systems group cannot assure you that:

. it will introduce any of these new products in the time frame the DLT &
Storage Systems group currently forecasts;

. it will not experience technical or other difficulties that could prevent
or delay the introduction of these new products;

. its new products will achieve market acceptance;

. its new products will be successfully or timely qualified with the DLT &
Storage Systems group's customers by meeting customer performance and
quality specifications. A successful and timely customer qualification
must occur before customers will place large product orders; or

. it will achieve high volume production of these new products in a timely
manner, if at all.

This risk is magnified because the DLT & Storage Systems group expects
technological changes, customer requirements and increasing competition could
result in declining sales and gross margins on its existing products.

Reliance on a limited number third-party suppliers could result in
significantly increased costs and delays in the event these suppliers
experience shortages or quality problems

The DLT & Storage Systems group depends on a limited number of suppliers
for components and sub-assemblies, including recording heads, media cartridges
and integrated circuits, all of which are essential to the manufacture of
DLTtape drives and tape libraries. The DLT & Storage Systems group currently
purchases the DLTtape media cartridges it sells primarily from Fuji Photo Film
Co., Ltd. and Hitachi Maxell, Ltd. The DLT & Storage Systems group cannot
assure you that Fuji or Maxell will continue to supply adequate high quality
media

15
<PAGE>

cartridges in the future. If component shortages occur, or if the DLT & Storage
Systems group experiences quality problems with component suppliers, shipments
of products could be significantly delayed and/or costs significantly
increased. In addition, the DLT & Storage Systems
from, one or more key customers could materially adversely impact the DLT &
Storage Systems group's operating results.

Unpredictable end-user demand may cause excess or insufficient inventories
which could result in inventory write-downs or losses and an adverse impact on
the DLT & Storage Systems group's customer relationships

Unpredictable end-user demand, combined with the computer equipment
manufacturer trend toward carrying minimal inventory levels, increases the risk
that the DLT & Storage Systems group will manufacture and custom configure too
much or too little inventory for particular customers. Significant excess
inventory could result in inventory write-downs and losses while inventory
shortages could adversely impact the DLT & Storage Systems group's relationship
with its customers, either of which could adversely impact the DLT & Storage
Systems group's operating results.

The DLT & Storage Systems group does not control licensee pricing or licensee
sales of DLTtape media cartridges and as a result the DLT & Storage Systems
group's royalty revenue may decline

The DLT & Storage Systems group receives a royalty fee based on sales of
DLTtape media cartridges by Fuji and Maxell. Under the DLT & Storage Systems
group's license agreements with Fuji and Maxell, each of the licensees
determine the pricing and number of units of DLTtape media cartridges sold by
it. As a result, the DLT & Storage Systems group's royalty revenue will vary
depending upon the level of sales and prices set by Fuji and Maxell. In
addition, lower licensee pricing could require the DLT & Storage Systems group
to lower its prices on direct sales of DLTtape media cartridges which would
adversely impact the DLT & Storage Systems group's margins for this product.

Third party infringement claims could result in substantial liability and
significant costs

From time to time, third parties allege the DLT & Storage Systems group's
infringement of and need for a license under their patented or other
proprietary technology. Adverse resolution of any third party infringement
claim could subject the group qualifies only a single source for many
components and sub-assemblies, which magnifies the risk of future shortages.

The DLT & Storage Systems group's sole supplier of tape heads is located in
China and political instability, trade restrictions or currency fluctuations
in China could have an adverse impact on the DLT & Storage Systems group's
operating results.

The DLT & Storage Systems group's sole supplier of tape heads is located in
China and political instability, trade restrictions, changes in tariff or
freight rates or currency fluctuations in China could result in increased
costs, delays in shipment and could have an adverse impact on the DLT & Storage
Systems group's operating results.

The DLT & Storage Systems group's quarterly operating results could fluctuate
significantly and past quarterly operating results should not be used to
predict future performance

The DLT & Storage Systems group's quarterly operating results have
fluctuated significantly in the past and could fluctuate significantly in the
future. Quarterly operating results could be adversely affected by:

. an inadequate supply of DLTtape media cartridges;

. customers canceling, deferring or rescheduling significant orders as a
result of excess inventory levels or other factors;

. declines in network server demand; or

. failure to complete shipments in the last month of a quarter during which
a substantial portion of the DLT & Storage Systems group's products are
typically shipped.

A majority of sales come from a few customers and these customers have no
minimum or long-term purchase commitments

The DLT & Storage Systems group's sales are concentrated with a few
customers. Customers are not obligated to purchase any minimum product volume
and the DLT & Storage Systems group's relationships with its customers are
terminable at

16
<PAGE>

will. The loss of, or a significant change in demand DLT & Storage Systems
group to substantial liabilities and require it to refrain from manufacturing
and selling certain products. In addition, the costs incurred in intellectual
property litigation can be substantial, regardless of the outcome.

Risk Factors Relating to the Hard Disk Drive Group

The Hard Disk Drive group's operating results depend on new product
introductions which may not be successful

To compete effectively, the Hard Disk Drive group must frequently introduce
new hard disk drives. The Hard Disk Drive group cannot assure you that:

. it will successfully or timely develop or market any new hard disk drives
in response to technological changes or evolving industry standards;

. it will not experience technical or other difficulties that could delay
or prevent the successful development, introduction or marketing of new
hard disk drives;

. it will successfully qualify new hard disk drives, particularly high-end
disk drives, with the Hard Disk Drive group's customers by meeting
customer performance and quality specifications. A successful and timely
customer qualification must occur before customers will place large
product orders;

. it will quickly achieve high volume production of new hard disk drives;
or

. its new products will achieve market acceptance.

These risks are magnified because the Hard Disk Drive group expects
technological changes, short product life cycles and intense competitive
pressures to result in declining sales and gross margins on its current
generation products.

The Hard Disk Drive group's inability to successfully incorporate giant
magneto-resistive recording heads into its hard disk drives would have an
adverse impact on product sales

In calendar year 1999, the Hard Disk Drive group expects increasing
industry-wide competition for hard disk drives that incorporate next generation
recording head technology known as giant magneto-resistive recording heads. IBM
has already commenced shipment of hard disk drives which incorporate giant
magneto-resistive recording heads. The Hard Disk Drive group cannot assure you
that it will be able to incorporate giant magneto-resistive recording heads
into its hard disk drives in a timely manner. If the Hard Disk Drive group is
successful in incorporating giant magneto-resistive recording heads into its
hard disk drives, the Hard Disk Drive group cannot assure you that such drives
will achieve market acceptance.

The Hard Disk Drive group's quarterly operating results could fluctuate
significantly and past quarterly operating results should not be used to
predict future performance

The Hard Disk Drive group's quarterly operating results have fluctuated
significantly in the past and may fluctuate significantly in the future. As a
result, you should not use the Hard Disk Drive group's past quarterly operating
results to predict future performance. Quarterly operating results could be
adversely affected by:

. the ability of Matsushita-Kotobuki, the Hard Disk Drive group's
exclusive manufacturer, to quickly achieve high volume production of the
Hard Disk Drive group's hard disk drives;

. customers canceling, deferring or rescheduling significant orders;

. returns by customers of unsold hard disk drives for credit;

. decline in PC demand; or

. failure to complete shipments in the last month of a quarter during which
a substantial portion of the Hard Disk Drive group's products are
typically shipped.

The Hard Disk Drive group's prices and margins are subject to declines due to
unpredictable end-user demand and oversupply of hard disk drives

End-user demand for the computer systems which contain the Hard Disk Drive
group's hard disk drives has historically been subject to rapid and
unpredictable fluctuations. As a result, the hard disk

17
<PAGE>

drive market tends to experience periods of excess capacity which typically
lead to intense price competition. If intense price competition occurs, the
Hard Disk Drive group may be forced to lower prices sooner and more than
expected and transition to new products sooner than expected. For example, in
fiscal year 1999 and the second half of fiscal year 1998, as a result of
excess inventory in the desktop hard disk drive market, aggressive pricing and
corresponding margin reductions materially adversely impacted the Hard Disk
Drive group's operating results. The Hard Disk Drive group experienced similar
conditions in the high-end hard disk drive market during most of fiscal years
1998 and 1999.

Growth of the lower priced PC markets is putting downward pressure on the
Hard Disk Drive group's desktop hard disk drive prices and margins

The recent growth of the lower priced PC market has led to a shift toward
lower priced desktop hard disk drives, and to significantly reduced gross
margins. The Hard Disk Drive group expects the trend toward lower prices and
margins on hard disk drives to continue. If the Hard Disk Drive group is
unable to lower the cost of its desktop hard disk drives accordingly, gross
margins will continue to decrease.

Intense competition in the desktop and high-end hard disk drive market could
adversely impact the Hard Disk Drive group's operating results

In the desktop hard disk drive market, the Hard Disk Drive group's primary
competitors are Fujitsu Limited, IBM, Maxtor Corporation, Samsung Electronics
Co., Ltd, Seagate and Western Digital Corporation. The desktop hard disk drive
market is characterized by more competitiveness than that seen in the computer
industry in general. The Hard Disk Drive group's operating results and
competitive position could be negatively impacted by the introduction of
competitive products with higher performance, higher reliability and/or lower
cost than the Hard Disk Drive group's products.

In the high-end hard disk drive market, the Hard Disk Drive group's primary
competitors are Fujitsu, Hitachi, IBM, Seagate and Western Digital. Currently,
Seagate and IBM have the largest market share for high-end hard disk drives.
Intense technology and pricing competition has led to losses on the Hard Disk
Drive group's high-end hard disk drive products over the past eight quarters.
The Hard Disk Drive group does not anticipate that its high-end hard disk
drive products will return to profitability prior to shipping its next
generation products.

A majority of sales come from a few customers that have no minimum or long-
term purchase commitments

The Hard Disk Drive group's sales are concentrated with a few customers.
Customers are not obligated to purchase any minimum product volume and the
Hard Disk Drive group's customer relationships are terminable at will. The
loss of, or a significant change in demand from, one or more key the Hard Disk
Drive group customers could have a material adverse impact on the Hard Disk
Drive group's operating results.

Because the Hard Disk Drive group depends on Matsushita-Kotobuki for the
manufacture of all hard disk drives, adverse material developments in this
critical manufacturing relationship would adversely impact the Hard Disk
Drive group's operating results

The Hard Disk Drive group's relationship with Matsushita-Kotobuki is
critical to the Hard Disk Drive group's operating results and overall business
performance. The Hard Disk Drive group's dependence on Matsushita-Kotobuki
includes the following principal risks:

. Quality and Delivery. The Hard Disk Drive group relies on Matsushita-
Kotobuki to quickly achieve volume production of new hard disk drives at
a competitive cost, to meet the Hard Disk Drive group's stringent quality
requirements and to respond quickly to changing product delivery
schedules. Failure of Matsushita-Kotobuki to satisfy these requirements
could have a material adverse impact on the Hard Disk Drive group's
operating results.

. Purchase Forecasts. Matsushita-Kotobuki's production schedule is based on
the Hard Disk Drive group's forecasts of its

18
<PAGE>

purchase requirements, and the Hard Disk Drive group has limited rights to
modify short-term purchase orders. The failure of the Hard Disk Drive
group to accurately forecast its requirements or successfully adjust
Matsushita-Kotobuki's production schedule could lead to inventory
shortages or surpluses.

. Pricing. The Hard Disk Drive group negotiates pricing arrangements with
Matsushita-Kotobuki on a quarterly basis. Any failure to reach
competitive pricing arrangements would have a material adverse impact on
the Hard Disk Drive group's operating results.

. Capital Commitment. The Hard Disk Drive group's future growth will
require that Matsushita-Kotobuki continue to devote substantial financial
resources to property, plant and equipment to support the manufacture of
the Hard Disk Drive group's products.

. Manufacturing Capacity. If Matsushita-Kotobuki is unable or unwilling to
meet the Hard Disk Drive group's manufacturing requirements, an
alternative manufacturing source may not be available in the near-term.

Matsushita-Kotobuki depends on a limited number of component and sub-assembly
suppliers and component shortages and quality problems or delays from these
suppliers could result in increased costs and reduced sales

Matsushita-Kotobuki depends on a limited number of qualified suppliers for
components and sub-assemblies, including recording heads, media and integrated
circuits, all of which are essential to the manufacture of the Hard Disk Drive
group's hard disk drives. Matsushita-Kotobuki may qualify only a single source
for certain components and sub-assemblies, which can magnify the risk of
component shortages. Component shortages have constrained the Hard Disk Drive
group's sales growth in the past, and the Hard Disk Drive group believes that
it will periodically experience component shortages. If Matsushita-Kotobuki
experiences quality problems with its component suppliers, the Hard Disk Drive
group's hard disk drive shipments could be significantly delayed or costs
could be significantly increased.

Unexpected warranty costs could have a material adverse impact on operating
results

The Hard Disk Drive group warrants its products against defects for a
period of one to five years. Actual warranty costs could have a material
adverse impact on the Hard Disk Drive group's operating results if the actual
unit failure rate or unit repair costs are greater than those for which the
Hard Disk Drive group established a warranty accrual.

Third party infringement claims could result in substantial liability and
significant costs

From time to time, third parties allege the Hard Disk Drive group's
infringement of and need for a license under their patented or other
proprietary technology. For example, in August 1998 Quantum was named as one
of several defendants in a patent infringement lawsuit. The plaintiff, Papst
Licensing GmbH, owns at least 24 U.S. patents, which it asserts that the Hard
Disk Drive group has infringed. Adverse resolution of the Papst litigation or
any other third party infringement claim could subject the Hard Disk Drive
group to substantial liabilities and require it to refrain from manufacturing
and selling certain products. The Hard Disk Drive group cannot assure you that
licenses to any technology owned by Papst or any other third party alleging
infringement could be obtained on commercially reasonable terms, or at all. In
addition, the costs of litigation could be substantial, regardless of the
outcome.

The Hard Disk Drive group's foreign manufacturing costs could be adversely
impacted by fluctuations in currency exchange rates

Matsushita-Kotobuki generally purchases manufacturing components at prices
denominated in U.S. dollars. However, significant increases in currency
exchange rates against the U.S. Dollar could increase Matsushita-Kotobuki's
manufacturing costs and could result in higher product prices and/or declining
margins for the Hard Disk Drive group's products.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

Many of the statements included in this proxy statement, including those
under the captions

19
<PAGE>

"Proxy Statement Summary--The Tracking Stock Proposal," "Risk Factors,"
"Quantum Corporation-- Management's Discussion and Analysis of Financial
Condition and Results of Operations," "Business of the DLT & Storage Systems
Group," "The DLT & Storage Systems Group--Management's Discussion and Analysis
of Financial Condition and Results of Operations," "Business of the Hard Disk
Drive group" and "The Hard Disk Drive Group--Management's Discussion and
Analysis of Financial Condition and Results of Operations" are forward looking
statements within the meaning of Section 27A of the Securities Act of 1933, as
amended, and Section 21E of the Securities Exchange Act of 1934, as amended.
Forward-looking statements can be identified by the use of forward-looking
terminology, such as "may," "will," "project," "estimate," "anticipate,"
"believe," "expect," "continue," "potential," "opportunity," or the negative of
those terms or other variations of those terms or comparable terminology or
expressions.

All forward-looking statements are inherently uncertain as they are based on
various expectations and assumptions concerning future events and they are
subject to numerous known and unknown risks and uncertainties. The Private
Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-
looking statements.

In order to comply with the terms of the safe harbor, we note that a variety
of the risks and uncertainties that we discuss in detail under "Risk Factors"
could cause our actual results and experience to differ materially from those
expected. Readers are cautioned not to place undue reliance on forward-looking
statements in this proxy statement, which speak only as of the date of this
proxy statement.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and special reports, proxy statements and other
information with the SEC. Our SEC filings are available to the public over the
Internet at the SEC's web site at http://www.sec.gov. You may also read and
copy any document we file at the SEC's public reference room at 450 Fifth
Street, N.W. Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for
further information about the public reference room.

The SEC allows us to "incorporate by reference" the information we file with
it, which means that we can disclose important information to you by referring
you to those documents. The information incorporated by reference is an
important part of this proxy statement, and information that we file later with
the SEC will automatically update and supersede this information.

We incorporate by reference our documents listed below and any future
filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the
Securities Exchange Act of 1934 until the special meeting:

. Annual Report on Form 10-K for the fiscal year ended March 31, 1999.

You should rely only on the information incorporated by reference or
provided in this proxy statement. We have not authorized anyone else to provide
you with different information. You should not assume that the information in
this proxy statement is accurate as of any date other than the date on the
front of this document.

INFORMATION ABOUT THE SPECIAL
MEETING AND VOTING

Date, Time and Place of Meeting

We are providing this proxy statement to you in connection with the
solicitation of proxies by our board of directors for use at the special
meeting. The special meeting will be held on July 23, 1999, at 10:00 a.m.,
local time, at our headquarters at 500 McCarthy Boulevard, Milpitas,
California. This proxy statement is first being mailed to our stockholders on
or about June 23, 1999.

Record Date

We have established June 4, 1999 as the record date for the special meeting.
Only holders of record of shares of our existing common stock at the close of
business on this date will be eligible to vote at the special meeting.

Proposals to be Considered at the Meeting

You will be asked to consider and vote on the two proposals described in
this proxy statement.

20
<PAGE>

If either proposal is approved, we will implement it whether or not the
other proposal is approved.

We do not expect that any other matter will be brought before the special
meeting. If, however, other matters are properly presented, the individuals
named on your proxy card will vote in accordance with their judgment with
respect to those matters.

Vote Required to Approve the Proposals

The tracking stock proposal will require the favorable vote of the holders
of a majority of the outstanding shares of our existing common stock. As a
result, abstentions and broker non-votes on the tracking stock proposal will
have the same effect as negative votes. Broker non-votes occur when a broker
returns a proxy but does not have authority to vote on a particular proposal.

The proposal to amend our employee stock purchase plan will be decided by
the favorable vote of a majority of the outstanding shares of our existing
common stock represented in person or by proxy at the special meeting. Under
Delaware law, abstentions will have the same effect as negative votes on this
proposal, while broker non-votes will not affect the outcome of this proposal.

Each outstanding share of existing common stock has one vote on each
proposal. As of June 4, 1999, the most recent practicable date prior to the
date of this proxy statement, we had issued and outstanding approximately
167,739,218 shares of existing common stock. The shares of existing common
stock held in our treasury will not be entitled to vote or counted in
determining the number of outstanding shares.

Our directors and executive officers beneficially owned approximately 1.5%
of the outstanding shares of our existing common stock on June 4, 1999.

Quorum

In order to carry on the business of the special meeting, we must have a
quorum. This means a majority of the votes eligible to be cast by holders of
shares of our existing common stock outstanding on the record date must be
represented in person or by proxy at the special meeting. Abstentions and
broker non-votes will count for quorum purposes.

Procedure for Voting by Proxy

If you properly fill in your proxy card and send it to us in time to vote,
your shares will be voted as you have directed. If you sign the proxy card but
do
not make specific choices, the individuals named on your proxy card will vote
your shares in favor of approval and adoption of each proposal. If you mark
"abstain" on your proxy card, your shares will be counted as present for
purposes of determining the presence of a quorum. If necessary, unless you have
indicated on your proxy card that you wish to vote against either or both the
proposals, the individuals named on your proxy card may vote in favor of a
proposal to adjourn the special meeting to a later date in order to solicit and
obtain sufficient votes for either of the proposals.

A proxy card is enclosed for your use. To vote without attending the special
meeting in person, you should complete, sign, date and return the proxy card in
the accompanying envelope, which is postage-paid if mailed in the United
States. In addition, you may vote by telephone or via the Internet by following
the instructions on the enclosed proxy card.

If you have completed and returned a proxy card, you can still vote in
person at the special meeting. You may revoke your proxy before it is voted by:

. submitting a new proxy card with a later date;

. voting in person at the special meeting; or

. filing with our company or with our transfer agent a written revocation
of proxy.

Attendance at the special meeting will not of itself constitute revocation
of a proxy.

PROPOSAL 1--THE TRACKING STOCK PROPOSAL

Description of the Tracking Stock Proposal

You are being asked to consider and approve the tracking stock proposal. If
approved, the tracking stock proposal will allow Quantum to adopt a restated
certificate of incorporation containing amendments to its certificate of
incorporation under which each outstanding share of our existing

21
<PAGE>

common stock will be changed into one share of DLT & Storage Systems group
stock and 0.5 of a share of Hard Disk Drive group stock.

Quantum will not issue any fractional shares of Hard Disk Drive group stock.
Any stockholder entitled to receive a fractional share of Hard Disk Drive group
stock will instead receive an amount of cash based on the closing price of Hard
Disk Drive group stock on the date the tracking stock proposal is implemented.

If the tracking stock proposal is implemented, your rights as stockholders
will be governed by Delaware law, the restated certificate of incorporation and
our amended by-laws which have been filed with the SEC. The restated
certificate of incorporation contains the terms of the DLT & Storage Systems
group stock and the Hard Disk Drive group stock. Accordingly, you should
carefully read the restated certificate of incorporation attached as Annex I.

If the tracking stock proposal is not approved, our existing common stock
will not be changed into DLT & Storage Systems group stock and Hard Disk Drive
group stock.

If the tracking stock proposal is approved, we plan to implement the
proposal by filing the restated certificate of incorporation with the Secretary
of State of the State of Delaware. We presently anticipate that this filing
will be made as soon as practicable after the special meeting. No state or
federal regulatory approvals are required for the consummation of the tracking
stock proposal.

Our board of directors may decide not to implement the tracking stock
proposal for any reason at any time prior to the filing of the restated
certificate of incorporation with the Secretary of State of the State of
Delaware, either before or after stockholder approval.

Background of and Reasons for the Tracking Stock Proposal

Our board of directors approved the tracking stock proposal following its
review of various alternatives for enhancing the overall return to our
stockholders and for supporting our strategic objectives. Our board of
directors believes that the historical price performance of our existing common
stock has been more closely linked to the Hard Disk Drive group and fails to
reflect adequately the value of the DLT & Storage Systems group. As a result,
our stockholders have been unable to realize the full value of their shares.

At the same time, our board of directors recognized that our current capital
structure impedes our ability to execute our strategic objectives and to
further enhance shareholder value. Our management
has adopted a broad strategy focused on accelerating the growth of the DLT &
Storage Systems group's DLTtape and storage systems business and strengthening
the Hard Disk Drive group's position in the hard disk drive market. This
strategy focuses primarily on:

. extending the DLT & Storage Systems group's leading positions in the tape
drive and tape library markets;

. leveraging our strength and expertise in storage device sub-system and
system technology to offer total storage solutions with increased
functionality and performance; and

. maintaining the Hard Disk Drive group's leading position in the desktop
hard disk drive market and establishing leadership in the network server
and workstation market.

To be successful in the execution of this strategy, we need to:

. raise funds more cost effectively in the capital markets;

. facilitate strategic acquisitions through the issuance of equity
securities; and

. attract and retain key personnel to advance the growth of Quantum as a
whole.

The failure of the financial markets to value accurately the businesses of each
group represents a significant impediment to the execution of this strategy.

We expect that the tracking stock proposal should encourage proper valuation
of the businesses of each of the groups. The proposal is designed to highlight
the separate performance of each of the DLT & Storage Systems group and the
Hard Disk Drive group. The value of each class of tracking stock is intended to
be based on the performance of

22
<PAGE>

the business to which it relates and influenced by the factors that affect the
value of common stock generally, including earnings, growth prospects and
comparable valuations. The tracking stock proposal will also encourage proper
valuation of the groups by providing stockholders, analysts and other market
participants with separate financial and other information to evaluate the
respective businesses.

At a meeting held on October 20, 1998, our board of directors discussed with
our management a variety of structural alternatives designed to enhance the
value of the existing common stock to our
stockholders and address our core strategy of building a more diversified
storage business. In this discussion, our management evaluated the effect that
each alternative would have on our ability to:

. raise funds in the capital markets;

. create a more valuable currency for strategic acquisitions; and

. attract and retain key personnel to advance the growth of Quantum.

Following this discussion, our board of directors authorized management to
continue its review of the alternatives. On January 29, 1999, our board of
directors again met with management in order to formally evaluate the various
strategies for enhancing shareholder value and advancing our strategic goals.
Among the alternatives considered by our board of directors were:

. the preservation of our current equity and operating structure;

. the tracking stock proposal; and

. the creation of separate equity securities of subsidiaries.

Because the preservation of the current equity and operating structure would
not allow proper valuation of the DLT & Storage Systems group's business, our
board concluded that the tracking stock proposal would be most likely to
enhance shareholder value and address our strategic objectives. In reaching its
conclusion, our board of directors consulted with Quantum's financial advisors,
legal counsel and independent accountants.

On March 24, 1999, our board of directors confirmed its prior conclusions
concerning alternatives available to Quantum and identified the following as
the advantages of the tracking stock proposal:

. The creation of two classes of tracking stock intended to reflect
separately the performance of the DLT & Storage Systems group and the
Hard Disk Drive group should increase shareholder value by more
specifically tracking the earnings, cash flows, growth prospects and
investment results of each group. The issuance of DLT & Storage Systems
group stock should result in broader and more in-depth equity coverage of
the DLT & Storage Systems group by financial analysts. As a result,
investors should better understand the DLT & Storage Systems group and
Quantum as a whole;

. We expect that holders of Hard Disk Drive group stock and DLT & Storage
Systems group stock could be separate and distinct investor groups;

. The creation of two classes of tracking stock should enhance the ability
of each group and its management to focus on that group's business
strategy and financial model. At the same time, we will maintain a
cohesive corporate identity and culture through incentive-based
compensation which permits us to provide employees with participation in
the long-term growth and financial success of Quantum as a whole;

. The tracking stock proposal, in contrast to other alternatives, will
retain for us the advantages of doing business as a single company and
allow each group to capitalize on relationships with the other group. As
part of one company, each group will be in a position to benefit from
cost savings and synergies with the other compared to the costs each
group would incur if it operated separately. As part of a single
organization, we expect to incur savings in corporate overhead expenses
while preserving the benefits of credit availability and, more
importantly, a shared strategy;

. The availability of two different equity securities will enhance our
financial and strategic flexibility to raise capital for the DLT &
Storage Systems group and the Hard

23
<PAGE>

Disk Drive group and to engage in mergers, acquisitions, strategic
investments, capital restructurings and other transactions affecting
either group. In the ordinary course of business, our board of directors
may consider these transactions from time to time but it has no current
plans or intentions with respect to any specific transaction; and

. The tracking stock proposal retains future restructuring flexibility by
preserving our ability to undertake future capital restructuring and
asset segmentation as well as to modify our capital structure.

Our board of directors also considered the following potential disadvantages
of the tracking stock proposal:

. The tracking stock proposal results in a complex capital structure that
may not be well-understood by investors and thus could inhibit the
efficient valuation of either or both classes of tracking stock;

. The potential diverging or conflicting interests of the two groups and
the issues that could arise in resolving any conflicts;

. Investors in DLT & Storage Systems group stock and Hard Disk Drive group
stock will be exposed to the risks of our consolidated businesses and
liabilities because both groups remain legally a part of Quantum;

. The market values of the DLT & Storage Systems group stock and the Hard
Disk Drive group stock could be affected by market reaction to decisions
by our board of directors and management that investors perceive to
affect differently one class of tracking stock compared to the other;
these decisions could include decisions regarding the allocation of
assets, expenses, liabilities and corporate opportunities and financing
resources between the groups;

. The possible inability to use the pooling method of accounting in
connection with future acquisitions using Hard Disk Drive group stock,
and the possible inability or increased difficulty of receiving a ruling
from the Internal Revenue Service in connection with a proposed
acquisition to be effected using either DLT & Storage Systems group stock
or Hard Disk Drive group stock; and

. The uncertain tax treatment of tracking stock under current law, as well
as the recent proposal by the Clinton Administration to impose a
corporate level tax on the issuance of stock similar to the DLT & Storage
Systems group stock and the Hard Disk Drive group stock, could require us
to change our capital structure after their issuance to avoid adverse tax
consequences.

Our board of directors determined that on balance the potential advantages
of the tracking stock proposal outweigh the potential disadvantages and
concluded that the tracking stock proposal is advisable and in the best
interests of our company and our stockholders.

Recommendation of the Board of Directors

Our board of directors has carefully considered the tracking stock proposal
and believes that the approval of the tracking stock proposal by the
stockholders is advisable and in the best interests of our company and our
stockholders. Our board of directors unanimously recommends that you approve
the tracking stock proposal.

Management and Allocation Policies

Because the DLT & Storage Systems group and the Hard Disk Drive group will
each be a part of a single company, we have carefully considered a number of
issues with respect to the financing of the DLT & Storage Systems group and the
Hard Disk Drive group, competition between groups, inter-group business
transactions, access to technology and know-how, corporate opportunities and
the allocation of debt, corporate overhead, interest, taxes and other support
activities between the two groups. Our board of directors and management have
established policies designed to accomplish the fundamental objective of the
tracking stock proposal, which is to highlight the separate performance of each
of the DLT & Storage Systems group and the Hard Disk Drive group and to allow
each group to focus on its own business strategy and financial model. These
policies establish guidelines to help us to allocate costs and charges between
the two groups on an objective basis and to ensure that transactions between
the DLT & Storage Systems group and the Hard Disk Drive group are made on terms
that approximate the terms that could be obtained from unaffiliated third
parties.

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<PAGE>

Policies Subject to Change Without Stockholder Approval

We have summarized our management and allocation policies below. We are not
requesting stockholder approval of these policies.

Our board of directors may modify or rescind these policies, or may adopt
additional policies, in its sole discretion without stockholder approval.
However, our board of directors has no present intention to do so. A decision
to modify or rescind these policies, or adopt additional policies, could have
different effects upon holders of DLT & Storage Systems group stock and holders
of Hard Disk Drive group stock or could result in a benefit or detriment to one
class of stockholders compared to the other class. Our board of directors would
make any such decision in accordance with its good faith business judgment that
such decision is in the best interests of our company and all of our
stockholders as a whole.

Fiduciary and Management Responsibilities

Because the DLT & Storage Systems group and the Hard Disk Drive group will
continue to be a part of a single company, our directors and officers will have
the same fiduciary duties to holders of DLT & Storage Systems group stock and
the Hard Disk Drive group stock that they currently have to the holders of our
existing common stock. Under Delaware law, absent an abuse of discretion, a
director or officer will be deemed to have satisfied his or her fiduciary
duties to our company and our stockholders if that person is disinterested and
acts in accordance with his or her good faith business judgment in the
interests of our company and all of our stockholders as a whole. Our board of
directors and our Chief Executive Officer, in establishing policies with regard
to intracompany matters such as business transactions between groups and
allocations of assets, liabilities, debt, corporate overhead, taxes, interest,
corporate opportunities and other matters, will consider various factors and
information which could benefit or cause detriment to the stockholders of the
respective groups and will make determinations in the best interests of our
company and all of our stockholders as a whole. Our board of directors
currently intends to follow a policy that transactions and transfers between
groups be made on a fair value basis. Fair value approximates the terms and
conditions that would be negotiated between third parties in an arm's length
transaction. However, our board of directors could modify this policy without
stockholder approval if it deems a modification to be in the interests of our
company and our stockholders as a whole.

Because the tracking stock proposal will result in no change in our
corporate structure, Michael A. Brown, the Chairman of the Board of Directors
and Chief Executive Officer, will have the same duties and responsibilities for
the management of our assets and businesses which comprise the DLT & Storage
Systems group and the Hard Disk Drive group following the implementation of the
tracking stock proposal as he has now. The individuals named below will hold
the positions listed next to their names and will continue to have the same
general responsibilities following the implementation of the tracking stock
proposal as they have now. The costs attributable to their responsibilities
will be allocated as discussed below under "--Financial Statements; Allocation
Matters--Support Activities."

<TABLE>
<CAPTION>
Officer Position
------- --------
<C> <S>
Michael A. Brown.... Chairman of the Board and Chief Executive Officer
Richard L. Clemmer.. Executive Vice President, Finance, Chief Financial
Officer and Secretary
Curt Francis........ Vice President, Corporate Development
Jerald L. Maurer.... Executive Vice President, Human Resources, Real Estate,
Corporate Services
Peter van
Cuylenburg......... President, the DLT & Storage Systems group
John J. Gannon...... President, the Hard Disk Drive group
</TABLE>

Our Chief Executive Officer, with the approval of our board of directors,
has designated separate management teams for each of the DLT & Storage Systems
group and the Hard Disk Drive group to ensure that the efforts of each team of
managers are focused on the business and operations for which they have
responsibility. These individuals are named in "Business of the DLT & Storage
Systems group--Management" and "Business of the Hard Disk Drive group--
Management."

25
<PAGE>

Tracking Stock Ownership of Directors and Officers

As a policy, our board of directors will periodically monitor the ownership
of shares of DLT & Storage Systems group stock and shares of Hard Disk Drive
group stock by our directors and officers and our option grants to them so that
their interests are generally aligned with the two classes of tracking stock
and with their duty to act in the best interests of our company and our
stockholders as a whole. However, because of the anticipated differences in
trading values between the DLT & Storage Systems group stock and the Hard Disk
Drive group stock, the relative values of their interests in the two tracking
stocks will vary significantly. Accordingly, it is possible that they could
have an incentive to favor one group over the other because of the relative
values of their interests.

Financing Activities

We will continue to manage most financial activities on a centralized basis.
These activities include the investment of surplus cash, the issuance and
repayment of short-term and long-term debt, the issuance and repurchase of
common stock and the issuance and repurchase of any preferred stock. If we
transfer cash or other property allocated to one
group to the other group, we will account for that transfer in one of the
following ways:

. As a reallocation of "pooled" debt or preferred stock, as described under
"Company Debt and Preferred Stock" below;

. As a short-term or long-term loan between groups, or as a repayment of a
previous borrowing, as described under "Inter-group Loans" below; or

. As a sale of assets between groups.

Our board of directors has not adopted specific criteria to determine which
of the foregoing will be applied to a particular transfer of cash or property
from one group to the other. Our board of directors will make these
determinations, either in specific instances or by setting generally applicable
policies, in the exercise of its business judgment. These determinations will
be based on all relevant circumstances, including the financing needs and
objectives of the receiving group, the investment objectives of the
transferring group, the availability, cost and time associated with alternative
financing sources, prevailing interest rates and general economic conditions.
We will make all transfers of assets from one group to the other on a fair
value basis for the foregoing purposes, as determined by our board of
directors. However, that policy is subject to change by our board of directors
without stockholder approval. For additional information on our policy
regarding asset transfers between groups, see "--Transfers of Assets Between
Groups."

Although we may allocate our debt and preferred stock between groups, the
debt and preferred stock will remain our obligations and all of our
stockholders will be subject to the risks associated with those obligations.
For additional information on these risks, see "Risk Factors--You will remain
stockholders of one company; and, therefore, financial effects on one group
could adversely affect the other."

Company Debt and Preferred Stock. We will allocate our debt between the
groups or, if we so determine, in its entirety to a particular group. We will
allocate preferred stock, if issued, in a similar manner. We refer to debt and
preferred stock allocated between groups as being "pooled."

Cash allocated to one group that is used to repay pooled debt or redeem
pooled preferred stock will decrease that group's allocated portion of the
pooled debt or preferred stock. Cash or other property allocated to one group
that is transferred to the other group will, if so determined by our board of
directors, decrease the transferring group's allocated portion of the pooled
debt or preferred stock and, correspondingly, increase the recipient group's
allocated portion of the pooled debt or preferred stock.

Pooled debt will bear interest for group financial statement purposes at a
rate equal to the weighted average interest rate of the debt calculated on a
quarterly basis and applied to the average pooled debt balance during the
period. Preferred stock, if issued and if pooled in a manner similar to the
pooled debt, will bear dividends for group financial statement purposes at a
rate based on the weighted average dividend rate of the preferred stock
similarly calculated and applied. Any expense related to increases in pooled
debt or preferred stock will be reflected in the weighted average interest or
dividend rate of such pooled debt or preferred stock as a whole.
26
<PAGE>

If we allocate debt for a particular financing in its entirety to one group,
that debt will bear interest for group financial statement purposes at the rate
that we determine. If we allocate preferred stock in its entirety to one group,
we will charge the dividend cost to that group in a similar manner. If the
interest or dividend cost is higher than our actual cost, the other group will
receive a credit for an amount equal to the difference as compensation for the
use of our credit capacity. Any expense related to debt or preferred stock that
is allocated in its entirety to a group will be allocated in whole to that
group.

Inter-group Loans. Cash or other property that we allocate to one group that
is transferred to the other group, could, if so determined by our board of
directors, be accounted for either as a short-term loan or as a long-term loan.
Short-term loans and, unless our board of directors determines otherwise, long-
term loans will bear interest at a rate equal to the weighted average interest
rate of our pooled debt. If we do not have any pooled debt, our board of
directors will determine the rate of interest for such loan. Our board of
directors will establish the terms on which long-term loans between the groups
will be made, including interest rate if not based on our weighted average
interest rate, amortization schedule, maturity and redemption terms.

Equity Issuances and Repurchases and Dividends. We will reflect all
financial effects of issuances and repurchases of shares of DLT & Storage
Systems group stock or shares of Hard Disk Drive group stock entirely in the
financial statements of that group. We will reflect financial effects of
dividends or other distributions on, and purchases of, shares of DLT & Storage
Systems group stock or Hard Disk Drive group stock entirely in the respective
financial statements of the DLT & Storage Systems group or the Hard Disk Drive
group.

Competition Between Groups

Neither the DLT & Storage Systems group nor the Hard Disk Drive group will
engage in the principal business of the other, except for joint transactions
with each other. The DLT & Storage Systems group's principal business is the
design, manufacture and sale of DLTtape drives and media and storage systems
and subsystems, including tape libraries and network attached storage
appliances. The Hard Disk Drive group's principal business is the design,
manufacture and sale of hard disk drives that are incorporated as a component
in a system, subsystem or appliance. Our board of directors may designate one
or more additional businesses as principal businesses of either the DLT &
Storage Systems group or the Hard Disk Drive group in the future.

Joint transactions may include joint ventures or other collaborative
arrangements to develop, market, manufacture, sell and support new products and
services. Third parties may also participate in joint transactions. The terms
of any joint transactions will be determined by our Chief Executive Officer or,
in appropriate circumstances, our board of directors.

With the approval of our Chief Executive Officer or, in appropriate
circumstances, our board of directors, the groups may engage in indirect
competition in their principal businesses from time to time. This competition
could involve, for example:

. The Hard Disk Drive group selling its products to a third party for use
in the third party's products which compete with the DLT & Storage
Systems group 's products;

. The DLT & Storage Systems group's inclusion of a third party's products
rather than the Hard Disk Drive group's products, in the DLT & Storage
Systems group's products; or

. Quantum licensing technology to a third party that is a competitor of one
group.

Our Chief Executive Officer or our board of directors will permit indirect
competition between the groups based on his or its good faith business judgment
that such competition is in the best interests of our company and all of our
stockholders as a whole. In addition, the groups may compete in a business
which is not a principal business of the other group.

Transfers of Assets Between Groups

The restated certificate of incorporation permits the transfer of assets
between groups without stockholder approval. Our board of directors has
determined that all such transfers will be made at

27
<PAGE>

fair value, as determined by our board of directors. However, that policy is
subject to change by our board of directors without stockholder approval. The
consideration for such transfers may be paid by one group to the other in cash
or other consideration, as determined by our board of directors.

Our board of directors has adopted specific policies for the sale of
products and services between groups and joint transactions with each other and
third parties as set forth below.

Sales of Products and Services Between Groups. One group will sell products
or services to the other group on terms that would be available from
unaffiliated third parties in commercial transactions. If the terms of a
transaction are not available from a third party, the purchasing group will pay
for such products and services at fair value. However, that policy is subject
to change by our board of directors without stockholder approval.

Joint Transactions. The groups may from time to time engage in transactions
jointly, including with third parties. Research and development and other
services performed by one group for a joint venture or other collaborative
arrangement will be charged at fair value. However, that policy is subject to
change by our board of directors without stockholder approval.

Access to Technology and Know-How

Each group will have access to all of our technology and know-how, excluding
products and services of the other group, that may be useful in that group's
business, subject to obligations and
limitations applicable to Quantum and to such exceptions that our board of
directors may determine. The groups will consult with each other on a regular
basis concerning technology issues that affect both groups.

Review of Corporate Opportunities

Our board of directors will review any significant matter which involves the
allocation of a corporate opportunity to either the DLT & Storage Systems group
or the Hard Disk Drive group or in part to the DLT & Storage Systems group and
in part to the Hard Disk Drive group. Delaware law requires our board of
directors to make its determination with regard to the allocation of any such
opportunity and the benefit of that opportunity in accordance with their good
faith business judgment of the best interests of our company and all of our
stockholders as a whole. Among the factors that our board of directors may
consider in making this allocation is:

. whether a particular corporate opportunity is principally related to the
business of the DLT & Storage Systems group or the Hard Disk Drive group,
as described under "--Competition Between Groups";

. whether one group, because of its managerial or operational expertise,
will be better positioned to undertake the corporate opportunity; and

. existing contractual agreements and restrictions.

Financial Statements; Allocation Matters

We will prepare financial statements in accordance with generally accepted
accounting principles, consistently applied, for the DLT & Storage Systems
group and the Hard Disk Drive group. These financial statements, taken
together, will comprise all of the accounts included in our consolidated
financial statements. The financial statements of each of the DLT & Storage
Systems group and the Hard Disk Drive group will reflect the financial
condition, results of operations and cash flows of the businesses included in
the corresponding group.

Group financial statements will also include allocated portions of our debt,
interest, support activities and taxes. We will make these allocations for the
purpose of preparing each group's financial statements; however, holders of DLT
& Storage Systems group stock and the Hard Disk Drive group stock will continue
to be subject to all of the risks associated with an investment in our company
and all of our businesses, assets and liabilities. For additional information
on these risks, see "Risk Factors--You will remain stockholders of one company
and, therefore, financial effects on one group could adversely affect the
other."

In addition to allocating debt and interest as described above under "--
Financing Activities" and assets as described above under "--Transfers of
Assets Between Groups," our board of directors has

28
<PAGE>

adopted the following allocation policies, each of which is reflected in the
financial statements of the respective groups included in this proxy statement:

. Support Activities. We will directly charge specifically identified costs
for certain support activities to the DLT & Storage Systems group and the
Hard Disk Drive group based upon the use of such activities. Where
determinations based on use alone are not practical, we will use other
methods and criteria to provide a reasonable allocation of the cost of
certain other support activities attributable to the groups. Such
allocated support activities include certain selling and marketing,
executive management, human resources, corporate finance, legal and
corporate planning activities.

. Taxes. We will determine the income tax provisions of Quantum and its
subsidiaries which own assets allocated between the groups on a
consolidated basis. We will allocate consolidated income tax provisions
and related tax payments or refunds between the groups based principally
on the taxable income and tax credits directly attributable to each
group. These allocations will reflect each group's contribution, whether
positive or negative, to Quantum's consolidated taxable income and the
consolidated tax liability and tax credit position. We will credit tax
benefits to the group generating those benefits if those benefits can be
used on a consolidated basis. Inter-group transactions will be treated
and taxed as if each group was a stand-alone company.

Current and deferred taxes and taxes payable or refundable allocated to
each group in these historical financial statements differ from those
that would have been allocated to each
group had they filed separate income tax returns.

Dividend Policy

Historically, we have not paid dividends on our existing common stock. We
presently intend to retain all earnings for use in our business and do not
anticipate paying dividends on either the DLT & Storage Systems group stock or
the Hard Disk Drive group stock in the foreseeable future.

Our board of directors does not currently intend to change the above-
described dividend policy but reserves the right to do so at any time based
primarily on the financial condition, results of operations and business
requirements of the respective groups and of Quantum as a whole. Future
dividends on the DLT & Storage Systems group stock and Hard Disk Drive group
stock will be payable when, as and if declared by our board of directors out of
the lesser of (1) all funds of Quantum legally available for the payment of
dividends and (2) the amount calculated under the definition of that group's
available dividend amount contained in the restated certificate of
incorporation in Annex I. We encourage you to carefully read these definitions.
Each group's available dividend amount is intended to be similar to the amount
that would be legally available for the payment of dividends on the stock for
that group under Delaware law if that group were a separate company. See "--
Description of DLT & Storage Systems Group Stock and Hard Disk Drive Group
Stock--Dividends."

In making its dividend decisions regarding the DLT & Storage Systems group
stock and the Hard Disk Drive group stock, our board of directors will rely on
the respective financial statements of the DLT & Storage Systems group and the
Hard Disk Drive group. See the financial statements of the DLT & Storage
Systems group and the Hard Disk Drive group included in this proxy statement.

Description of DLT & Storage Systems Group Stock and Hard Disk Drive Group
Stock

We have summarized below the material terms of the DLT & Storage Systems
group stock and the Hard Disk Drive group stock. The summary is not complete.
We encourage you to read the restated certificate of incorporation which is
attached as Annex I.

Authorized and Outstanding Shares

Our existing certificate of incorporation authorizes us to issue 504 million
shares of stock, consisting of 500 million shares of common stock, par value
$0.01 per share, and 4 million shares of preferred stock, par value $0.01 per
share. Of the 4 million shares of preferred stock, our board of directors has
designated a total of 1 million shares of

29
<PAGE>

Series A Junior Participating Preferred Stock in connection with our existing
stockholder rights plan. Our board of directors may issue shares of preferred
stock in series, without stockholder approval. As of June 4, 1999,
approximately 167,739,218 shares of existing common stock and no shares of
preferred stock were issued and outstanding.

The restated certificate of incorporation will authorize us to issue 1.62
billion shares of stock as follows: 1 billion shares of a class of common
stock, designated as Quantum Corporation--the DLT & Storage Systems group
Common Stock, .6 billion shares of a class of common stock, designated as
Quantum Corporation--the Hard Disk Drive group Common Stock, and 20 million
shares of preferred stock. Shares of each class of stock will have a par value
of $0.01 per share. We will be able to issue shares of preferred stock in
series, without stockholder approval. Of the 20 million authorized shares of
preferred stock, our board of directors has designated a total of 1,600,000
shares of two series of junior participating preferred stock in connection with
our restated stockholder rights plan. For additional information on our
restated rights plan, see "--Restated Rights Agreement."

As a result of the tracking stock proposal, assuming the number of shares of
existing common stock then outstanding is the same as the number outstanding on
June 4, 1999, 167,739,218 shares of DLT & Storage Systems group stock and
83,869,609 shares of the Hard Disk Drive group stock will be issued and
outstanding.

Reasons for Increase in Authorized Common Stock

Our board of directors believes that an increase in the number of authorized
shares of common stock at this time is in the best interests of our company so
that we can implement the tracking stock proposal and have available the number
of shares needed for a possible future conversion, dividends, acquisitions,
capital raising, our restated stockholder rights plan and employee benefit
plans.

The authorization of at least 167,739,218 shares of DLT & Storage Systems
group stock and at least 83,869,609 shares of Hard Disk Drive group stock is
needed for the tracking stock proposal to be implemented. In addition, Quantum
has outstanding $288 million principal amount of 7% convertible subordinated
notes due 2004, which are convertible at the option of the holder at any time
prior to maturity into shares of our existing common stock at a conversion
price of $46.325. Following the implementation of the tracking stock proposal,
each of those notes will be convertible into shares of DLT & Storage Systems
group stock and shares of Hard Disk Drive group stock. The number of shares of
DLT & Storage Systems group stock and Hard Disk Drive group stock into which
each note will be convertible is equal to the numbers of such shares which the
holder of the note would receive under the tracking stock proposal had the note
been converted immediately prior to the implementation of the tracking stock
proposal. We have also reserved 25,940,985 shares of our existing common stock
for issuance under our employee benefit plans. For additional information on
the effect of the tracking stock proposal on the outstanding options and
convertible notes, see "--Effect on Existing Options and Convertible Notes."

Further, as described under "--Conversion and Redemption," our board of
directors has the right to convert one class of tracking stock into the other
at a 10% premium for the first five years following the implementation of the
tracking stock proposal and without premium after that five year period and in
certain other circumstances. The number of shares issuable in a conversion will
vary based on the relative market values of the two classes of tracking stock
and the number of outstanding shares of tracking stock being converted.

Our board of directors may also pick a stock dividend in one class of
tracking stock on that class of tracking stock. If our board of directors
determines that a conversion or a stock dividend is in the best interests of
Quantum, but at that time sufficient authorized shares of tracking stock are
not available, our stockholders would be required to approve an amendment to
the restated certificate of incorporation.

Other than the issuance of shares under our outstanding convertible
subordinated notes and our employee benefit plans, we have no present
understanding or agreement for the issuance of any additional shares of DLT &
Storage Systems group stock or Hard Disk Drive group stock. Although our board
of directors has no present intention of doing

30
<PAGE>

so, the additional shares that would be authorized for issuance if the tracking
stock proposal is implemented could be issued in one or more transactions that
would make a takeover of Quantum more difficult and, therefore, less likely,
even though a takeover might be financially beneficial to our company and our
stockholders. For additional information on provisions of Delaware law, our
restated certificate of incorporation, our by-laws and our restated rights
agreement that might defer a takeover, see "--Certain Anti-Takeover Provisions
of Delaware Law and the Restated Certificate of Incorporation, the By-laws and
the Restated Rights Agreement." We have no knowledge of any person or entity
that intends to seek a controlling interest in our company or to make a
takeover proposal.

We may issue the authorized but unissued shares of DLT & Storage Systems
group stock and Hard Disk Drive group stock for any proper corporate purpose,
which could include any of the purposes set forth above. We will not solicit
the approval of our stockholders for the issuance of additional authorized
shares of DLT & Storage Systems group stock or Hard Disk Drive group stock
unless our board of directors believes that approval is advisable or is
required by New York Stock Exchange regulations or Delaware law.

Dividends

Dividends on our existing common stock are limited to our legally available
funds under Delaware law and subject to the prior payment of dividends on any
preferred stock. Dividends on the DLT & Storage Systems group stock and the
Hard Disk Drive group stock will be subject to the same limitations as
dividends on our existing common stock. Dividends on the DLT & Storage Systems
group stock and dividends on the Hard Disk Drive group stock will also be
limited to an amount not greater than the available dividend amount for the
relevant group.

Under Delaware law, the amount of legally available funds for dividends is
determined on the basis of our entire company, and not only the respective
groups. As a result, the amount of legally available funds will reflect the
amount of any net losses of each group, any distributions on DLT & Storage
Systems group stock, Hard Disk Drive group stock or any preferred stock and any
repurchases of DLT & Storage Systems group stock, Hard Disk Drive group stock
or preferred stock at a price per share greater than par value. Dividend
payments on the DLT & Storage Systems group stock and on the Hard Disk Drive
group stock could be precluded because legally available funds are not
available under Delaware law, even though the available dividend amount test
for the particular relevant group was met. We can not assure you that there
will be an available dividend amount for either group.

Accordingly, the payment of dividends on either group's stock will be
subject to the prior payment of dividends on any outstanding shares of
preferred stock and the limitations described above. Subject to these
restrictions, our board of directors will be able, in its sole discretion, to
declare and pay dividends exclusively on the DLT & Storage Systems group stock,
exclusively on the Hard Disk Drive group stock or on both, in equal or unequal
amounts without having to take into account the relative available dividend
amounts for the two groups, the amount of prior dividends declared on either
class, the respective voting or liquidation rights of either class or any other
factor.

Conversion and Redemption

Our existing certificate of incorporation currently does not provide for
either mandatory or optional conversion or redemption of our existing common
stock. The tracking stock proposal will permit the conversion or redemption of
the DLT & Storage Systems group stock and the Hard Disk Drive group stock as
described below.

Mandatory Dividend, Redemption or Conversion of Tracking Stock If
Disposition of Group Assets Occurs. If we dispose of all or substantially all
of the properties and assets of either group, we are required to take action
that returns the value of those assets to the holders of that group's tracking
stock. That action could take the form of a cash dividend, a redemption of
shares or a conversion into the other group's tracking stock.

Accordingly, if we sell all or substantially all of one group's assets in a
transaction other than one described below under "--Exceptions to the Dividend,
Redemption or Conversion Requirement if a Disposition Occurs," we will:

. pay a dividend to the holders of shares of that group's tracking stock in
cash and/or

31
<PAGE>

securities or other property having a fair value equal to the net proceeds
of the disposition; or

. (1) if the disposition involves all of the properties and assets, redeem
all outstanding shares of that group's tracking stock in exchange for
cash and/or securities or other property having a fair value equal to the
net proceeds of the disposition; or

(2) if the disposition involves substantially all, but not all, of the
properties and assets, redeem a number of whole shares of that group's
tracking stock in exchange for cash and/or securities or other property
having a fair value equal to the net proceeds of the disposition; the
number of shares so redeemed will have in the aggregate an average market
value, during the period of ten consecutive trading days beginning on the
26th trading day following the disposition date, closest to the net
proceeds; or

. convert each outstanding share of that group's tracking stock into a
number of shares of the other group's tracking stock equal to 110% of the
ratio of the average market value of one share of stock of the group
whose assets are disposed to the average market value of one share of
stock of the other group during the 10-trading day period beginning on
the 26th trading day following the disposition date. However, if the
disposition is consummated after the fifth anniversary of the
implementation of the tracking stock proposal, the number of shares to be
received as a result of a conversion will equal 100% of the applicable
ratio.

We may only pay a dividend or redeem shares of tracking stock if we have
legally available funds under Delaware law and the amount to be paid to holders
is less than or equal to the available dividend amount for the group. We will
pay the dividend or complete the redemption or conversion on or prior to the
95th trading day following the disposition date.

For purposes of determining whether a disposition has occurred,
"substantially all of the properties and assets" attributed to either group
means a portion of the properties and assets:

. that represents at least 80% of the then fair value of the properties and
assets attributed to that group; or

. from which were derived at least 80% of the aggregate revenues of that
group for the immediately preceding twelve fiscal quarterly periods.

The "net proceeds" of a disposition means an amount equal to what remains of
the gross proceeds of the disposition after any payment of, or reasonable
provision is made as determined by our board of directors for:

. any taxes payable by us, or which would have been payable but for the
utilization of tax benefits attributable to the group not subject to the
disposition, in respect of the disposition or in respect of any resulting
dividend or redemption;

. any transaction costs, including, without limitation, any legal,
investment banking and accounting fees and expenses; and

. any liabilities of or attributed to the group whose assets are disposed,
including, without limitation, any liabilities for deferred taxes, any
indemnity or guarantee obligations incurred in connection with the
disposition or otherwise, any liabilities for future purchase price
adjustments and any preferential amounts plus any accumulated and unpaid
dividends in respect of the preferred stock attributed to that group.

We may elect to pay the dividend or redemption price either in the same form
as the proceeds of the disposition were received or in any other combination of
cash, securities or other property that our board of directors or, in the case
of securities that have not been publicly traded for a period of at least 15
months, an independent investment banking firm, determines will have an
aggregate market value of not less than the fair value of the net proceeds.

The following illustration demonstrates the provisions requiring a mandatory
dividend, redemption or conversion if a disposition occurs

32
<PAGE>

prior to the fifth anniversary of the implementation of the tracking stock
proposal.

. If 160 million shares of DLT & Storage Systems group stock and 80 million
shares of Hard Disk Drive group stock were outstanding,

. the net proceeds of the disposition of substantially all, but not all, of
the assets of the Hard Disk Drive group equals $1.5 billion,

. the average market value of the Hard Disk Drive group stock during the
10-trading day valuation period was $20 per share and

. the average market value of the DLT & Storage Systems group stock during
the same valuation period was $40 per share,

then we could do any of the following:

(1) pay a dividend to the holders of shares of Hard Disk Drive group stock
equal to:

<TABLE>
<S> <C> <C>
net proceeds = $1.5 billion
- ----------------------------------------------- -----------------
number of outstanding shares of Hard Disk Drive 80 million shares
group stock
= $18.75 per share
</TABLE>

(2) redeem for $20 per share a number of shares of Hard Disk Drive group stock
equal to:

<TABLE>
<S> <C> <C>
net proceeds = $1.5 billion
- --------------------------------------------------- -----------------
average market value of Hard Disk Drive group stock $20 per share
= 75,000,000 shares
</TABLE>

(3) convert each outstanding share of Hard Disk Drive group stock into a number
of shares of DLT & Storage Systems group stock equal to:

<TABLE>
<S> <C> <C> <C> <C> <C> <C>
average market
value of
Hard Disk Drive
1.1 x group stock = 1.1 x $20 per share
--------------- -------------
average market $40 per share
value of
DLT &
Storage Systems
group stock
= .55 shares
</TABLE>

Exceptions to the Dividend, Redemption or Conversion Requirement if a
Disposition Occurs. We are not required to take any of the above actions for
any disposition of all or substantially all of the properties and assets
attributed to either group in a transaction or series of related transactions
that results in our receiving for those properties and assets primarily equity
securities of any entity which:

. acquires those properties or assets or succeeds to the business conducted
with those properties or assets or controls such acquiror or successor;
and

. is primarily engaged or proposes to engage primarily in one or more
businesses similar or complementary to the businesses conducted by that
group prior to the disposition, as determined by our board of directors.

The purpose of this exception is to enable us technically to dispose of
properties or assets of a group to other entities engaged or proposing to
engage in businesses similar or complementary to those of that group without
requiring a dividend on,
or a conversion or redemption of, the class of common stock of that group, so
long as we hold an equity interest in that entity. A joint venture in which we
own a direct or indirect equity interest is an example of such an acquiror. We
are not required to control that entity, whether by ownership or contract
provisions.

We are also not required to effect a dividend, redemption or conversion if
the disposition is:

. of all or substantially all of our properties and assets in one
transaction or a series of related transactions in connection with our
dissolution, liquidation or winding up and the distribution of our assets
to stockholders;

. on a pro rata basis, such as in a spin-off, to the holders of all
outstanding shares of the tracking stock of the group whose assets are
disposed; or

. made to any person or entity controlled by us, as determined by our board
of directors.

Notices If Disposition of Group Assets Occurs. Not later than the 20th
trading day after the consummation of a disposition, we will announce publicly
by press release:

. the estimated net proceeds of the disposition;

. the number of shares outstanding of the tracking stock of the group whose
assets are disposed; and

33
<PAGE>

. the number of shares of that group's tracking stock into or for which
convertible securities are then convertible, exchangeable or exercisable
and the conversion, exchange or exercise price of those convertible
securities.

Not earlier than the 36th trading day and not later than the 40th trading
day after the consummation of the disposition, we will announce publicly by
press release whether we will pay a dividend or redeem shares of tracking stock
with the net proceeds of the disposition or convert the shares of tracking
stock of the group whose assets are disposed into the other groups of tracking
stock.

We will mail to each holder of shares of the group whose assets are disposed
the additional notices and other information required by the restated
certificate of incorporation.

Conversion of Common Stock at Option of Quantum at Any Time. During the five
years following the implementation of the tracking stock proposal, our board of
directors may at any time convert each share of DLT & Storage Systems group
stock into a number of shares of Hard Disk Drive group stock equal to 110% of
the ratio of the average market values of the DLT & Storage Systems group stock
to the Hard Disk Drive group stock over a 20-trading day period. Conversely,
during that period our board of directors may also at any time convert each
share of Hard Disk Drive group stock into a number of shares of DLT & Storage
Systems group stock equal to 110% of the ratio of the average market values of
the Hard Disk Drive group stock to the DLT & Storage Systems group stock over a
20-trading day period. Following the fifth anniversary of the implementation of
the tracking stock proposal, the number of shares to be received as a result of
a conversion will equal 100% of the applicable ratio. This means that the
holders of the tracking stock being converted will not receive any premium in a
conversion. We will calculate the ratio of average market values as of the
fifth trading day prior to the date we mail the conversion notice to holders.

However, if a tax event occurs at any time, a factor of 100% rather than
110% will be applied to the ratio of the average market values. This means that
the holders of the tracking stock being converted will not receive any premium
in a conversion.

"Tax event" means the receipt by our company of an opinion of a tax advisor
that, as a result of:

. any amendment to, or change in, the laws or regulations interpreting the
laws of the United States or any political subdivision or taxing
authority, including any announced proposed change by an applicable
legislative committee or its chair in those laws or by an administrative
agency in those regulations; or

. any official or administrative pronouncement, action or judicial decision
interpreting or applying those laws or regulations,

it is more likely than not that for United States federal income tax purposes:

. Quantum or our stockholders are, or at any time in the future will be,
subject to tax upon the issuance of shares of either DLT & Storage
Systems group stock or Hard Disk Drive group stock; or

. either DLT & Storage Systems group stock or Hard Disk Drive group stock
is not or at any time in the future will not be treated solely as stock
of Quantum.

For purposes of rendering this opinion, the tax advisor will assume that any
legislative or administrative proposals will be adopted or enacted as proposed.

These provisions allow us the flexibility to recapitalize the two tracking
stocks into one class of common stock that would, after the recapitalization,
represent an equity interest in all of our businesses. The optional conversion
or redemption could be exercised at any future time if our board of directors
determines that, under the facts and circumstances then existing, an equity
structure consisting of two tracking stocks was no longer in the best interests
of all of our stockholders. A conversion could be exercised, however, at a time
that is disadvantageous to the holders of one of the tracking stocks. For
additional information on the risks of a conversion and the limited remedies
available to stockholders, see "Risk Factors--Stockholders may not have any
remedies for breach of fiduciary duties if any action by directors and officers
has a disadvantageous effect on either class of tracking stock" and "--Numerous
potential conflicts of interest exist

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<PAGE>

between classes of tracking stock which may be difficult to resolve by our
board of directors or which may be resolved adversely to one of the classes."

Conversion would be based upon the relative market values of the DLT &
Storage Systems group stock and the Hard Disk Drive group stock. Many factors
could affect the market values of the DLT & Storage Systems group stock or the
Hard Disk Drive group stock, including our results of operations and those of
each of the groups, trading volume and general economic and market conditions.
Market values could also be affected by decisions by our board of directors or
our management that investors perceive to affect differently one class of
tracking stock compared to the other. These decisions could include changes to
our management and allocation policies, transfers of assets between groups,
allocations of corporate opportunities and financing resources between the
groups and changes in dividend policies.

The following illustration demonstrates the calculation of the number of
shares issuable upon conversion of one class of common stock into shares of the
other class at our option if:

. a tax event has not occurred,

. five years have not elapsed since the implementation of the tracking
stock proposal,

. 160 million shares of DLT & Storage Systems group stock and 80 million
shares of Hard Disk Drive group stock were outstanding immediately prior
to a conversion,

. the average market value of one share of the Hard Disk Drive group stock
over the 20-trading day valuation period was $20, and

. the average market value of one share of the DLT & Storage Systems group
stock over the same valuation period was $40,

then each share of Hard Disk Drive group stock could be converted into .55
shares of DLT & Storage Systems group stock based on the following calculation:

<TABLE>
<S> <C> <C> <C> <C>
1.1 x $20 = .55 shares
---
$40
</TABLE>

Redemption in Exchange for Stock of Subsidiary. Although we currently have
no intention to do so, our board of directors may redeem on a pro rata basis
all of the outstanding shares of DLT & Storage Systems group stock or Hard Disk
Drive group stock for shares of the common stock of one or more of our wholly-
owned subsidiaries which own all of the assets and liabilities attributed to
the relevant group. We may redeem shares of tracking stock for subsidiary stock
only if we have legally available funds under Delaware law.

As a result of a redemption, holders of each class of tracking stock would
hold securities of separate legal entities operating in distinct lines of
business. This redemption could be authorized by our board of directors at any
time in the future if it determines that, under the facts and circumstances
then existing, an equity structure comprised of the DLT & Storage Systems group
stock and the Hard Disk Drive group stock is no longer in the best interests of
all of our stockholders as a whole.

Selection of Shares for Redemption. If less than all of the outstanding
shares of a class of tracking stock are to be redeemed, we will redeem those
shares proportionately from among the holders of outstanding shares of that
tracking stock or by such method as may be determined by our board of directors
to be equitable.

Fractional Interests; Transfer Taxes. We will not be required to issue
fractional shares of any capital stock or any fractional securities to any
holder of either class of tracking stock upon any conversion, redemption,
dividend or other distribution described above. If a fraction is not issued to
a holder, we will pay cash instead of that fraction.

We will pay all documentary, stamp or similar issue or transfer taxes that
may be payable in respect of the issue or delivery of any shares of capital
stock and/or other securities on conversion or redemption of shares.

Voting Rights

Variable Voting. Currently, holders of our existing common stock have one
vote per share on all matters submitted to stockholders.

Under the restated certificate of incorporation the entire voting power of
our stockholders will be

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<PAGE>

vested in the holders of tracking stock. Holders of the tracking stocks will be
entitled to vote on any matter on which our stockholders are, by law or by the
provisions of the restated certificate of incorporation or our by-laws,
entitled to vote, except as otherwise provided by law, by the terms of any
outstanding preferred stock or by any provision of the restated certificate of
incorporation restricting the power to vote on a specified matter to other
stockholders.

Holders of tracking stock will vote as a single class on each matter on
which holders of common stock are generally entitled to vote.

On all matters as to which both classes of tracking stock will vote together
as a single class:

. each share of DLT & Storage Systems group stock will have one vote; and

. each share of Hard Disk Drive group stock will have a number of votes
equal to the quotient of the average market value of a share of Hard Disk
Drive group stock over the 20-trading day period ending on the 10th
trading day prior to the record date for determining the holders of
tracking stock entitled to vote, divided by the average market value of a
share of DLT & Storage Systems group stock over the same period.

Accordingly, the relative per share voting rights of the DLT & Storage
Systems group stock and the Hard Disk Drive group stock will fluctuate
depending on changes in the relative market values of shares of the classes of
tracking stock.

We expect that, upon implementation of the tracking stock proposal, the DLT
& Storage Systems group stock will have a substantial majority of the voting
power because we expect that the aggregate market value of the outstanding
shares of DLT & Storage Systems group stock will be substantially greater than
the aggregate market value of the outstanding shares of Hard Disk Drive group
stock.

We will set forth the number of outstanding shares of DLT & Storage Systems
group stock and Hard Disk Drive group stock in our Annual Report on Form 10-K
and our Quarterly Reports on Form 10-Q filed under the Securities Exchange Act
of 1934. We will disclose in any proxy statement for a stockholders' meeting
the number of outstanding shares and per share voting rights of the DLT &
Storage Systems group stock and the Hard Disk Drive group stock.

If shares of only one class of tracking stock are outstanding, each share of
that class will have one vote. If either class of tracking stock is entitled to
vote as a separate class with respect to any matter, each share of that class
will, for purpose of such vote, have one vote on such matter.

Fluctuations in the relative voting rights of the DLT & Storage Systems
group stock and the Hard Disk Drive group stock could influence an investor
interested in acquiring and maintaining a fixed percentage of the voting power
of our stock to acquire such percentage of both classes of tracking stock, and
would limit the ability of investors in one class to acquire for the same
consideration relatively more or less votes per share than investors in the
other class.

The holders of DLT & Storage Systems group stock and Hard Disk Drive group
stock will not have any rights to vote separately as a class on any matter
coming before our stockholders, except for the limited class voting rights
provided under Delaware law described below, by New York Stock Exchange rules
or as determined by our board of directors. In addition to the approval of the
holders of a majority of the voting power of all shares of tracking stock
voting together as a single class, the approval of a majority of the
outstanding shares of the DLT & Storage Systems group stock or the Hard Disk
Drive group stock, voting as a separate class, would be required under Delaware
law to approve any amendment to the restated certificate of incorporation that
would change the par value of the shares of the class or alter or change the
powers, preferences or special rights of the shares of the class so as to
affect them adversely. As permitted by Delaware law, the restated certificate
of incorporation will provide that an amendment to the restated certificate of
incorporation that increases or decreases the number of authorized shares of
DLT & Storage Systems group stock or Hard Disk Drive group stock will only
require the approval of the holders of a majority of the voting power of all
shares of tracking stock, voting together as a single class, and will not
require the approval of the holders of the class of tracking stock affected by
the amendment, voting as a separate class.

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<PAGE>

The following illustration demonstrates the calculation of the number of
votes each share of Hard Disk Drive group stock would be entitled on all
matters on which holders of DLT & Storage Systems group stock and Hard Disk
Drive group stock vote as a single class. If the average market value for the
20-trading day valuation period was $20 for the Hard Disk Drive group stock and
$40 for the DLT & Storage Systems group stock, each share of DLT & Storage
Systems group stock would have one vote and each share of Hard Disk Drive group
stock would have 0.5 votes based on the following calculation:

<TABLE>
<S> <C> <C>
$20 = 0.5 votes
---
$40
</TABLE>

Assuming 160 million shares of DLT & Storage Systems group stock and 80 million
shares of Hard Disk Drive group stock were outstanding, the shares of DLT &
Storage Systems group stock would represent 80% of our total voting power and
the shares of Hard Disk Drive group stock would represent 20% of our total
voting power.

Cumulative Voting. Currently, a holder of our existing common stock may, in
the election of directors, cumulate his or her votes in order to give one
candidate a number of votes equal to the number of directors to be elected
multiplied by the number of votes to which such holder's shares are entitled.
We currently have six directors. Alternatively, a holder may distribute such
number of votes among up to the number of directors to be elected. Under the
restated certificate of incorporation, a holder will continue to be able to
cumulate his or her votes in the election of directors following the
implementation of the tracking stock proposal. The total number of votes that a
holder may cumulate will be equal to the number of directors to be elected
multiplied by the total number of votes to which such holder's shares of DLT &
Storage Systems group stock and shares of Hard Disk Drive group stock are
entitled.

Liquidation

Currently, in the event of our liquidation, dissolution or termination after
payment, or provision for payment, of our debts and other liabilities and the
payment of full preferential amounts to which the holders of any preferred
stock are entitled, holders of existing common stock are entitled to share
equally in our remaining net assets.

Under the restated certificate of incorporation, in the event of our
dissolution, liquidation or winding up, the holders of DLT & Storage Systems
group stock and Hard Disk Drive group stock will be entitled to receive our
assets remaining for distribution to holders of common stock on a per share
basis in proportion to the liquidation units per share of such class, after
payment or provision for payment of the debts and other liabilities and full
preferential amounts to which holders of any preferred stock are entitled.

Each share of DLT & Storage Systems group stock will have one liquidation
unit. Each share of Hard Disk Drive group stock will have a number of
liquidation units equal to the quotient of the average market value of a share
of Hard Disk Drive group stock over the 20-trading day period ending on the
40th trading day after the initial issuance of the DLT & Storage Systems group
stock and the Hard Disk Drive group stock under the tracking stock proposal,
divided by the average market value of a share of DLT & Storage Systems group
stock over the same period.

After the number of liquidation units to which each share of Hard Disk Drive
group stock is entitled has been calculated in accordance with this formula,
that number will not be changed without the approval of holders of the class of
common stock adversely affected except as described below. As a result, after
the date of the calculation of the number of liquidation units to which the
Hard Disk Drive group stock is entitled the liquidation rights of the holders
of the respective classes of tracking stock may not bear any relationship to
the relative market values or the relative voting rights of the two classes. We
consider that liquidation is a remote contingency, and our financial advisors
believe that, in general, these liquidation provisions will be immaterial to
trading in the DLT & Storage Systems group stock and the Hard Disk Drive group
stock.

No holder of DLT & Storage Systems group stock will have any special right
to receive specific assets of the DLT & Storage Systems group and no holder of
Hard Disk Drive group stock will have any special right to receive specific
assets of the Hard Disk Drive group in the case of our dissolution, liquidation
or winding up.

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<PAGE>

If we subdivide or combine the outstanding shares of either class of
tracking stock or declare a dividend or other distribution of shares of either
class of tracking stock to holders of that class of tracking stock, the number
of liquidation units of either class of tracking stock will be appropriately
adjusted. This adjustment will be made by our board of directors, to avoid any
dilution in the aggregate, relative liquidation rights of any class of tracking
stock.

Neither a merger nor consolidation of Quantum into or with any other
corporation, nor any sale, transfer or lease of all or any part of our assets,
will, alone, be deemed a liquidation or winding up of Quantum, or cause the
dissolution of Quantum, for purposes of these liquidation provisions.

Determinations by the Board of Directors

Any determinations made in good faith by our board of directors under any
provision described under "Description of DLT & Storage Systems group stock and
Hard Disk Drive group stock," and any determinations with respect to any group
or the rights of holders of shares of either class of common stock, will be
final and binding on all of our stockholders, subject to the rights of
stockholders under applicable Delaware law and under the federal and state
securities laws.

Preemptive Rights

Neither the holders of the DLT & Storage Systems group stock nor the holders
of the Hard Disk Drive group stock will have any preemptive rights or any
rights to convert their shares into any other securities of Quantum.

Restated Rights Agreement

We have issued existing preferred share purchase rights to all holders of
our existing common stock under a rights agreement dated as of July 28, 1998
between our company and Harris Trust and Savings Bank, as rights agent. Each
existing right entitles the holder to purchase shares of Series A Junior
Participating Preferred Stock under conditions described in the existing rights
agreement. The existing rights expire on August 4, 2008.

Pursuant to the tracking stock proposal, our board of directors has
determined to amend and restate the existing rights agreement and to exchange
for all existing rights:

. one right for each share of DLT & Storage Systems group stock, which will
allow holders to purchase shares of a newly designated Series B Junior
Participating Preferred Stock of Quantum if a "distribution date" occurs;
and

. one right for each share of Hard Disk Drive group stock, which will allow
holders to purchase shares of a newly designated Series C Junior
Participating Preferred Stock of Quantum if a "distribution date" occurs.

We refer to the DLT & Storage Systems group rights and the Hard Disk Drive
group rights as the "rights." The restated rights agreement contains provisions
designed to, among other things:

. reflect our new equity structure; and

. reset the prices at which rights issued under the restated rights
agreement may be exercised for shares of participating preferred stock.

A "distribution date" will occur upon the earlier of:

. the tenth day after a public announcement that a person or group of
affiliated or associated persons other than us or our employee benefit
plans (an "acquiring person") has acquired beneficial ownership of
(1) 20% or more of the shares of DLT & Storage Systems group stock then
outstanding or (2) 20% or more of the shares of Hard Disk Drive group
stock then outstanding; or

. the tenth business day or a later day determined by our board of
directors following the commencement of a tender or exchange offer that
would result in such person or group beneficially owning such number of
shares.

Until the distribution date, the rights will be transferred only with the
common stock.

Following the distribution date, holders of rights will be entitled to
purchase from us:

. in the case of a DLT & Storage Systems group right, one one-thousandth of
a share

38
<PAGE>

of Series B Junior Participating Preferred Stock at a purchase price to be
determined by our board of directors, subject to adjustment; and

. in the case of an Hard Disk Drive group right, one one-thousandth of a
share of Series C Participating Junior Preferred Stock at a purchase
price to be determined by our board of directors, subject to adjustment.

An existing right entitles the holder to purchase one one-thousandth of a share
of participating preferred stock at a purchase price of $115 upon the
occurrence of a distribution date under the existing rights agreement. In
adopting the restated rights agreement, our board of directors determined that
$115 would not represent the long term value of a share of DLT & Storage
Systems group stock or Hard Disk Drive group stock.

If any person or group becomes an acquiring person:

. The Hard Disk Drive group right will entitle its holder to purchase, at
the Series B purchase price, a number of shares of DLT & Storage Systems
group stock with a market value equal to twice the Series B Purchase
Price; and

. The Hard Disk Drive group right will entitle its holder to purchase, at
the Series C purchase price, a number of shares of Hard Disk Drive group
stock with a market value equal to twice the Series C Purchase Price.

In certain circumstances after the rights have been triggered, we may
exchange the rights, other than rights owned by an acquiring person, at an
exchange ratio of one share of DLT & Storage Systems group stock per the DLT &
Storage Systems group right and one share of Hard Disk Drive group stock per
the Hard Disk Drive group right.

If, following the time a person becomes an acquiring person:

. Quantum is acquired in a merger or other business combination transaction
and Quantum is not the surviving corporation;

. any person consolidates or merges with Quantum and all or part of the
common stock is converted or exchanged for securities, cash or property
of any other person; or

. 50% or more of Quantum's assets or earning power is sold or transferred,

each the DLT & Storage Systems group right and each Hard Disk Drive group right
will entitle its holder to purchase, for the Series B purchase price or Series
C purchase price, a number of shares of common stock of the surviving entity in
any such merger, consolidation or other business combination or the purchaser
in any such sale or transfer with a market value equal to twice the Series B
purchase price or Series C purchase price.

The rights will expire on August 4, 2008, unless we extend or terminate them
as described below.

At any time until a public announcement that an acquiring person has become
such, our board of directors may redeem all of the rights at a price of $0.01
per right. On the redemption date, the right to exercise the rights will
terminate and the only right of the holders of rights will be to receive this
price.

A holder of a right will not have any rights as a stockholder of Quantum,
including the right to vote or to receive dividends, until a right is
exercised.

At any time prior to the occurrence of a distribution date, we may, without
the approval of any holders of rights, supplement or amend any provision of the
restated rights agreement in any manner, whether or not such supplement or
amendment is adverse to any holders of the rights. From and after the
occurrence of a distribution date, we may, without the approval of any holders
of rights, supplement or amend the restated rights agreement:

. to cure any ambiguity,

. to correct or supplement any provision that may be defective or
inconsistent,

. subject to certain exceptions, to shorten or lengthen any time period
thereunder, or

. in any manner that we may deem necessary or desirable and which does not
adversely affect the interests of the holders of Rights, other than an
acquiring person.

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<PAGE>

The restated rights agreement contains provisions designed to prevent the
inadvertent triggering of the rights. For example, it gives a person who has
inadvertently acquired 20% or more of the outstanding shares of a class of
tracking stock and does not have any intention of changing or influencing the
control of Quantum the opportunity to sell a sufficient number of shares so
that such acquisition would not trigger the rights. In addition, the rights
will not be triggered and a divestiture of shares will not be required by our
repurchase of shares of tracking stock outstanding which could raise the
proportion of shares held by a person to over the applicable 20% threshold.
However, any person who exceeds such threshold as a result of our stock
repurchases will trigger the rights if the person subsequently acquires any
additional shares of tracking stock.

We have filed a copy of the form of the restated rights agreement with the
SEC as an exhibit to the registration statement of which this proxy statement
is a part. Upon request, we will provide you with a copy of the restated rights
agreement free of charge.

Certain Anti-Takeover Provisions of Delaware Law and the Restated Certificate
of Incorporation, the By-laws and the Restated Rights Agreement

The following discussion concerns certain provisions of Delaware law, the
restated certificate of incorporation, our by-laws, and the restated rights
agreement that could be viewed as having the effect of discouraging an attempt
to obtain control of Quantum. These provisions are similar in many respects to
those currently applicable to us.

Delaware Law

Section 203 of the Delaware General Corporation Law. Under certain
circumstances, Section 203 of the Delaware General Corporation Law limits the
ability of an "interested stockholder" to effect various business combinations
with Quantum for a three-year period following the time that such stockholder
became an interested stockholder. An "interested stockholder" is defined as a
holder of 15% or more of the outstanding voting stock.

An interested stockholder may engage in a business combination transaction
with Quantum within the three-year period only if:

. our board of directors approved the transaction before the stockholder
became an interested stockholder or approved the transaction in which the
stockholder became an interested stockholder;

. the interested stockholder acquired at least 85% of the voting stock in
the transaction in which it became an interested stockholder; or

. our board of directors and the holders of shares entitled to cast two-
thirds of the votes entitled to be cast by all of the outstanding voting
shares held by all disinterested stockholders approve the transaction.

Restated Certificate of Incorporation and By-laws

Authorized Shares. The restated certificate of incorporation will provide
that we may from time to time issue shares of preferred stock in one or more
series, the terms of which will be determined by our board of directors, and
common stock of either class. We will not solicit approval of our stockholders
unless our board of directors believes that approval is advisable or is
required by New York Stock Exchange regulations or Delaware law. This could
enable our board of directors to issue shares to persons friendly to current
management which could render more difficult or discourage an attempt to obtain
control of Quantum by means of a merger, tender offer, proxy contest or
otherwise, and protect the continuity of our management. These additional
shares also could be used to dilute the stock ownership of persons seeking to
obtain control of our company.

Stockholder Proposals and Nominations The by-laws provide that any
stockholder may present a nomination for a directorship at an annual meeting of
stockholders only if advance notice of such nomination has been delivered to
Quantum not less than 20 days or more than 60 days prior to the meeting. If
less than 30 days notice or public disclosure of the date of the meeting is
given or made to stockholders, notice by the stockholder must be received not
later than 10 days after the notice was mailed or the disclosure made.
Similarly, any stockholder may present a proposal at an annual

40
<PAGE>

meeting only if advance notice of the proposal has been delivered to Quantum
not less than 60 days or more than 90 days prior to the meeting. If less than
70 days notice or public disclosure of the date of the meeting is given or made
to stockholders, notice by the stockholder must be received not later than 10
days after the notice was mailed or the disclosure made. The foregoing notices
must describe the proposal to be brought at the meeting or the nominee for
director, as applicable, as well as provide personal information regarding the
stockholder giving the notice, the number of shares owned by the stockholders,
his or her interest in such proposal and, with respect to nominations for
directorships, whether the stockholder intends to request cumulative voting in
the election of directors at the meeting. For additional information on
cumulative voting, see "--Description of DLT & Storage Systems group stock and
Hard Disk Drive group stock--Voting Rights--Cumulative Voting." These
procedural requirements could have the effect of delaying or preventing the
submission of matters proposed by any stockholder to a vote of the
stockholders.

Restated Rights Agreement

As described under "--Restated Rights Agreement," the restated rights
agreement will permit disinterested stockholders to acquire additional shares
of Quantum or of an acquiring company at a substantial discount in the event of
certain described changes in control. The restated rights agreement is intended
to discourage anyone from buying shares of common stock having more than 20% of
the voting power of either class of tracking stock shares without board of
directors' approval.

United States Federal Income Tax Considerations

The following discussion is a summary of the principal United States federal
income tax consequences of the implementation of the tracking stock proposal.
This discussion, including the Ernst & Young LLP opinion discussed below, is
based on the Internal Revenue Code of 1986, Treasury Department regulations,
published positions of the Internal Revenue Service, and court decisions now in
effect, all of which are subject to change. In particular, Congress could enact
legislation affecting the treatment of stock with characteristics similar to
the DLT & Storage Systems group stock and the Hard Disk Drive group stock, or
the Treasury Department could issue regulations or other guidance that change
current law. Any future legislation or regulations (or other guidance) could
apply retroactively to the implementation of the tracking stock proposal. See
"--Clinton Administration Proposal" below.

This discussion addresses only those of you who hold your existing common
stock and would hold your DLT & Storage Systems group stock and Hard Disk Drive
group stock as a capital asset and did not acquire your shares in a
compensatory transaction, including the exercise of employee stock options. We
have included this discussion for general information only; it does not discuss
all aspects of United States federal income taxation that may be relevant to
you in light of your particular tax circumstances. This discussion does not
apply to you if you are a tax-exempt organization, S corporation or other pass-
through entity, mutual fund, small business investment company, regulated
investment company, insurance company or other financial institution, broker-
dealer or are otherwise subject to special treatment under the federal income
tax laws. This discussion also does not apply to those of you who hold your
existing common stock as part of a straddle, hedging or conversion transaction.
You should consult your own tax advisor with regard to the application of the
federal income tax laws, as well as to the applicability and effect of any
state, local, or foreign tax laws to which you may be subject.

Tax Implications of the Tracking Stock Proposal to Stockholders

In the opinion of Ernst & Young LLP, the tracking stock proposal will result
in a tax-free reorganization for federal income tax purposes. This means that:

. You will not recognize any income, gain or loss on the exchange of your
existing common stock for shares of DLT & Storage Systems group stock and
Hard Disk Drive group stock;

. You will recognize capital gain or loss on any cash received in lieu of
fractional shares of Hard Disk Drive group stock equal to the difference
between the amount of cash

41
<PAGE>

received and the basis allocated to the fractional shares;

. Your basis in the existing common stock held immediately before the
implementation of the tracking stock proposal will be allocated between
the DLT & Storage Systems group stock and Hard Disk Drive group stock
received, including any fractional shares deemed received, in proportion
to the fair market value of such DLT & Storage Systems group stock and
Hard Disk Drive group stock on the date the tracking stock proposal is
implemented;

. Your holding period of the DLT & Storage Systems group stock and Hard
Disk Drive group stock will include the holding period of the existing
common stock; and

. Any gain or loss recognized upon a subsequent sale or exchange of either
the DLT & Storage Systems group stock or Hard Disk Drive group stock will
be capital gain or loss.

Tax Implications of a Conversion of DLT & Storage Systems group stock or Hard
Disk Drive group stock

Ernst & Young LLP has advised that if we exercise our option to convert one
class of tracking stock into the other class of tracking stock, that conversion
will be tax-free to you. You will have a carry-over adjusted tax basis in your
newly received tracking stock and generally a holding period that includes the
holding period of the tracking stock you surrendered in the exchange.

No Internal Revenue Service Ruling

No ruling has been sought from the Internal Revenue Service. The Internal
Revenue Service has announced that it will not issue any advance rulings on the
classification of an instrument that has certain voting and liquidation rights
in an issuing corporation but whose dividend rights are determined by reference
to the earnings of a segregated portion of the issuing corporation's assets,
including assets held by a subsidiary. In addition, there are no court
decisions or other authorities that bear directly on the effect of the features
of the DLT & Storage Systems group stock and Hard Disk Drive group stock. The
opinion of Ernst & Young LLP is not binding on the Internal Revenue Service or
the courts and merely represents its best judgment based upon existing
authorities and certain assumptions and customary representations made to Ernst
& Young LLP by management.

It is possible, therefore, that the Internal Revenue Service could assert
successfully that the receipt of the DLT & Storage Systems group stock and Hard
Disk Drive group stock as well as the subsequent exchange of the DLT & Storage
Systems group stock and Hard Disk Drive group stock could be taxable to you and
to us. The Internal Revenue Service could also successfully assert that gain
from a subsequent sale of the Hard Disk Drive group stock or the DLT & Storage
Systems group stock is taxable as ordinary income rather than capital gain.
Once again, you should consult your own tax advisor.

Clinton Administration Proposal

A recent proposal by the Clinton Administration would impose a corporate
level tax on the issuance of stock similar to the DLT & Storage Systems group
stock or the Hard Disk Drive group stock. For a description of the risks
associated with this proposal, see "Risk Factors--Recent Clinton Administration
Proposal could result in taxation of issuance of tracking stock."

New York Stock Exchange Listings

We will seek the listing of both the DLT & Storage Systems group stock and
the Hard Disk Drive group stock on the New York Stock Exchange.

Exchange Procedures

Shortly after the implementation of the tracking stock proposal, you will
receive instructions on how you may, at your option, exchange your existing
stock certificates for new certificates representing your DLT & Storage Systems
group stock and your Hard Disk Drive group stock.

Stock Transfer Agent and Registrar

Our existing transfer agent, Harris Trust and Savings Bank, will act as the
registrar and transfer agent for both the DLT & Storage Systems group stock and
the Hard Disk Drive group stock.

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Financial Advisors

Lehman Brothers Inc. and Salomon Smith Barney Inc. are acting as financial
advisors in connection with the tracking stock proposal. We have paid $1
million in fees to each of them. We will pay each of them an advisory fee equal
to 0.15% of the increase in our market capitalization comparing the market
capitalization of the DLT & Storage Systems group stock and Hard Disk Drive
group stock during the ten-trading day period beginning 90 days after
implementation of the tracking stock proposal to the market capitalization of
our existing common stock during the ten-trading period prior to public
announcement of the tracking stock proposal. The market capitalization of our
existing common stock during that ten-trading day period was $3.2 billion. We
will receive a credit against the advisory fee for the $1 million we have
previously paid to them. If the increase in market capitalization of the DLT &
Storage Systems group stock and Hard Disk Drive group stock using average
closing prices during the ten-trading day period beginning 180 days after the
implementation of the tracking stock proposal is at least 90% of the increase
in the market capitalization of the DLT & Storage Systems group stock and the
Hard Disk Drive group stock determined above, we will pay each of the financial
advisors an additional fee equal to 15% of the advisory fee.

We have also agreed to reimburse these advisors for their reasonable out-of-
pocket expenses, including the fees and expenses of their lawyers, and to
indemnify them against liabilities under the Securities Act of 1933 and certain
other liabilities.

Effect on Existing Options and Convertible Notes

If the tracking system proposal is implemented, each outstanding stock
option under our existing stock option plans will be converted into separately
exercisable options to acquire one share of DLT & Storage Systems group stock
and 0.5 of a tracking stock proposal share of Hard Disk Drive group stock. The
exercise price for the resulting DLT & Storage Systems group stock options and
Hard Disk Drive group stock options will be calculated by multiplying the
exercise price under the existing stock option by a fraction, the numerator of
which is the opening price of the applicable class of tracking stock underlying
the option on the first date that stock is traded after the implementation of
the tracking stock proposal and the denominator of which is the sum of the
opening prices for the DLT & Storage Systems group stock and the Hard Disk
Drive group stock.

If the tracking stock proposal is implemented, each of our 7% convertible
subordinated notes, which currently are convertible into shares of existing
common stock, will become convertible into shares of DLT & Storage Systems
group stock and shares of Hard Disk Drive group stock. The number of shares of
DLT & Storage Systems group stock and Hard Disk Drive group stock into which
each note will be convertible is equal to the numbers of the shares which the
holder of the note would receive under the tracking stock proposal had such
note been converted immediately prior to the implementation of the tracking
stock proposal. The notes will not be separately convertible into solely DLT &
Storage Systems group stock or solely Hard Disk Drive group stock. The exercise
price and maturity date of each convertible note will not be affected by the
implementation of the tracking stock proposal.

No Dissenters' Rights

Under Delaware law, stockholders who dissent from the tracking stock
proposal will not have appraisal rights.

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QUANTUM CORPORATION

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS

You should read this discussion with our consolidated financial statements.
Historical results and percentage relationships may not necessarily be
indicative of operating results for any future periods.

Recent Developments

In May 1999, we announced a definitive agreement to acquire Meridian Data,
Inc. Meridian is a developer and manufacturer of network attached storage
solutions utilizing both conventional hard disk drive and optical disk
technologies for the PC local area network environment. The closing of this
acquisition is subject to approval of Meridian's stockholders and certain other
closing conditions. For additional information on the terms and conditions of
the Meridian acquisition, see "--Liquidity and Capital Resources."

On June 3, 1999, we announced that our first quarter earnings are currently
expected to be in the range of $.05 to $.15 for the quarter ending June 27,
1999, on sequentially lower revenues. The expected decline in revenue and
earnings is attributed to aggressive pricing in the desktop hard disk drive
market.

Results of Operations

Fiscal Year 1999 Compared With Fiscal Year 1998

Revenue. Revenue in fiscal year 1999 was $4.9 billion, compared to $5.8
billion in fiscal year 1998, a decrease of 16%. The decrease in revenue
reflected lower revenue from sales of desktop and high-end hard disk drives,
partially offset by an increase in DLTtape drive revenue, total DLTtape media
cartridge revenue and consolidation of ATL's revenue effective September 28,
1998. We continued to experience favorable market conditions for DLTtape
products, and experienced strong demand and increased sales for these products
in the second half of fiscal year 1999 as compared to the second half of fiscal
year 1998. The decline in desktop hard disk drive revenue reflected a decline
in average unit prices and, to a lesser extent, a lower level of shipments to
leading computer equipment manufacturers. The decline in average unit prices
reflected the intense competitive pricing pressures in fiscal year 1999, and
the growth of the low cost PC market, which has become a higher proportion of
the overall desktop PC market. Although high-end hard disk drive shipments
increased in fiscal year 1999, increased competitive pricing pressures resulted
in reduced average unit prices and lower high-end hard disk drive revenue.

Sales to our top five customers in fiscal year 1999 represented 42% of
revenue, compared to 45% of revenue in fiscal year 1998. These amounts
reflected a retroactive combination of the sales to Compaq and Digital
Equipment as a result of their merger in June 1998. Sales to Compaq were 14% of
revenue in fiscal year 1999, compared to 18% of revenue in fiscal year 1998,
including sales made to Digital Equipment. Sales to Hewlett-Packard were 14% of
revenue in fiscal year 1999, compared to 13% of revenue in fiscal year 1998.

Sales to computer equipment manufacturers and distribution channel customers
were 63% and 34% of revenue, respectively, in fiscal year 1999 compared to 63%
and 37% of revenue in fiscal year 1998. The remaining revenue in fiscal year
1999 represented DLTtape media cartridge royalty revenue and sales to value
added resellers.

Gross Margin Rate. Our gross margin rate in fiscal year 1999 was 17.8%,
compared to 15.1% in fiscal year 1998. The gross margin rate in fiscal year
1998 reflected the impact of a $103 million special charge related to the
transition to a new generation of high-end disk drive products, and consisted
primarily of inventory write-offs and adjustments, and losses related to firm
inventory purchase commitments. Excluding the special charge, the gross margin
rate was 16.9% in fiscal year 1998. The 0.9 percentage point increase in fiscal
year 1999 reflected increased revenues from DLTtape media cartridge royalties,
as well as an increased proportion of revenue from higher margin DLTtape and
library products. This was partially offset by the decline in gross margins
earned on desktop hard disk drives as a result of intense competitive pricing
pressures in fiscal year 1999.

Research and Development Expenses. Research and development expenses in
fiscal year 1999 were $353 million, or 7.2% of revenue, compared to $322
million, or 5.5% of revenue, in fiscal year 1998. This increase reflected
higher expenses related to new tape drive products and new

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information storage products and technologies, including Super DLTtape
technology and, to a significantly lesser extent, optical storage technology
and the consolidation of ATL's expenses.

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1999 were $191 million, or 3.9% of revenue, compared to $169 million, or 2.9%
of revenue, in fiscal year 1998. This increase reflected the consolidation of
ATL's expenses and an increase in marketing and advertising costs associated
with DLTtape products.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1999 were $94 million, or 1.9% of revenue, compared to $89
million, or 1.5% of revenue, in fiscal year 1998. The increase in general and
administrative expenses reflected the expansion of the DLT & Storage Systems
group's infrastructure to support increased revenue and earnings growth and
the consolidation of ATL's expenses, partially offset by the impact of cost
control efforts.

Purchased In-process Research and Development Expense. We expensed
purchased in-process research and development costs of $89 million as a result
of the ATL acquisition in fiscal year 1999. For additional information
regarding the ATL acquisition and the costs associated with in-process
research and development, see Note 5 of the Notes to Consolidated Financial
Statements.

Interest and Other Income/Expense. Net interest and other income and
expense in fiscal year 1999 was $2.4 million expense, compared to $1.5 million
income in fiscal year 1998. The expense in fiscal year 1999 reflected a $6.8
million write-down of an equity investment.

Loss from Investee. Our investment and operating results related to our
recording heads business have resulted in significant losses. We acquired a
recording heads business from Digital Equipment in October 1994. In May 1997,
we sold a 51% majority interest in our recording heads operations to
Matsushita-Kotobuki, and formed a recording heads joint venture with
Matsushita-Kotobuki. On October 28, 1998, we and Matsushita-Kotobuki agreed to
dissolve the recording heads joint venture. In connection with the
dissolution, we recorded a $101 million loss in the third quarter of fiscal
year 1999. This loss included a write-off of our investment in the recording
heads joint venture, a write-down of our interest in facilities in Louisville,
Colorado, and Shrewsbury, Massachusetts that were occupied by the recording
heads joint venture, warranty costs resulting from magneto-resistive recording
heads manufactured by the recording heads joint venture, and our 49% pro rata
share in funding the recording heads joint venture's repayment of its
obligations, primarily bank debt, accounts payable and other liabilities. See
Note 6 of the Notes to Consolidated Financial Statements for additional
discussion of the dissolution of the recording heads joint venture.

Income Taxes. Our effective tax rate in fiscal year 1999, excluding the
write-off of the purchased in-process research and development, was 33%,
compared to 26% in fiscal year 1998. The higher effective tax rate was
primarily attributable to decreased benefits from foreign earnings taxed at
less than the U.S. rate, a lower research and development credit, and
increased state taxes. The remaining state valuation allowance was reversed in
fiscal year 1998 as a result of the realization of the state deferred tax
assets through tax planning. No tax benefit was currently recognizable for the
charge for purchased in-process research and development.

Net Income (Loss). We reported a net loss of $30 million in fiscal year
1999, compared to net income of $171 million in fiscal year 1998. The decrease
reflected the charge for purchased in-process research and development of $89
million, the $101 million loss related to the recording heads joint venture
dissolution and the increase in operating expenses.

Fiscal Year 1998 Compared With Fiscal Year 1997

Revenue. Revenue in fiscal year 1998 was $5.8 billion, compared to $5.3
billion in fiscal year 1997, an increase of 9%. The increase in revenue
reflected an increase in DLTtape drive and DLTtape media cartridge product
shipments, as well as an increase in shipments across our other key product
lines, including desktop and high-end hard disk drives. The increase in
DLTtape drive revenue reflected growth in market acceptance of DLTtape
technology and a shift in sales mix to higher storage capacity products which
carry a higher per unit price. However, the average price at each storage
capacity level of DLTtape drives and DLTtape media cartridges declined when
compared with fiscal year 1997.

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The increase in DLTtape drive shipments reflected an increase in tape drive
production volume, which was at a level high enough to meet product demand
beginning in the third quarter of fiscal year 1998. However, the general
availability of DLTtape drives resulted in sequentially lower DLTtape drive
sales in the fourth quarter of fiscal year 1998 as a few large computer
equipment manufacturer customers reduced purchases in order to adjust their
inventory levels.

Declines in average unit prices for both desktop and high-end hard disk
drive products substantially offset the increase in disk drive shipments.
Oversupply and intensely competitive pricing, particularly in the second half
of fiscal year 1998 and more significantly for the high-end disk drive
products, caused such declines.

Sales to our top five customers were 45% of revenue in fiscal year 1998,
compared to 43% in fiscal year 1997. These amounts reflect a retroactive
combination of sales to Compaq and Digital Equipment as a result of their
merger in June 1998. Sales to Compaq were 18% of revenue in fiscal year 1998,
compared to 16% of revenue in fiscal year 1997, including sales to Digital
Equipment. Sales to Hewlett-Packard were 13% of revenue in fiscal year 1998,
compared to 11% of revenue in fiscal year 1997.

Sales to computer equipment manufacturers and distribution channel customers
were 63% and 37% of revenue, respectively, for fiscal years 1998 and 1997.

Gross Margin Rate. Our gross margin rate increased 0.6 percentage points to
15.1% in fiscal year 1998, from 14.5% in fiscal year 1997. The increase in the
gross margin rate reflected an increase in the gross margin rate earned on
DLTtape drives and DLTtape media cartridges. In addition, DLTtape drive and
DLTtape media cartridge products, which achieved a significantly higher gross
margin rate than our other products, represented a higher proportion of our
overall revenue in fiscal year 1998. The erosion of gross margins earned on
hard disk drives, particularly in the second half of fiscal year 1998, and the
$103 million special charge in the third quarter of fiscal year 1998 largely
offset these increases. The special charge related to the transition to a new
generation of high-end disk drive products consisted primarily of inventory
write-offs and adjustments, and losses related to firm inventory purchase
commitments. Excluding the special charge, the gross margin rate was 16.9% in
fiscal year 1998. The erosion of gross margins earned on hard disk drives and
the special charge both reflected the oversupply and intensely competitive
pricing in the desktop and high- end disk drive markets, particularly in the
second half of fiscal year 1998.

Research and Development Expenses. Research and development expenses in
fiscal 1998 were $322 million, or 5.5% of revenue, compared with $291 million,
or 5.5% of revenue, in fiscal year 1997. The $31 million increase in research
and development expenses reflected higher expenses related to pre-production
activity on new products, as well as expenses related to new information
storage products and technologies, including Super DLTtape technology and, to a
significantly lesser extent, optical storage technology.

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1998 were $169 million, or 2.9% of revenue, compared with $149 million, or 2.8%
of revenue, in fiscal year 1997. This increase primarily reflected the
increased costs associated with supporting our higher sales volume.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1998 were $89 million, or 1.5% of revenue, compared with $87
million, or 1.6% of revenue, in fiscal year 1997.

Interest and Other Income/Expense. Net interest and other income and expense
in fiscal year 1998 was income of $1 million, compared with expense of $41
million in fiscal year 1997. A decrease in interest expense, reflecting an
approximately $172 million year-over-year decrease in the average level of debt
used to finance operations, and an increase in the year-over-year average level
of cash, combined to cause this change.

Loss from Investee. The loss from investee reflected our equity share in the
operating losses of the recording heads joint venture since May 16, 1997, when
this joint venture was formed. Prior to May 16, 1997, we fully consolidated our
recording heads operations. Our total losses from recording heads operations
for fiscal year 1998 was $75 million, compared to $110 million for fiscal year
1997. The loss from investee for fiscal year 1998
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included a charge of approximately $5 million, which represented our share of a
third quarter charge in the recording heads joint venture's operating results
for severance, equipment write-offs, lease termination and other costs
associated with the recording heads joint venture's strategic actions. A
combination of reduced unit prices, operating costs, manufacturing yields,
product transitions and soft demand for certain recording heads programs,
primarily those related to high-end disk drive products, resulted in losses by
the recording heads joint venture.

Income Taxes. Our effective tax rate for fiscal years 1998 and 1997 was 26%.
The state valuation allowance was reversed in fiscal year 1998 as a result of
the realization of the state deferred tax assets through tax planning.

Net Income. We reported after-tax earnings of $171 million in fiscal year
1998, compared to $149 million in fiscal year 1997. The increase reflected
increased sales and margins on DLTtape products, increased interest income,
decreased interest expense, and lower net losses related to our involvement in
recording heads operations due to our reduced ownership of these operations.
Higher margins on DLTtape products, as compared with the eroded gross margins
on hard disk drives, resulted in tape drive and DLTtape media cartridge
products becoming a more significant source of our operating income in fiscal
year 1998, particularly during the second half of the fiscal year. Lower
margins on sales of desktop and high-end hard disk drives and the $103 million
special charge related to high-end hard disk drives partially offset these
increases.

Recent Accounting Pronouncements

In June 1997, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards ("SFAS") No. 130, "Reporting
Comprehensive Income," which we implemented in fiscal year 1999. SFAS No. 130
establishes standards for reporting and display of comprehensive income and its
components--revenue, expenses, gains, and losses--in a full set of general-
purpose financial statements. The adoption of SFAS No. 130 changed our
financial statement presentation but does not have an impact on our financial
position or results of operations.

In June 1997, the FASB issued SFAS No. 131, "Disclosure about Segments of an
Enterprise and Related Information," which requires certain financial and
description information about a company's reportable operating segments. We
adopted SFAS No. 131 in fiscal year 1999. The adoption of SFAS No. 131 applies
solely to disclosure and does not have an impact on our financial position or
results of operations.

Liquidity and Capital Resources

Cash, cash equivalents and marketable securities were $797 million at March
31, 1999 compared to $714 million at March 31, 1998. We used cash in fiscal
year 1999 primarily to purchase $305 million of treasury stock, as discussed
below, and to invest in property and equipment. Cash was provided by operating
activities, primarily sales, the collection of accounts receivable, and a
reduction in inventories.

In September 1998, we issued 16.9 million shares, including the reissuance
of treasury shares, to the shareholders of ATL to complete the acquisition of
ATL. The difference between the cost of the treasury stock and the value at
which we reissued the shares resulted in a $63 million reduction to retained
earnings in fiscal year 1999. For additional information regarding the ATL
acquisition, see Note 5 of the Notes to Consolidated Financial Statements.

During fiscal year 1999, we completed the share repurchase authorized by our
board of directors of a total of 15.5 million shares. The total cost of such
repurchases was $305 million. Our intent in effecting the repurchase was to
minimize the dilutive impact of the shares issued to complete the acquisition
of ATL.

In December 1998, ATL entered into a senior credit facility that provides a
$35 million revolving credit line to ATL. The revolving credit line is co-
terminous with our $500 million revolving credit line, expiring in June 2000.
At the option of ATL, borrowings under the revolving credit line bear interest
at either the London interbank offered rate plus a margin determined by our
total funded debt ratio, or at a base rate, with option periods of one to six
months. At March 31, 1999, $18 million was outstanding on ATL's revolving
credit line.

We filed a registration statement which became effective on July 24, 1997,
pursuant to which we may issue debt or equity securities, in one or more

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series or issuances, limited to $450 million aggregate public offering price.
Under the registration statement, in July 1997, we issued $288 million of 7%
convertible subordinated notes. The notes mature on August 1, 2004, and are
convertible at the option of the holder at any time prior to maturity, unless
previously redeemed, into shares of our common stock at a conversion price of
$46.325 per share. We have the option to redeem the notes on or after August 1,
1999 and prior to August 1, 2001, under certain conditions related to the price
of our common stock. Subsequent to August 1, 2001, we may redeem the notes at
any time. In the event of certain changes involving all or substantially all of
our common stock, the holder would have the option to redeem the notes.
Redemption prices range from 107% of the principal to 100% at maturity. The
notes are unsecured obligations subordinated in right of payment to all of our
existing and future senior indebtedness.

In June 1997, we entered into an unsecured senior credit facility that
provides a $500 million revolving credit line and expires in June 2000. At our
option, borrowings under the revolving credit line bear interest at either the
London interbank offered rate plus a margin determined by our total funded debt
ratio, or at a base rate, with option periods of one to six months. At March
31, 1999, there was no outstanding balance drawn on this line.

In September 1996, we entered into a $42 million mortgage financing related
to certain domestic facilities at an effective interest rate of approximately
10.1%. The term of the mortgage is 10 years. We are required to make monthly
payments based on a 20-year amortization period, and a balloon payment at the
end of the 10-year term.

We expect to spend approximately $155 million in fiscal year 2000 for
capital equipment and leasehold improvements. These capital expenditures will
support the disk drive and tape drive businesses, research and development, and
general corporate operations.

We believe that our existing capital resources, including the credit
facility and any cash generated from operations, will be sufficient to meet all
currently planned expenditures and sustain operations for the next 12 months.
However, this belief assumes that operating results and cash flow from
operations will meet our expectations.

See Note 7 of the Notes to Consolidated Financial Statements for additional
information regarding long-term debt.

In May 1999, we announced a definitive agreement to acquire Meridian Data,
Inc., pending approval of Meridian's stockholders and certain other closing
conditions. Meridian is a developer and manufacturer of network attached
storage solutions utilizing both conventional hard disk drive and optical disk
technologies for the PC local area network environment.

Under the terms of the proposed agreement, Meridian's stockholders will
receive either our existing common stock or both DLT & Storage Systems group
stock and Hard Disk Drive group stock, depending on the timing and outcome of
the tracking stock proposal and the proposed Meridian acquisition, which is
expected to be completed by September 1999. If the acquisition is completed
prior to the implementation of the tracking stock proposal, each outstanding
share of Meridian's common stock will be converted into 0.489 of a share of our
existing common stock, subject to adjustment based on the trading range of our
existing common stock prior to the completion of the acquisition. If the
tracking stock proposal is implemented prior to the completion of the Meridian
acquisition, each outstanding share of Meridian's common stock will be
converted into 0.489 of a share of DLT & Storage Systems group stock and 0.2445
of a share of Hard Disk Drive group stock, subject to adjustment based on the
trading range of DLT & Storage Systems group stock and Hard Disk Drive group
stock prior to the completion of the acquisition. In addition, under the terms
of the proposed transaction, all Meridian stock options will be assumed by us.
The acquisition will be accounted for as a purchase, and we expect to recognize
a charge for purchased in-process research and development upon closing of the
acquisition.

Meridian had revenue of $4 million and $18 million in the quarter ended
March 31, 1999, and the year ended December 31, 1998, respectively. At March
31, 1999, Meridian had total cash and marketable securities of $15 million. At
December 31, 1998, Meridian had a net operating loss carryforward for U.S.
federal income tax purposes of approximately $32 million.

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In May 1999, we announced that the Board of Directors authorized the
repurchase of up to $200 million of our existing common stock through open
market purchases made from time to time. In part, the intent of the repurchase
would be to offset the dilutive impact of the shares issued to complete the
Meridian acquisition. There are currently no other specific plans for shares
that might be repurchased.

Year 2000

The year 2000 computer issue refers to the possibility that computer systems
may not be able to distinguish the year 2000 from the year 1900. Two other
date-related issues may contribute to the year 2000 problem: (1) certain
systems have associated special values with date fields (for example, 9/9/99),
and (2) these same systems may fail to recognize that year 2000 is a leap year.
Because of the pervasive use and dependency on computer technology in all
facets of modern commerce, year 2000 issues present a potentially vast risk to
companies, including us. For example, there are potential disruptions or
failures of our products and operations and of the products and operations of
our suppliers, customers and service providers. Because the year 2000 issue can
impact us indirectly through our suppliers, service providers and customers, an
assessment and prediction of the impact of the year 2000 issue on our company
is difficult.

We are in the process of implementing plans to address year 2000 issues both
within and outside Quantum. In addressing the year 2000 issues and risks, we
have focused our efforts on our enterprise-wide and departmental operations,
products, critical suppliers (including service providers) and key customers.
Within Quantum, these efforts are intended to encompass all major categories of
computer systems and operating equipment used by us, including those utilized
in manufacturing, research and development, sales, finance and human resources.
To ensure year 2000 compliance for all of our systems, we have adopted an
approach based on the U.S. General Accounting Office Year 2000 Assessment
Guide. The approach utilizes a multi-phased model, with major phases consisting
of inventory, assessment, resolution, testing and certification:

. In the inventory phase we are listing and reviewing for criticality and
risk all hardware, software, equipment, infrastructure, and desktop tools
and applications.

. In the assessment phase, we are determining whether we are converting,
replacing or eliminating the impacted system or application.

. In the resolution phase, we are developing and carrying out a formal
plan.

. Under stringent procedures in the testing phase, we are validating the
system and application on its functionality to perform seamlessly in the
year 2000.

. In the certification phase, we are documenting and verifying all test
results.

Within each of the major categories of computer systems and operating
equipment, we prioritize our year 2000 issues and risks on three levels:

. The critical level reflects short-term failure which would have a severe
impact on our business operations and result in significant downtime or a
manual effort to perform the required functions. Without this system or
application, our business could not function.

. Key level applications or systems, although required by us, are not
mandatory for business survival. We do not expect the failure of key
level applications to cause significant disruption to our operations. We
can defer the work or devise manual back-up procedures to handle the
interim needs.

. Active level applications, although currently in use, are not required
for our normal operations. We do not expect their failure to result in
any disruption to our business.

We have made significant progress in our preparedness for year 2000. We have
assessed and remedied all critical areas of our own operations, which include
information technology, operating equipment with embedded chips or software and
products. We have also certified readiness of these critical areas. We expect
to complete assessment, resolution, testing, and certification of critical and
key third parties by the end of May 1999.

We are currently addressing key level areas of our own operations, which
includes information technology, operating equipment with embedded chips or
software and products.

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. The inventory phase is approximately 80% complete with an expected
completion date of May 31, 1999.

. The assessment phase is approximately 10% complete, with an expected
completion date of June 30, 1999.

. The resolution phase is expected to be complete by June 30, 1999.

. The testing and certification phases are expected to be complete by
August 31, 1999.

We are also developing contingency plans, based in part on the assessment
results. Development of contingency plans is expected to be complete by
August 31, 1999.

Our failure to complete critical readiness assessments, critical corrective
actions or implement viable contingency plans in a timely matter could have a
material adverse effect on our business, financial condition and operating
results.

As indicated above, our risk assessment includes understanding the year 2000
readiness of our suppliers. Our risk assessment process associated with
suppliers includes soliciting and analyzing responses to questionnaires
distributed to these suppliers, as well as onsite interviews with certain
critical suppliers. Critical suppliers include a number of suppliers with
operations in China, India and Mexico that are our sole source of certain
components for tape drives. We have received 100% of responses from an initial
survey sent to suppliers and have received 100% of responses from a second
follow-up survey sent to those identified as critical suppliers. To further
assess year 2000 readiness, we are conducting on-site visits of certain
critical suppliers and expect to complete these visits by the end of May 1999.

The year 2000 readiness of Matsushita-Kotobuki, our hard disk drive
manufacturing partner, is of particular importance. Matsushita-Kotobuki
implemented a year 2000 compliance project plan in April 1998, similar in
content and structure to that employed by us. We have been informed that all of
Matsushita-Kotobuki's critical processes, applications and hardware have been
tested and certified for year 2000 compliance. Also, we understand that all key
and active processes, applications and hardware will be year 2000 compliant and
certified by the end of June 1999. We hold regular meetings to verify that
Matsushita-Kotobuki is, and will remain, on schedule. Additionally, we are
currently performing limited on-site evaluations of Matsushita-Kotobuki
operations in Japan, Singapore and Ireland, and expect completion by the end of
May 1999. Our reliance on Matsushita-Kotobuki and other critical suppliers, and
therefore, on the proper functioning of their information systems and software,
means that any failure by these critical suppliers to address year 2000 issues
could have a material adverse impact on our business, financial condition and
results of operations. Based on the level of risk assessed of critical
suppliers, we may develop contingency plans, including the possibility of a
planned increase in inventory or other measures.

We are also working closely with key customers to evaluate their readiness
for year 2000 and are currently performing on-site visits as deemed necessary.
The ability of customers to deal with year 2000 issues may affect their
operations and their ability to order and pay for products. Based on the level
of risk assessed, we may develop contingency plans to address possible changes
in customer order patterns.

We believe that third party factors, rather than our internal systems and
applications, would be the cause of our most reasonably likely worst case
scenario. For example, since we deal heavily with third parties to manufacture
and transport products and services, a failure of third party systems could
result in a disruption of service, which could result in delays in shipments of
our products. For internal systems, we are developing workarounds, which may
involve providing manual or other automated processes in lieu of normal
procedures.

Our products are inherently year 2000 compliant; our families of disk drive
products have no internal date clocks, and therefore are not impacted by the
year 2000 problem. Our DLT tape drives use a four-character string to describe
the year and will not be affected by the year 2000 problem. Additionally, we do
not need to make any modifications to any disk or tape drive's internal
firmware to accommodate the transition to the year 2000. We consider a disk
drive or tape product to be year 2000 compliant when used in accordance with
our product information. That product will not generate an error in data
related to the year change

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from December 31, 1999 to January 1, 2000. Furthermore, year 2000 compliant
products will correctly handle leap years, including leap years beginning
January 1, 2000 and thereafter. However, the assessment of whether a complete
computer system operates correctly depends on factors such as the operating
system, basic input/output systems, software and components, which companies
other than Quantum provide.

Costs incurred to date in addressing the year 2000 issue have been
approximately $8.2 million, with $5.5 million and $2.7 million of this cost in
the Hard Disk Drive group and the DLT & Storage Systems group, respectively.
Based on assessment and resolution projects underway, we currently expect that
the total cost of addressing the year 2000 issue, including both incremental
spending and redeployed resources, will not exceed $15 million, with $10.3
million and $4.7 million of this cost in the Hard Disk Drive group and the DLT
& Storage Systems group, respectively. We expect a majority of the cost to
relate to the redeployed resources. However, as the year 2000 efforts continue,
we may use third-party vendors or service providers as necessary to assure that
we successfully meet program milestones. The costs related to the year 2000
effort in fiscal year 1999 represented approximately 10% of our total
information technology budget for the fiscal year and are expected to represent
approximately 10% of our total information technology budget for fiscal year
2000. We have not deferred any significant system projects due to the year 2000
program. As our risk assessment and correction activities continue, these costs
may change. In addition, our total cost estimate does not include potential
costs related to any customer or other claims resulting from our failure to
adequately correct year 2000 issues.

Based on assessment and remediation completed to date, we do not expect any
significant disruption to our operations or operating results as a result of
year 2000 issues. We are taking all steps we believe are appropriate to
identify and resolve any year 2000 issues; however, the extent such issues may
affect us is uncertain. We cannot assure you that we will be able to assess,
identify and correct year 2000 issues in a timely or successful manner. We also
cannot assure you that our suppliers, service providers, customers or other
third parties will be year 2000 compliant.

The foregoing statements regarding our year 2000 plans and our expectations
for resolving these issues and the costs associated therewith are forward-
looking statements and actual results could vary. The severity of the problems
to be resolved within Quantum, the year 2000 issues affecting our suppliers and
service providers, and the costs associated with third party consultants and
software necessary to address these issues could affect our success in
addressing year 2000 issues.

Euro Impact

We believe that the adoption of a single currency, the Euro, by eleven
European countries will not materially affect our business, information systems
or consolidated financial position, operating results or cash flows.

BUSINESS OF THE DLT & STORAGE SYSTEMS GROUP

Tape back-up is used as an efficient and cost-effective means to make back-
up and archive copies of large amounts of data often stored on network servers
which are high speed computers that allow many computer users to access shared
computer programs and data. Tape drives are devices that read and write data
typically stored on a network server's hard disk drive storage system to
magnetic tape that is stored on a reel housed within the media cartridges. Tape
drives provide relatively slower data access times when compared to hard disk
drives but tape drives are able to cost-effectively store larger quantities of
data that must be protected but infrequently accessed. Each tape drive reads
and writes data on multiple media cartridges to store data in the same way a
video cassette recorder is able to replay and record TV programs on multiple
video cassette tapes. Tape libraries are systems that allow for the automatic
functioning of multiple tape drives and media cartridges within a single
storage system.

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The DLT & Storage Systems group's acquisition of ATL in October 1998 allowed
the DLT & Storage Systems group to become the first provider of tape libraries
that serve the entire tape library data storage market from desktop computers
to enterprise class computers. The DLT & Storage Systems group also plans to
enter the rapidly emerging market for network attached storage appliances by
offering products designed to meet the requirements of workgroup computing
environments where multiple computer users access shared data files over a
local area network. Network attached storage appliances are storage devices
which separately perform the storage function for networks of computers.

DLTtape drives require compatible DLTtape media cartridges. Historical use
of DLTtape drives has shown that each drive uses approximately 15-20 media
cartridges per year. Growth in the installed base of DLTtape drives will result
in increasing demand for DLTtape media cartridges.

The installed base of DLTtape drives at the beginning of fiscal year 1999
was approximately 600,000, and grew to over 1 million during the fiscal year.
The larger installed base resulted in shipments of approximately 14 million
DLTtape media cartridges in fiscal year 1999. The DLT & Storage Systems group
expects the installed base to grow at least by the same amount in fiscal year
2000. This expectation is a forward-looking statement and actual results may be
affected by the factors discussed in "--Risk Factors Relating to the DLT &
Storage Systems group." In September 1998, in an effort to continue to expand
the installed base of DLTtape drives, the DLT & Storage Systems group also
began licensing a third party supplier to manufacture and sell DLTtape drives.
The DLT & Storage Systems group will receive a royalty fee on all sales of
DLTtape drives by this licensee.

Historically, the DLT & Storage Systems group derived revenue from the
direct sale of both DLTtape drives and DLTtape media cartridges. Beginning in
1998, the DLT & Storage Systems group's licensed third party DLTtape media
manufacturers began selling DLTtape media cartridges. The DLT & Storage Systems
group receives a royalty fee on all DLTtape media cartridges sold by its
licensees which, while resulting in lower revenue than DLTtape media sold
directly by the DLT & Storage Systems group, generates comparable income from
operations. The DLT & Storage Systems group prefers DLTtape media cartridge
sales to occur through its license model because this minimizes the DLT &
Storage Systems group's operational risks and expenses and provides a more
efficient distribution channel. The DLT & Storage Systems group believes that
the large installed base of DLTtape drives and its licensing of DLTtape drives
and media cartridges give the DLT & Storage Systems group a unique competitive
advantage.

Industry Background

The importance of stored digital content has moved from a peripheral concern
to the central issue in computing. This is a result of several factors
including:

. Growth in Digital Content. Digital content--data, graphics, video and
audio--is growing at an exponential rate. This growth has been made
possible by new technologies that make it easy and cost-effective to
transform, move, access and store mass amounts of digital content. When
one gets cash from an ATM machine, starts a personal computer, buys gas
with a charge card, goes to the doctor or dentist, makes a hotel or
airline reservation or checks a book out of the library--one is either
tapping into stored digital content, creating new digital content that
has to be stored somewhere, or both.

. Shift from Mainframe to Networked Server Computing. Within enterprises,
there has been a fundamental shift from mainframe to networked server
computing that allows many users to share data and applications stored on
a single high-speed computer or network of high-speed computers. This
shift has resulted in the

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distribution of mission critical information from the mainframe to network
servers. It has also contributed significantly to the volume growth of
digital content, and has significantly increased the complexity of
managing digital content.

. Dramatic Growth of Internet. The Internet has grown dramatically from a
relatively small research-based network to a worldwide network of
networks. The Internet has created greater volumes of stored digital
content, given further momentum to the growth of networked servers within
businesses, and created the entirely new medium of exchange known as
electronic commerce.

As businesses increasingly depend on stored digital content, it must be
secure from human or technical errors, available 24 hours a day, seven days a
week, and recoverable after a disaster. Storage system solutions must reliably
and efficiently capture, protect, manage, back up and archive stored content.

Because digital content is growing so rapidly in volume and importance, the
demand for storage and back-up capacity is also growing rapidly. International
Data Corporation estimates that worldwide storage needs are growing by up to
100% per year. This rapid growth is providing many opportunities for products
and services that are integral to total storage solutions, including devices
such as tape drives; systems and subsystems such as tape libraries; storage
management software; and storage services such as data back-up, disaster
recovery, media management.

Overview of the Tape Storage Market. The rapid growth in mission-critical
digital content has created a demand for high reliability, high capacity, high
performance data back-up systems. Tape storage is the lowest cost means of
storing large quantities of digital content when compared with fixed or
removable digital storage devices, because tape allows for larger storage
surface areas. Tape storage also offers the lowest price/capacity ratio of any
removable storage technology. As a result, tape storage has been used for many
years to back up and archive mission critical data stored on hard disk drives
and data that is not frequently accessed but is retained for long periods of
time.

Historically, the tape storage market has tracked the evolution of the
computer systems market. Tape storage initially served the mainframe back-up
and archival market. As the workstation computing market began to grow at the
end of the 1980s and into the 1990s, new tape drives were designed to meet the
back-up and archival needs of the workstation market. These tape drives
included the 4mm and 8mm tape media, which offered the capacities and lower
price points required for this market. As the Unix and Windows NT network
server markets grew rapidly, the tape market for mid-range network servers
emerged. Unix and Windows NT are popular operating systems used for network
servers. The mid-range network server market requires tape storage solutions
with high capacity, high performance, high reliability and greater scalability.
The mid-range network server market is expected to continue to grow as a result
of the continued expansion of the Unix and Windows NT network server markets.

Emerging Storage Industry Trends. During the past ten years, the computer
industry has been transformed by the emergence of dominant platforms, networked
computing and plug-and-play ease of use. The storage industry is now beginning
to experience similar changes as a result of the following:

. Storage architectures. Enterprise-level storage architectures attempt to
solve a very complex problem for an entire enterprise--integrating
storage management across diverse, distributed computers, networks and
operating systems. These architectures are high-end solutions, designed
to meet enterprise-wide transaction processing needs, and may require the
installation of an entire proprietary data storage system.

. Storage area networks. Storage area networks are intended to function at
the high-end server level where most enterprise storage is based. Storage
area networks are dedicated high-speed networks that expedite the
movement of data from one part of the system to another without tying up
servers or clogging local area networks.

. Network attached storage appliances. Network attached storage appliances
help overcome difficulties in sharing and

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<PAGE>

protecting data created in workgroup computing environments where multiple
users access shared data files over a local area network. They allow users
to easily add plug-and-play storage capacity to networks without having to
disable the network server, an inconvenient and expensive task. Network
attached storage appliances and storage area networks are complementary
because they focus on different segments of an organization's total
digital content storage needs--workgroup vs. enterprise. The DLT & Storage
Systems group expects both approaches to co-exist for the foreseeable
future.

. New storage intelligence. Storage area networks and network attached
storage appliances require intelligence at the storage system level, and
the performance of both can be substantially improved with intelligence
at the device and sub-system levels. System level intelligence allows for
plug-and-play installation of storage devices, communication between
storage devices, such automated data transfer from disk to tape.

The DLT & Storage Systems Group Solution

The DLT & Storage Systems group designs and manufactures DLTtape drives,
DLTtape media cartridges and tape libraries that address many of the diverse
storage needs of workgroups and enterprises. The DLT & Storage Systems group
plans to enter the rapidly emerging market for network attached storage
appliances with products targeted at workgroup computing environments where
multiple users access shared data files over a local area network.

The DLT & Storage Systems group's DLTtape technology has emerged as the de
facto industry standard for data back-up in the mid-range network server market
primarily for the following reasons:

. Higher capacity/cost-effectiveness. More digital information can be
stored on DLTtape than 4mm or 8mm tape as a result of the greater media
recording area of half-inch tape, patented linear recording pattern and
single reel media cartridge design. As a result, DLTtape technology
compares favorably on a price-to-capacity basis.

. Higher performance. The time periods allocated for network servers to
back up and archive data are becoming shorter. DLTtape drive's faster
data transfer rates address this issue.

. Higher reliability. The DLT & Storage Systems group believes that DLTtape
technology has proven more reliable than 4mm or 8mm tape technology. This
high reliability is due in part to the DLTtape drive's patented head
guide assembly that reduces tape wear and ensures data tracking accuracy.
Specifically, when compared to 4mm and 8mm tape drives, DLTtape drives
have much lower tape-to-head friction and no contact between the rollers
and the tape media's magnetic coating.

. Greater scalability. DLTtape products have higher capacity and
compatibility to previous generations of DLTtape products, providing a
scalable data back-up solution that can cost-effectively grow with an
organization's data back-up needs.

The DLT & Storage Systems group's current storage solutions have the
following core strengths:

. Broad industry acceptance of DLTtape technology. The broad acceptance of
DLTtape technology in the mid-range network server market has resulted in
DLTtape becoming an industry platform for data protection. The DLT &
Storage Systems group maintains close relationships with leading computer
equipment manufacturers. The DLT & Storage Systems group believes these
computer equipment manufacturers will set the industry standards, drive
product volume and continue to advance the market position of DLTtape
technology. In addition, many companies, including the DLT & Storage
Systems group's customers and competitors, design products based on
DLTtape technology including storage sub-systems, network servers and
storage management software. The emergence of DLTtape also has enabled
the development of an entirely new market segment of mid-range tape
libraries. DLTtape products are incorporated into the DLT & Storage
Systems group's tape libraries as well as

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many of the DLT & Storage Systems group's competitor's products. As a
result, many companies base significant portions of their business on
DLTtape technology.

. A broad tape library family. The DLT & Storage Systems group's ATL
acquisition allowed it to become the first company in the industry to
provide tape libraries that serve the entire tape library market from
desktop to enterprise wide data storage. The DLT & Storage Systems
group's broad line of tape libraries is particularly attractive to
computer equipment manufacturers customers who often prefer to deal with
a limited number of suppliers.

. A unique storage system architecture. The DLT & Storage Systems group's
Prism Library Architecture(TM), on which many of the DLT & Storage
Systems group's tape libraries are built, is a unique architecture which
enables storage systems to incorporate both tape drives and hard disk
drives within the same tape library. This enables tape libraries to take
advantage of both the speed of hard disk drives and the cost-
effectiveness of tape storage.

. Efficient storage management capabilities. The DLT & Storage Systems
group's WebAdmin(TM), the industry's first Internet browser-based tape
library management system, allows system administrators to monitor widely
distributed storage systems at remote locations with point-and-click
ease.

The DLT & Storage Systems Group Strategy

The DLT & Storage Systems group's strategy is to leverage its strength and
expertise in storage device technology and storage systems into broader
industry leadership in storage systems and services. The DLT & Storage Systems
group's goal is to develop not only the devices that store digital content,
but also the intelligence that adds performance and functionality to storage
devices and the systems that support network digital content storage.

The primary components of the DLT & Storage Systems group's business
strategy are:

. Extend the DLT & Storage Systems group's number one position in the tape
drive and media cartridge market. The DLT & Storage Systems group plans
to execute this strategy by:

1) introducing new products such as those based on Super DLTtape
technology, which has the potential to expand the DLT & Storage
Systems group's technology leadership in the mid-range tape market.
Super DLTtape technology will feature native data transfer rates of
10-40GB per second and native capacities of 100-500GB. The DLT &
Storage Systems group plans to introduce its first product based on
Super DLTtape technology in calendar year 1999.

2) leveraging its relationships with licensees of its DLTtape drives and
DLTtape media cartridges in order to expand the market for these
products. The DLT & Storage Systems group's strategy is to expand the
market for DLTtape drives, particularly the international market,
further increasing demand for compatible DLTtape media cartridges.

3) increasing the awareness of the need for data back-up. A research
study commissioned by the DLT & Storage Systems group found that an
estimated 88% of companies participating in the study did not have an
effective disaster recovery plan in place. The DLT & Storage Systems
group and 20 other companies have jointly launched the "Prove It"
campaign to help companies evaluate, improve and implement effective
disaster recovery plans.

. Expand into the network attached storage appliance market. The DLT &
Storage Systems group plans to introduce network attached storage
appliances designed to meet the requirements of workgroup computing where
multiple users access shared data files and data over a local area
network. The DLT & Storage Systems group is developing a tape-based
appliance featuring a fully integrated controller; pre-loaded back-up
software; a tape library incorporating standard DLTtape drives and media

55
<PAGE>

cartridges; automatic connectivity for remote website management; and
plug-and- play installation capability. The DLT & Storage Systems group is
also developing a hard disk drive-based appliance featuring a fully
integrated controller, file system and hard disk drive(s), and plug-and-
play installation capability.

. Further expand into the enterprise storage market. The DLT & Storage
Systems group believes that the planned introduction of new products
based on Super DLTtape technology, with higher storage capacity, faster
data transfer rates, and the added benefits derived from the Prism
Library Architecture and WebAdmin, will enable the DLT & Storage Systems
group to further expand into the enterprise storage market. The DLT &
Storage Systems group believes that the introduction of its enterprise-
level P3000 series tape library in the fall of 1998 is the first step
towards this expansion.

. Expand storage services business. Through its acquisition of ATL, the
DLT & Storage Systems group believes that it is now in a position to
capitalize on the growing market opportunity to provide services for both
the management of data and storage systems and the protection of data.
The DLT & Storage Systems group believes that customers will increasingly
rely on third parties to provide storage management services such as
remote monitoring, trouble-shooting and maintenance of storage systems.

Products

The DLT & Storage Systems group's products include:

. DLTtape drives. The DLT & Storage Systems group offers three tape drive
products--the DLT8000, the DLT7000 and the DLT4000. The DLT8000 provides
a combination of 40GB of native capacity (80GB compressed) and a
sustained data transfer rate of 6 megabytes (MB) per second (12MB
compressed). The DLT7000 provides a combination of 35GB of native
capacity (70GB compressed) and a sustained data transfer rate of 5MB per
second (10MB compressed). The DLT4000 provides a combination of 20GB of
native capacity (40GB compressed) and a sustained data transfer rate of
1.5MB per second (3MB compressed). The DLT & Storage Systems group
expects to introduce a next generation DLTtape drive in calendar year
1999.

. DLTtape media cartridges. The DLTtape family of half-inch tape media
cartridges are designed and formulated specifically for use with DLTtape
drives. The capacity of a DLTtape media cartridge is up to 40GB (80GB
compressed). The DLT & Storage Systems group's half-inch tape cartridges
take advantage of shorter wavelength recording schemes to enable read
compatibility with future generations of DLTtape drives such as those
based on Super DLTtape technology.

. Tape libraries. The DLT & Storage Systems group offers a broad line of
automated DLTtape libraries that support a wide range of back-up and
archival needs from workgroup servers to enterprise-class servers. The
DLT & Storage Systems group's tape libraries range from its tape
autoloaders which accommodate a single DLTtape drive and up to 280GB of
storage capacity to the P3000 series library which features Prism Library
Architecture and can be configured in multiple units to scale up to 11.4
Terabytes of storage capacity.

. Solid state storage systems. The DLT & Storage Systems group offers two
families of solid state storage systems that are available in capacities
ranging from 134MB to 3.2GB and have data access times that are up to 15
times faster than magnetic hard disk drives. Solid state storage systems
store data on memory chips rather than magnetic disks used in standard
hard disk drives. Solid state storage systems function within a computer
system as if they were hard disk drives and enable significantly faster
data access times.

Customers

The DLT & Storage Systems group's DLTtape drives have achieved broad market
acceptance in the mid-range network server market with leading computer
equipment manufacturers such as Compaq, Dell Computer Corporation, Hewlett-
Packard, IBM,

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StorageTek and Sun Microsystems, Inc. Customers for the DLT & Storage Systems
group's tape libraries include Compaq, Sun Microsystems, Hewlett-Packard, IBM
and EMC Corporation. To protect the competitive position of its tape library
customers, the DLT & Storage Systems group operates the tape library portion of
its business through its wholly owned ATL subsidiary which maintains an arms-
length relationship with the DLT & Storage Systems group's DLTtape drive
business.

Because the leading computer equipment manufacturers have a dominant market
share for the computer systems into which the DLT & Storage Systems group's
products are incorporated, the DLT & Storage Systems group's sales are
concentrated with several key customers. Sales to the DLT & Storage Systems
group's top five customers in fiscal year 1999 represented 53% of revenue,
compared to 63% of revenue in fiscal year 1998. These amounts reflected a
retroactive combination of the sales to Compaq and Digital Equipment as a
result of their merger in June 1998. Sales to Compaq were 25% of revenue in
fiscal year 1999, compared to 36% of revenue in fiscal year 1998, including
sales made to Digital Equipment. Sales to Hewlett-Packard were 13% of revenue
in fiscal year 1999, compared to 11% of revenue in fiscal year 1998.

Sales and Marketing

The DLT & Storage Systems group markets its products directly to
manufacturers of computer systems and workstations and to distributors,
resellers and systems integrators through its worldwide sales force. The DLT &
Storage Systems group also sells DLTtape media cartridges through its web site.

The DLT & Storage Systems group supports international sales and operations
by maintaining a European headquarters in Neuchatel, Switzerland; a Japanese
headquarters in Tokyo; and additional sales offices in Singapore and throughout
the world. The DLT & Storage Systems group's international sales, including
sales to foreign subsidiaries of United States companies, were 29% of the DLT &
Storage Systems group's total revenue in fiscal year 1999, and 24% and 22% of
total revenue in fiscal years 1997 and 1998, respectively.

Strategic Licensing Partners

Fuji and Maxell have historically been the primary manufacturers of DLTtape
media cartridges for the DLT & Storage Systems group. The DLT & Storage Systems
group's license agreements with Fuji and Maxell allow those companies to
independently sell DLTtape media cartridges for which the DLT & Storage Systems
group receives royalty fees. The DLT & Storage Systems group believes these
strategic license agreements can expand the market for DLTape technology and
provide customers with multiple sources for DLTtape media cartridges.

In September 1998, the DLT & Storage Systems group entered into a
manufacturing license and marketing agreement with Tandberg, a European-based
data storage company, through which Tandberg can become an independent
manufacturer of DLTtape drives, as well as products currently under development
based on Super DLTtape technology. Under the terms of the agreement, the DLT &
Storage Systems group will receive royalties on all DLTtape drives that
Tandberg sells. Tandberg has indicated that it expects to begin manufacturing
DLTtape drives in the second half of calendar year 1999. Tandberg has also
agreed to market a full spectrum of DLTtape drives, DLTtape media cartridges
and tape libraries. With Tandberg's strong name recognition and established
distribution channels in the European market, the DLT & Storage Systems group
expects Tandberg to strengthen international sales of DLTtape drives, DLT tape
media cartridges and tape libraries. The DLT & Storage Systems group also
expects Tandberg to provide an alternative source of DLTtape drives for the DLT
& Storage Systems group's computer equipment manufacturer customers.

Manufacturing

The DLT & Storage Systems group manufactures DLTtape drives, autoloaders and
solid state storage systems in its Colorado Springs, Colorado facility and tape
libraries in its Irvine, California facility. The DLT & Storage Systems group
also has a logistics site in Dundalk, Ireland. All of the DLT & Storage Systems
group's DLTtape media cartridges are manufactured by third parties--primarily
Fuji and Maxell.

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Research and Development

The DLT & Storage Systems group invested approximately $30 million, $63
million and $99 million in research and development in fiscal years 1997, 1998
and 1999, respectively. The DLT & Storage Systems group is focusing its
research and development efforts on the development of new DLTtape drives,
autoloaders and libraries, solid state storage systems, network attached
storage appliances and software storage architectures. In particular, the DLT &
Storage Systems group is currently developing a tape drive based on Super
DLTtape technology. The DLT & Storage Systems group maintains research and
development facilities in Shrewsbury, Massachusetts; Irvine, California;
Boulder, Colorado; and Milpitas, California.

Competition

In the mid-range network server market for tape drives, the DLT & Storage
Systems group competes primarily with Exabyte, Hewlett-Packard, Sony and
StorageTek. In particular, Hewlett-Packard, IBM and Seagate have formed a
consortium to develop new tape drive products using linear tape open
technology. Such products will target the high-capacity data storage market and
are expected to compete with Super DLTtape technology. Key competitive factors
in the tape storage market include capacity, reliability, durability,
scalability, compatibility and cost.

ADIC, Breece Hill, Exabyte, Hewlett-Packard, Overland Data and StorageTek
also offer tape libraries incorporating DLTtape technology. If DLTtape
continues to maintain broad market acceptance in the mid-range network server
market, the DLT & Storage Systems group believes many of these companies will
continue to improve the functionality and performance of their tape libraries
designed for DLTtape technology. The DLT & Storage Systems group also expects
increased competition from large integrated computer equipment companies, many
of whom have historically incorporated their own tape storage products into
their mainframe systems, and are broadening their focus on the enterprise-wide
computing market.

The DLT & Storage Systems group believes that, although there are several
start-up companies focusing on the development of workgroup-level network
attached storage appliances, it will be the first established storage company
to enter this market. In addition, several established competitors provide
department-level network attached storage appliances at higher price points
including Network Appliance, Inc. and Auspex Systems, Inc. Large traditional
suppliers of general purpose computer servers also offer specialized server
storage solutions. Any one of these companies, or any other company, could
introduce network attached storage appliances or another similar storage
solution targeted at workgroup-level applications that could result in
increased competition with the DLT & Storage Systems group's network attached
storage appliances.

Warranty and Service

The DLT & Storage Systems group generally warrants its products against
defects for a period of one to three years from the date of sale. The DLT &
Storage Systems group generally provides warranty service on DLTtape drives on
a return to factory basis. The DLT & Storage Systems group's tape libraries
generally have a warranty period of one year, with service agreements available
to customers for additional years of warranty service. The DLT & Storage
Systems group maintains in-house product repair facilities in Colorado Springs,
Colorado, and Dundalk, Ireland to support warranty and service obligations for
tape drives, libraries and solid state storage systems. The DLT & Storage
Systems group also performs tape library warranty service in its facility in
Irvine, California. In addition, third party service providers throughout the
world perform tape library warranty service.

Employees

At March 31, 1999, the DLT & Storage Systems group had approximately 1,950
regular employees. In addition, approximately 860 employees perform services
for both the DLT & Storage Systems group and the Hard Disk Drive group. In the
advanced electronics industry, competition for highly skilled employees is
intense. The DLT & Storage Systems group believes that a great part of its
future success will depend on the DLT & Storage Systems group's ability to
attract and retain highly skilled employees. None of the DLT & Storage Systems
group's employees are represented by a union, and the DLT & Storage

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Systems group has experienced no work stoppages. The DLT & Storage Systems
group believes that its employee relations are favorable.

Management

The following table sets forth certain information with respect to the
executive officers of the DLT & Storage Systems group:

<TABLE>
<CAPTION>
Name Age Position
---- --- --------
<C> <C> <S>
Peter van Cuylenburg.. 51 President
Kevin Daly, Ph.D...... 54 Chief Executive Officer of ATL
Ed Gardner............ 48 Vice President, Human Resources
Brodie Keast.......... 43 Vice President and General Manager, DLT
George Saliba......... 47 Chief Technology Officer and Vice President,
Advanced Storage Products
Tex Schenkkan......... 42 Vice President and General Manager, New Businesses
</TABLE>

Mr. van Cuylenburg has been President of the DLT & Storage Systems group
since joining Quantum in 1996. From 1993 to 1995, Mr. van Cuylenburg served as
Executive Vice President, responsible for the systems sector, at Xerox
Corporation. From 1992 to 1993, Mr. van Cuylenburg was President and Chief
Operating Officer at NeXT Computer Inc.

Dr. Daly has been Chief Executive Officer and Chairman of ATL since ATL's
formation in 1991. Since 1985, Dr. Daly was with ATL's former parent, Odetics,
Inc., most recently as Chief Technical Officer and a member of the Board of
Directors. From 1974 to 1985, he was Director of the Control and Dynamics
Division of the Charles Stark Draper Laboratory in Cambridge, Massachusetts.
During this time he was also Adjunct Professor at MIT. Dr. Daly is currently
chairman of the Industrial Advisory Board of the Center for Research on
Information Technology and Organizations at the University of California,
Irvine.

Mr. Gardner has been Vice President, Human Resources since 1997. Mr. Gardner
joined Quantum in 1996 as Director of Human Resources for the High-End Storage
Division and technology and engineering. Prior to joining Quantum, Mr. Gardner
served as Vice President of Human Resources and Facilities at Spectro Physics
Lasers Inc. for eight years.

Mr. Keast has been Vice President and General Manager of the DLT division
since 1997. Mr. Keast joined Quantum in 1996 as Vice President of Marketing for
the DLT division. Prior to joining Quantum, Mr. Keast spent 11 years at Apple
in a variety of marketing management positions.

Mr. Saliba has been Chief Technology Officer and Vice President of the
Advanced Storage Products division since 1998. From 1995 to 1998 Mr. Saliba
served as Vice President of Engineering for the DLT division. Following the
acquisition of certain businesses from Digital Equipment, Mr. Saliba joined the
Company in 1994 as Director of Engineering. Previously, he spent eight years as
Group Engineering Manager for Digital Equipment's tape products group.

Mr. Schenkkan has been Vice President and General Manager, New Businesses
since 1998. Before joining Quantum in 1996 as Vice President of Corporate
Development, Mr. Schenkkan spent 12 years at Hewlett-Packard where he held a
variety of marketing management and business development positions.

Technology

Both the DLT & Storage Systems group and the Hard Disk Drive group will have
access to all of Quantum's technology and know-how, excluding products and
services of the other group, that may be useful in that group's business. The
DLT & Storage Systems group and the Hard Disk Drive group will consult each
other on a regular basis concerning technology issues that affect both groups.

Quantum has been granted and/or owns by assignment 477 United States
patents. In general, these patents have 17-year terms from the date of
issuance. Quantum also has certain foreign patents and applications relative to
certain of the products and technologies. Although the DLT & Storage Systems
group believes that its patents and applications have significant value, the
rapidly changing computer industry technology makes the DLT & Storage Systems
group's future success

59
<PAGE>

dependent primarily upon the technical competence and creative skills of our
personnel rather than on patent protection.

Several companies and individuals have approached the DLT & Storage Systems
group concerning the need for a license under patented technology that the DLT
& Storage Systems group assertedly used, or is assertedly using, in the
manufacture and sale of one or more of its products. The DLT & Storage Systems
group conducts ongoing investigations into these assertions and presently
believes that any licenses ultimately determined to be required could be
obtained on commercially reasonable terms. However, the DLT & Storage Systems
group cannot assure you that such licenses are presently obtainable, or if
later determined to be required, could be obtained on commercially reasonable
terms or at all.

Quantum has signed cross-licensing agreements with Hewlett-Packard, IBM,
Seagate and others. These agreements enable the DLT & Storage Systems group to
use certain patents owned by these companies, and enables these companies to
use certain patents owned by Quantum.

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<PAGE>

THE DLT & STORAGE SYSTEMS GROUP

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS

You should read this discussion along with the DLT & Storage Systems group's
combined financial statements contained in this proxy statement. Historical
results and percentage relationships may not necessarily be indicative of
operating results for any future periods.
Overview

The DLT & Storage Systems group derives its revenue from the following
sources:

. DLTtape Drives. The DLT & Storage Systems group has generally experienced
increasing sales and attractive gross margins for its DLTtape drives due
to increasing acceptance of DLTtape drives as the de facto industry
standard in the mid-range network server market. During fiscal years 1997
through 1999, the number of mid-range network servers with tape storage
back-up capability increased significantly with the growth of mission
critical server-based computing, and the DLT & Storage Systems group
expects this trend to continue.

. DLTtape Media Cartridges and Royalty. The DLT & Storage Systems group
derives a substantial portion of its revenue from direct sales of DLTtape
media cartridges and royalties received from licensed DLTtape media
cartridge providers. As the installed base of DLTtape drives increases,
additional DLTtape media cartridges are consumed resulting in continuing
purchases during the productive life of the DLTtape drive. DLTtape media
cartridges are manufactured for the DLT & Storage Systems group primarily
by Fuji and Maxell. These media cartridge manufacturers are first
required to satisfy all of the DLT & Storage Systems group's media
cartridge requirements, after which time they are permitted to sell to
third parties in exchange for a royalty fee payable to the DLT & Storage
Systems group.

Prior to fiscal year 1999, almost all DLTtape media cartridges were sold
directly by the DLT & Storage Systems group. However, during fiscal year
1999, increased DLTtape media cartridge availability allowed the media
cartridge manufacturers to sell DLTtape media cartridges, for which the
DLT & Storage Systems group receives royalties. The DLT & Storage Systems
group estimates that in fiscal year 1999, sales by the media cartridge
manufacturers accounted for approximately two-thirds of total DLTtape
media cartridge sales, and the DLT & Storage Systems group accounted for
the balance. This compares to fiscal year 1998 sales by the media
cartridge manufacturers of approximately one-quarter of total DLTtape
media cartridge sales. Royalty receipts by the DLT & Storage Systems
group are reported as royalty revenue, which is significantly lower than
the equivalent DLTtape media cartridge revenue for the DLT & Storage
Systems group. However, this royalty model has generated income from
operations comparable to that generated by DLTtape media cartridge sales
made directly by the DLT & Storage Systems group.

. Storage Systems. Storage systems revenue includes both tape libraries and
services and solid state storage systems. The acquisition of ATL in
September 1998 combined ATL's mid-range to high-end tape library product
line and services with the DLT & Storage Systems group's autoloader
products, thereby increasing sales in the storage systems category. Sales
of solid state storage systems have been declining in large part due to
falling dynamic random access memory prices, which have translated into
lower unit prices for these products, and a slight decline in unit
volume.

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<PAGE>

The table below summarizes the components of the DLT & Storage Systems
group's revenue:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------
1997 1998 1999
-------- ---------- ----------
(In thousands)
<S> <C> <C> <C>
DLTtape Drives and Media Cartridges
Tape drives................................. $392,387 $ 783,831 $ 871,977
Media cartridge product..................... 220,404 283,480 195,064
Media cartridge royalty..................... 8,088 27,075 121,463
Storage Systems
Tape libraries and service.................. 95,981 87,197 148,342
Solid state storage systems................. 11,153 8,217 5,764
Intra-group elimination*..................... -- -- (39,874)
-------- ---------- ----------
Total revenue.............................. $728,013 $1,189,800** $1,302,736**
</TABLE>
- --------
* Represents intra-group sales of DLTtape drives for incorporation into the
DLT & Storage Systems group's tape libraries.
** Based on reports received from the media cartridge manufacturers, the DLT &
Storage Systems group estimates that if it had sold directly all DLTtape
media cartridges sold by the media cartridge manufacturers and, accordingly,
not collected any royalty revenue, its total revenue would have increased by
$65 million and $301 million in fiscal years 1998 and 1999, respectively.
This shift in revenue did not have any significant effect on the DLT &
Storage Systems group's operating income.

Fluctuating Quarterly Revenue

The discussion below describes the principal factors resulting in
fluctuation of the DLT & Storage Systems group's quarterly revenue for fiscal
years 1997, 1998 and 1999.

. DLTtape Drive Inventory Correction. During fiscal year 1997 and the first
quarter of fiscal year 1998, the DLT & Storage Systems group's supply of
DLTtape drives was not sufficient to meet demand. As a result, in the
first half of fiscal year 1998 a few large customers began building up
larger inventories of DLTtape drives than were required for their normal
operations. As the DLT & Storage Systems group's manufacturing capacity
increased and the DLT & Storage Systems group was able to meet customer
demand for DLTtape drives, these customers reduced their orders to lower
inventories to more typical levels. These actions resulted in reduced
sales of DLTtape drives beginning in the third quarter of fiscal year
1998 and more significantly in the fourth quarter of fiscal year 1998 and
the first quarter of fiscal year 1999.

. Shift in DLTtape Media Cartridge Revenue to Royalty Revenue. From the
third quarter of fiscal year 1998 to the fourth quarter of fiscal year
1999, DLTtape media cartridge revenue decreased from $65 million to $41
million as an increasing percentage of DLTtape media sales were made by
the media cartridge manufacturers. During this same period, the DLT &
Storage Systems group's royalty revenue from sales of DLTtape media
cartridges grew from under $10 million to over $30 million. The royalty
revenue approximates the income from operations that the DLT & Storage
Systems group would have earned had the DLTtape media cartridges been
directly sold by the DLT & Storage Systems group.

. ATL Acquisition. The DLT & Storage Systems group completed the ATL
acquisition at the beginning of the third quarter of fiscal year 1999.
This increased DLTtape library and service revenue in this quarter as the
acquisition combined ATL's mid-range to high-end DLTtape library revenue
with the DLT & Storage Systems group's entry-level DLTtape library
revenue.

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<PAGE>

The table below summarizes the DLT & Storage Systems group's total revenue
by quarter for fiscal years 1997, 1998 and 1999.

<TABLE>
<CAPTION>
Total Revenue
-----------------------------------
1st 2nd 3rd 4th
Quarter Quarter Quarter Quarter
-------- -------- -------- --------
Fiscal Year (In thousands)
<S> <C> <C> <C> <C>
1999....................................... $255,702 $290,458 $366,495 $390,081
1998....................................... 265,005 338,523 330,279 255,993
1997....................................... 128,451 152,917 203,338 243,307
</TABLE>

Results of Operations

Fiscal Year 1999 Compared With Fiscal Year 1998
Revenue. Total the DLT & Storage Systems group revenue in fiscal year 1999
was $1.3 billion, compared to $1.2 billion in fiscal year 1998, an increase of
9%. The increase in revenue reflected increases in DLTtape drive revenue and
total DLTtape media cartridge revenue, and combining ATL's revenue effective
September 28, 1998. The increase in DLTtape drive revenue reflected strong
demand in the second half of fiscal year 1999. Including sales by licensed
media cartridge manufacturers, total DLTtape media cartridge revenue increased.
However, direct DLTtape media cartridge sales by the DLT & Storage Systems
group declined reflecting the shift in a substantial portion of DLTtape media
cartridge revenue from sales by the DLT & Storage Systems group to royalties
from the media cartridge manufacturers.

Sales to the DLT & Storage Systems group's top five customers in fiscal year
1999 represented 53% of revenue, compared to 63% of revenue in fiscal year
1998. These amounts reflected a retroactive combination of the sales to Compaq
and Digital Equipment as a result of their merger in June 1998. Sales to Compaq
were 25% of revenue in fiscal year 1999, compared to 36% of revenue in fiscal
year 1998, including sales made to Digital Equipment. Sales to Hewlett-Packard
were 13% of revenue in fiscal year 1999, compared to 11% of revenue in fiscal
year 1998.

In fiscal year 1999, sales to computer equipment manufacturers and
distribution channel customers were 71% and 17% of revenue, respectively,
compared to 79% and 21% of revenue, respectively, in fiscal year 1998. The
remaining revenue in fiscal year 1999 represented media royalty revenue and
sales to value-added resellers.

Gross Margin Rate. The gross margin rate in fiscal year 1999 was 44.5%,
compared to 42.2% in fiscal year 1998. The 2.3 percentage point increase
reflected an increase in the proportion of overall revenue represented by
royalty revenue. Declines in the gross margin rate earned on DLTtape drives
resulting from price reductions aimed at expanding the overall market for
DLTtape drives partially offset the increase from royalty revenue.

Research and Development Expenses. Research and development expenses in
fiscal year 1999 were $99 million, or 7.6% of revenue, compared to $63 million,
or 5.3% of revenue, in fiscal year 1998. The increase in research and
development expenses reflected higher research and development expenses related
to new tape drive products and to other new information storage products and
technologies, including Super DLTtape technology and, to a significantly lesser
extent, optical storage technology and combining ATL's expenses.

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1999 were $77 million, or 5.9% of revenue, compared to $47 million, or 4.0% of
revenue in fiscal year 1998. This reflected the combining of ATL's expenses and
an increase in marketing and advertising costs associated with DLTtape
products.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1999 were $38 million, or 2.9% of revenue, compared to $22 million,
or 1.9% of revenue, in fiscal year 1998. The increase in general and
administrative expenses reflected expansion of the DLT & Storage Systems
group's infrastructure to support increased revenue and earnings growth and the
combining of ATL's expenses.

Purchased In-process Research and Development Expense. The DLT & Storage
Systems group expensed purchased in-process research and development costs of
$89 million as a

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<PAGE>

result of the ATL acquisition in fiscal year 1999. For additional information
regarding the ATL acquisition and the costs associated with in-process research
and development, see Note 5 of the Notes to Combined Financial Statements.

Interest and Other Income/Expense. Net interest and other income and expense
in fiscal year 1999 was $12 million expense, compared to $3 million expense in
fiscal year 1998. The increase reflected a $6.8 million write-down of an equity
investment. In addition, the increase reflected a reduction in interest income
as cash was used to purchase treasury stock prior to the ATL acquisition. A
reduction in interest expense partially offset this increase.

Income Taxes. The DLT & Storage Systems group's effective tax rate in fiscal
year 1999, excluding the write-off of the purchased in-process research and
development, was 40%, compared to 39% in fiscal year 1998. The DLT & Storage
Systems group recorded a provision for income taxes at an effective rate of
53.5% of pretax earnings in fiscal year 1999. This higher effective tax rate
was primarily attributable to the impact of the purchased in-process research
and development write-off, for which a tax benefit is not recognizable, and a
lower research and development credit.

Net Income. The DLT & Storage Systems group reported net income in fiscal
year 1999 of $123 million, compared to $224 million in fiscal year 1998. The
decrease primarily resulted from the charge for purchased in-process research
and development of $89 million. Excluding the charge, net income was $212
million, a decrease of $12 million. This decrease reflected increased
amortization of goodwill and other intangible assets resulting from the ATL
acquisition, increased operating expenses and decreased interest income. This
decrease was partially offset by an increase in gross profit.

Fiscal Year 1998 Compared With Fiscal Year 1997

Revenue. Total revenue in fiscal year 1998 was $1.2 billion, compared to
$728 million in fiscal year 1997, an increase of 63%. The increase in total
revenue resulted from an increase in DLTtape drive and DLTtape media cartridges
product shipments. The increase in total revenue reflected growth in market
acceptance of DLTtape technology and a shift in sales mix to higher storage
capacity products which carry a higher per unit price. However, the average
price at each storage capacity level of DLTtape drives and DLTtape media
cartridge products declined when compared with fiscal year 1997.

The increase in DLTtape drive shipments reflected, in part, an increase in
tape drive production volume, which was at a level high enough to meet product
demand beginning in the third quarter of fiscal year 1998. However, the general
availability of DLTtape drives resulted in sequentially lower DLTtape drive
sales in the fourth quarter of fiscal year 1998 as certain computer equipment
manufacturer customers reduced purchases in order to adjust their inventory
levels.

Sales to the DLT & Storage Systems group's top five customers were 63% of
revenue in fiscal years 1998 and 1997. This amount reflects a retroactive
combination of the sales to Compaq and Digital Equipment. Sales to Compaq were
36% of revenue in fiscal year 1998, compared to 35% of revenue in fiscal year
1997, including sales to Digital Equipment. Sales to Hewlett Packard were 11%
of revenue in fiscal year 1998, compared to 14% of revenue in fiscal year 1997.

Sales to computer equipment manufacturers and distribution channel customers
were 79% and 21% of revenue, respectively, in fiscal year 1998, compared to 77%
and 23% of revenue, respectively, in fiscal year 1997.

Gross Margin Rate. The gross margin rate was 42.2% in fiscal year 1998,
compared to 37.1% in fiscal year 1997. The 5.1 percentage point increase
reflected an increase in the gross margin rate earned on DLTtape drives and
DLTtape media cartridges as sales shifted to the higher margin DLT7000.

Research and Development Expenses. Research and development expenses in
fiscal year 1998 were $63 million, or 5.3% of revenue, compared with $30
million, or 4.1% of revenue, in fiscal year 1997. The $33 million increase in
research and development expenses reflected higher expenses related to new
information storage products and technologies, including Super DLTtape
technology and, to a significantly lesser extent, optical storage technology.

64
<PAGE>

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1998 were $47 million, or 4.0% of revenue, compared with $24 million, or 3.3%
of revenue, in fiscal year 1997. This increase primarily reflected the
increased costs associated with supporting the DLT & Storage Systems group's
higher sales volume.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1998 were $22 million, or 1.9% of revenue, compared with $11
million, or 1.6% of revenue, in fiscal year 1997. The increase in general and
administrative expenses reflected expansion of the DLT & Storage Systems
group's infrastructure to support increased shipments and revenue growth.

Interest and Other Income/Expense. Net interest and other income and expense
in fiscal year 1998 was $3 million expense, compared with $26 million expense
in fiscal year 1997. A decrease in interest expense reflecting a year-over-year
decrease in the average level of debt used to finance operations, and an
increase in year-over-year average level of cash, combined to cause this
change.

Income Taxes. The DLT & Storage Systems group's effective tax rate was 39%
and 40% for fiscal years 1998 and 1997, respectively. The decrease in the tax
rate for fiscal year 1998 was primarily attributable to a research and
development credit.

Net Income. The DLT & Storage Systems group reported net income in fiscal
year 1998 of $224 million, compared to $108 million in fiscal year 1997. The
increase reflected increased total revenue and gross profit, partially offset
by an increase in operating expenses and a reduction in interest income.

65
<PAGE>

Quarterly Operating Results

The following tables present unaudited quarterly operating results for
fiscal years 1999 and 1998. We believe this information reflects all
adjustments that we consider necessary for a fair presentation of such
information in accordance with generally accepted accounting principles. The
results for any quarter are not necessarily indicative of results for any
future period.

<TABLE>
<CAPTION>
Fiscal Year 1999
-----------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Revenue........................ $255,702 $290,458 $366,495 $390,081
Cost of revenue................ 142,028 158,783 205,194 216,812
-------- -------- -------- --------
Gross profit................... 113,674 131,675 161,301 173,269

Operating expenses:
Research and development..... 21,951 21,979 28,155 27,245
Sales and marketing.......... 12,767 14,866 21,715 27,389
General and administrative... 6,447 7,264 11,140 13,307
Purchased in-process research
and development............. -- -- 89,000 --
-------- -------- -------- --------
41,165 44,109 150,010 67,941
-------- -------- -------- --------

Income from operations......... 72,509 87,566 11,291 105,328
Interest and other income
(expense), net................ 100 (663) (2,930) (8,883)
-------- -------- -------- --------
Income before income taxes..... 72,609 86,903 8,361 96,445
Income tax provision........... 29,044 34,760 38,945 38,578
-------- -------- -------- --------
Net income (loss).............. $ 43,565 $ 52,143 $(30,584) $ 57,867
======== ======== ======== ========

<CAPTION>
Fiscal Year 1998
-----------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Revenue........................ $265,005 $338,523 $330,279 $255,993
Cost of revenue................ 158,944 200,515 182,742 145,385
-------- -------- -------- --------
Gross profit................... 106,061 138,008 147,537 110,608

Operating expenses:
Research and development..... 11,146 14,701 17,787 19,191
Sales and marketing.......... 9,479 9,950 13,119 14,696
General and administrative... 4,725 5,537 6,473 5,628
-------- -------- -------- --------
25,350 30,188 37,379 39,515
-------- -------- -------- --------

Income from operations......... 80,711 107,820 110,158 71,093
Interest and other income
(expense), net................ 709 (1,713) (1,855) (269)
-------- -------- -------- --------
Income before income taxes..... 81,420 106,107 108,303 70,824
Income tax provision........... 31,754 41,381 42,239 27,621
-------- -------- -------- --------
Net income..................... $ 49,666 $ 64,726 $ 66,064 $ 43,203
======== ======== ======== ========
</TABLE>

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<PAGE>

Our quarterly and annual operating results have fluctuated in the past and
are likely to fluctuate significantly in the future due to a variety of
factors, many of which are outside of our control. Because of these and other
factors, our quarterly revenue, expenses and results of operations could vary
significantly in the future, and period-to-period comparisons should not be
relied upon as indications of future performance. We may not be able to
increase our revenue in future periods or be able to sustain our existing level
of revenue or our rate of revenue growth on a quarterly or annual basis. In
addition, our annual or quarterly operating results may not meet the
expectations of securities analysts and investors. If this happens, the trading
price of our common stock could significantly decline.

Recent Accounting Pronouncements

In June 1997, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards ("SFAS") No. 130, "Reporting
Comprehensive Income," which the DLT & Storage Systems group implemented in
fiscal year 1999. SFAS No. 130 establishes standards for reporting and display
of comprehensive income and its components--revenue, expenses, gains, and
losses--in a full set of general-purpose financial statements. The adoption of
SFAS No. 130 changed financial statement presentation but did not have an
impact on the DLT & Storage Systems group's financial position or results of
operations.

In June 1997, the FASB issued SFAS No. 131, "Disclosure about Segments of an
Enterprise and Related Information," requires certain financial and descriptive
information about a company's reportable operating segments. The DLT & Storage
Systems group adopted SFAS No. 131 in fiscal year 1999. The adoption of SFAS
No. 131 applies solely to disclosure and will not have an impact on the DLT &
Storage Systems group's financial position or results of operations.

Liquidity and Capital Resources

Operating Activities. The DLT & Storage Systems group generated cash from
operations of $217 million during fiscal year 1999. The DLT & Storage Systems
group's cash provided by operations in fiscal year 1998 was $203 million.

Investing Activities. Investments during fiscal year 1999 were $35 million,
which consisted primarily of investments in property and equipment. Investments
in fiscal year 1998 totaled $62 million.

Financing Activities. At March 31, 1999, and March 31, 1998, Quantum's debt
allocated to the DLT & Storage Systems group was $230 million and $219 million,
respectively. Debt allocated to the DLT & Storage Systems group bears interest
at a rate equal to the weighted average interest rate of Quantum's total debt,
calculated on a quarterly basis. At March 31, 1999, Quantum had total debt of
$345 million with an average interest rate of 7.3%. In the future, each group's
debt will increase or decrease by the amount of any cash provided by or used
for the group's operating activities, investing activities, share repurchases
or issuances and other non-debt-related financing activities. See Note 1 to
Combined Financial Statements for further discussion of financing activities.

In December 1998, ATL entered into a senior credit facility that provides a
$35 million revolving credit line to ATL. The revolving credit line is co-
terminous with Quantum's $500 million revolving credit line, expiring in June
2000. At the option of ATL, borrowings under the revolving credit line bear
interest at either London interbank offered rate plus a margin determined by
Quantum's total funded debt ratio, or at a base rate, with option periods of
one to six months. At March 31, 1999, $18 million was outstanding on this
revolving credit line.

Quantum filed a registration statement which became effective on July 24,
1997, pursuant to which Quantum may issue debt or equity securities, in one or
more series or issuances, limited to $450 million aggregate public offering
price. Under the registration statement, in July 1997, Quantum issued $288
million of 7% convertible subordinated notes. The notes mature on August 1,
2004, and are convertible at the option of the holder at any time prior to
maturity, unless previously redeemed, into shares of Quantum's common stock at
a conversion price of $46.325 per share. Quantum has the option to redeem the
notes on or after August 1, 1999 and prior to August 1, 2001, under certain
conditions related to the price of Quantum's common stock. Subsequent to August
1, 2001, Quantum may redeem the notes at any time. In the event of certain
changes involving all or substantially all of

67
<PAGE>

Quantum's common stock, the holder would have the option to redeem the notes.
Redemption prices range from 107% of the principal to 100% at maturity. The
notes are unsecured obligations subordinated in right of payment to all of
Quantum's existing and future senior indebtedness.

If the tracking stock proposal is implemented, each of the 7% convertible
subordinated notes, which currently are convertible into shares of existing
common stock, will become convertible into shares of the DLT & Storage Systems
group stock and shares of Hard Disk Drive group stock. The number of shares of
the DLT & Storage Systems group stock and Hard Disk Drive group stock into
which each note will be convertible is equal to the numbers of shares which the
holder of the note would receive under the tracking stock proposal had such
note been converted immediately prior to the implementation of the tracking
stock proposal. The notes will not be separately convertible into solely the
DLT & Storage Systems group stock or solely Hard Disk Drive group stock. The
exercise price and maturity date of each convertible note will not be affected
by the implementation of the tracking stock proposal.

In June 1997, Quantum entered into an unsecured senior credit facility that
provides a $500 million revolving credit line and expires in June 2000. At
Quantum's option, borrowings under the revolving credit line bear interest at
either London interbank offered rate plus a margin determined by our total
funded debt ratio, or at a base rate, with option periods of one to six months.
At March 31, 1999, there was no outstanding balance drawn on this line.

In September 1996, Quantum entered into a $42 million mortgage financing
related to certain domestic facilities at an effective interest rate of
approximately 10.1%. The term of the mortgage is 10 years. Quantum is required
to make monthly payments based on a 20-year amortization period, and a balloon
payment at the end of the 10-year term.

The DLT & Storage Systems group expects to spend approximately $70 million
in fiscal year 2000 for capital equipment and leasehold improvements. These
capital expenditures will support the expansion of the DLTtape product line,
production of Super DLTtape products and DLT & Storage Systems group's general
infrastructure.

The DLT & Storage Systems group expects its cash flow from operations,
together with available financing sources, will be sufficient to meet all
currently planned expenditures and sustain operations for the next 12 months.
However, this belief assumes that operating results and cash flow from
operations will meet our expectations.

In May 1999, Quantum announced a definitive agreement to acquire Meridian
Data, Inc., pending approval of Meridian's stockholders and certain other
closing conditions. Meridian is a developer and manufacturer of network
attached storage solutions utilizing both conventional hard disk drive and
optical disk technologies for the PC local area network environment.

Under the terms of the definitive agreement, Meridian's stockholders will
receive either Quantum common stock or both DLT & Storage Systems group stock
and Hard Disk Drive group stock, depending on the timing and outcome of the
tracking stock proposal and the proposed Meridian acquisition, which is
expected to be completed by September 1999. If the acquisition is completed
prior to the implementation of the tracking stock proposal, each outstanding
share of Meridian's common stock will be converted into 0.489 of a share of
Quantum common stock, subject to adjustment based on the trading range of
Quantum common stock prior to the completion of the acquisition. If the
tracking stock proposal is implemented prior to the completion of the Meridian
acquisition, each outstanding share of Meridian's common stock will be
converted into 0.489 of a share of DLT & Storage Systems group stock and 0.2445
of a share of Hard Disk Drive group stock, subject to adjustment based on the
trading range of DLT & Storage Systems group stock and Hard Disk Drive group
stock prior to the completion of the acquisition. In addition, under the terms
of the proposed transaction, all Meridian stock options will be assumed by
Quantum. The acquisition will be accounted for as a purchase, and the DLT &
Storage Systems group expects to recognize a charge for purchased in-process
research and development upon closing of the acquisition.

Meridian had revenue of $4 million and $18 million in the quarter ended
March 31, 1999, and the year ended December 31, 1998, respectively. At March
31, 1999, Meridian had total cash and

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<PAGE>

marketable securities of $15 million. At December 31, 1998, Meridian had a net
operating loss carryforward for U.S. federal income tax purposes of
approximately $32 million.

BUSINESS OF THE HARD DISK DRIVE GROUP

The Hard Disk Drive group designs, develops and markets a diversified
product portfolio of hard disk drives featuring leading-edge technology. A hard
disk drive is a storage device found in most computers that stores data on
multiple rotating magnetic disks that provide fast access to data that must be
readily available to computer users. The Hard Disk Drive group's hard disk
drives are designed for the desktop market and the high-end hard disk drive
market which requires faster and higher capacity disk drives--as well as the
emerging market for hard disk drives specially designed for consumer
electronics applications such as new TV recording devices. The Hard Disk Drive
group has been the leading volume supplier of hard disk drives for the desktop
market for each of the past six years. According to Dataquest, The Hard Disk
Drive group's market share in the desktop market has grown from 3% in 1990 to
an industry leading 22% in 1998.

. dedicated sites that store large volumes of data;

. network servers such as those used for Internet and intranet services,
online transaction processing and enterprise wide applications;

. high-speed computers used for specialized engineering design software;
and

. computer systems incorporating a large number of shared hard disk drives.

The Hard Disk Drive group recently introduced two new hard disk drives
designed for the developing consumer electronics market. These hard disk drives
utilize Quantum QuickView(TM)--The Hard Disk Drive group's hard disk drive
technology designed for consumer electronics. The use of hard disk drive
technology makes it possible to simultaneously record and playback video
content and to rapidly and inexpensively access large amounts of video
content--capabilities that are not as well suited to competing technologies
such as video tape and digital video disk.

Industry Background

Market for Hard Disk Drives. The demand for hard disk drives continues to
grow due to:

. increasing demand for desktop computers, driven in part by continued
improvements in desktop computing price-to-performance ratios;

. the substantial growth of the sub-$1,000 PC market, particularly in the
home;

. the rapid accumulation of data resulting from the growth in digital
content--audio, video and data;

. the exchange of increasing volumes of data among users across the
Internet and intranets with the proliferation of computing systems
accessed by multiple users;

. the growth of the server and workstation market due in large part to the
migration of workstation and server applications to more cost-effective
platforms; and

. the trend of consumer electronic content moving from analog to digital
form and the creation of a wide variety of new consumer electronic
applications such as new TV recording devices.

In December 1998, Dataquest forecasted that annual demand for the worldwide
desktop computer market would grow from approximately 78 million units in 1998
to 133 million units in 2002, reflecting a compound annual growth rate of
approximately 14%. International Data Corporation forecasts the annual demand
for both the desktop and high-end hard disk drive markets to grow at 15% over
the same period with the desktop disk drive market growing from approximately
111 million units to 194 million units and the high-end hard disk drive market
growing from approximately 15 million units to 27 million units.

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<PAGE>

Hard Disk Drive Market Challenges. The growing demand for hard disk drives
has led to intensified competition. The hard disk drive market is characterized
by rapid technological change, increasing capacity and performance; rapid
product obsolescence; changing customer requirements; dramatic shifts in market
share; and significant erosion of average selling prices.

The Hard Disk Drive group, IBM, Seagate and Western Digital have
traditionally had the highest market share with leading computer equipment
manufacturers. Over the last two years, hard disk drive suppliers such as
Fujitsu, Maxtor and Samsung have introduced new hard disk drive products and
gained market share with leading computer equipment manufacturers. The
competitive environment, together with the growth of the sub-$1,000 PC market,
has placed continuous downward pressure on hard disk drive prices. This
pressure, in turn, has reduced average gross margins for hard disk drive
suppliers.

In addition to increasing competition, the leading PC computer equipment
manufacturers have been gaining market share which has increased their
influence. In calendar year 1997 and 1998, the top ten PC computer equipment
manufacturers accounted for more than 50% of all PC shipments and most of the
growth in the PC market. In addition, the top four server and workstation
computer equipment manufacturers accounted for almost 50% of server and
workstation units shipped in calendar 1998. As a result, maintaining customer
satisfaction with these leading computer equipment manufacturers has become
even more critical.

Computer equipment manufacturers face substantial market pressures to lower
costs and improve customer satisfaction. Historically, hard disk drive failure
has been the leading cause for PC returns and end-user dissatisfaction. As a
result, computer equipment manufacturers place a high value on consistently
receiving reliable hard disk drives from their suppliers.

Hard disk drive suppliers have had to manage their businesses to meet these
challenges. Computer equipment manufacturers typically seek to qualify up to
three or four providers for each generation of hard disk drives. To achieve
consistent success with computer equipment manufacturers qualifications, a hard
disk drive supplier must be an early provider of next generation hard disk
drives featuring leading technology and high capacity per disk which increases
the storage capacities for hard disk drives. Suppliers must quickly achieve
volume production of high quality and reliable hard disk drives. To quickly
achieve high volume production, a disk drive supplier must have access to
flexible, high-capacity, high-quality and dedicated manufacturing capabilities.
Factors on which computer equipment manufacturers evaluate their hard disk
drive suppliers include ease of doing business, overall quality, storage
capacities, performance characteristics, price and the supplier's long-term
financial stability.

The Hard Disk Drive Group Solution

The Hard Disk Drive group offers one of the industry's most diversified hard
disk drive product portfolios featuring leading-edge technology and reliable
hard disk drives. The Hard Disk Drive group focuses on providing consistent,
high-quality products, quickly achieving high volume production and maintaining
excellent customer satisfaction. The Hard Disk Drive group continues to develop
new and improved hard disk drive technology for the desktop and high-end
markets and the emerging consumer electronics market.

The core strengths of the Hard Disk Drive group include:

. Strong Relationships with Computer Equipment Manufacturers. The Hard Disk
Drive group sells its hard disk drives to each of the top ten leading PC
computer equipment manufacturers including Acer America Corporation,
Apple Computer, Compaq, Dell, Fujitsu, Gateway, Inc., Hewlett-Packard,
IBM, Packard Bell/NEC, Inc. and Siemens AG. According to International
Data Corporation, the Hard Disk Drive group had the highest desktop hard
disk drive market share with leading computer equipment manufacturers for
each of the calendar years 1993-1998.

. Manufacturing Partnership with Matsushita-Kotobuki. Matsushita-Kotobuki
is the exclusive manufacturer of the Hard Disk Drive group's hard disk
drives. The Hard Disk Drive group believes

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<PAGE>

that it has been able to maintain a leadership position in the hard disk
drive market by integrating its engineering and design expertise with
Matsushita-Kotobuki's high-volume, highly automated manufacturing
capabilities. This partnership gives the Hard Disk Drive group the ability
to quickly achieve high volume production of high-quality and reliable
hard disk drives without a significant ongoing investment in manufacturing
assets. As a result, the Hard Disk Drive group has achieved higher
inventory turnover and has the potential for higher returns on invested
capital than the industry average.

. Leading Customer Satisfaction. The Hard Disk Drive group ranked among the
best hard disk drive suppliers in customer satisfaction according to
quarterly business reviews summarizing the status of supplier
performance. The Hard Disk Drive group believes the following four
factors contribute to its high customer satisfaction ratings:

1) Quality and Reliability. The Hard Disk Drive group's focus on
providing high quality, reliable hard disk drives begins at the design
and development phase and continues through extensive pre-production
reliability testing, strategic use of Matsushita-Kotobuki's automated
manufacturing, long-term relationships with high-performing suppliers
and solid, consistent execution. In addition, the Hard Disk Drive
group has added two unique features to its hard disk drives: the Shock
Protection System(TM), which reduces potential damage to the hard disk
drive in the case of poor handling, and the Data Protection
System(TM), which is a diagnostic software application that reduces
the product return rate by allowing users to determine whether a
computer failure has resulted from a hard disk drive malfunction. The
Hard Disk Drive group's consistent execution and stringent quality
standards, along with the introduction of Shock Protection System and
Data Protection System, have resulted in the Hard Disk Drive group
having the lowest rate of defects per million at three leading PC
computer equipment manufacturers and two leading server and
workstation computer equipment manufacturers.

2) Time-to-Market/Time-to-Volume. The Hard Disk Drive group achieves a
leading position in time-to-market with each generation of hard disk
drives through internal technology development, relationships with key
component suppliers and an integrated design and development process
with Matsushita-Kotobuki. Demonstrating the Hard Disk Drive group's
time-to-market leadership, in March 1999, the Hard Disk Drive group
announced the introduction of Fireball CX which features industry
leading 6.8GB capacity per disk and is the first Hard Disk Drive group
hard disk drive to incorporate giant magneto-resistive heads. In
addition, the Hard Disk Drive group's technology advances in channels,
interface and cache architecture have led to consistently high
benchmark performances for its Fireball and Fireball Plus product
lines. The Hard Disk Drive group quickly achieves high volume
production by capitalizing on Matsushita-Kotobuki's highly automated
manufacturing facilities and manufacturing expertise. For example,
with Matsushita-Kotobuki, the Hard Disk Drive group completed one of
the fastest conversions to the latest generation of magneto-resistive
recording heads in the industry and quickly achieved volume
production. The Hard Disk Drive group expects to complete a similar
transition to giant magneto-resistive heads.

3) Competitive Cost. The Hard Disk Drive group focuses on providing the
lowest total cost of ownership through high quality, time-to-volume
products; high inventory turnover; and minimal infrastructure.
Matsushita-Kotobuki provides low cost and superior quality
manufacturing through a high- yielding automated process.

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<PAGE>

4) Ease of doing business. The Hard Disk Drive group focuses development
resources on features that provide tangible, practical benefits for
its customers--technology that enables its customers to provide
superior computer systems to their customers at the lowest total cost
of ownership. The Hard Disk Drive group provides worldwide logistics
capabilities, which include regional service delivery to support
customized production strategies and e-commerce capability with major
customers. In addition, the Hard Disk Drive group offers dedicated
support teams for all its major computer equipment manufacturers
customers. According to quarterly business reviews received from its
customers, the Hard Disk Drive group has been consistently ranked
among the best hard disk drive suppliers in delivery responsiveness.

The Hard Disk Drive Group Strategy

The Hard Disk Drive group's objective is to be the number one supplier of
hard disk drives to each of the desktop, high-end and emerging markets in which
it competes. Key elements of the Hard Disk Drive group's strategy include:

. Maintaining Leadership Position in Desktop Market. The Hard Disk Drive
group has been the leading volume supplier of hard disk drives to the
desktop market over the past six years. The Hard Disk Drive group has
maintained this leadership position while several different competitors
have advanced and then declined in the desktop market. The foundation of
the Hard Disk Drive group's future success will be maintaining its strong
computer equipment manufacturers and distribution relationships to help
position the Hard Disk Drive group for long-term growth. The Hard Disk
Drive group is committed to maintaining its leadership position in the
desktop hard disk drive market by executing its strategy of maintaining
customer satisfaction by focusing on quality, reliability, time-to-
market, time-to-volume, competitive cost and ease of doing business.

. Establishing Leadership in the Computer Server and Workstation Market. In
the fall of 1997, the Hard Disk Drive group began to focus its high-end
business on the fast growing Computer server and workstation market. To
execute on this strategy, the Hard Disk Drive group leverages its
capabilities to produce high quality, reliable hard disk drives and
quickly achieve high volume manufacturing in partnership with Matsushita-
Kotobuki. In addition, during the past year the Hard Disk Drive group has
simplified its high-end product development process by adopting a common
architecture for all its high-end hard disk drives to improve time-to-
market and time-to-volume. The Hard Disk Drive group has continued its
small computer system interface or SCSI interface leadership with the
introduction of its Ultra 160/m interface technology in its Atlas IV
drive and was the first to market with this interface technology. During
the past year, the Hard Disk Drive group has also expanded its customer
base to include each of the top four server and workstation computer
equipment manufacturers and has achieved high customer satisfaction
ratings as measured by customer field returns. In calendar year 1999, the
Hard Disk Drive group will, for the first time, have a complete high-end
product offering, and 7200 RPM and 10,000 RPM hard disk drives with SCSI
and fibre channel interfaces, both of which are high-speed interfaces
used in the enterprise storage market.

. Offering Products That Meet Developing Consumer Electronic Storage
Needs. Consumer electronics applications such as new TV recording
devices represents a developing market opportunity for the Hard Disk
Drive group's hard disk drive technologies. The Hard Disk Drive group
offers customized design capabilities and unique hard disk drive
technologies for consumer applications. The Hard Disk Drive group is
currently developing hard disk drive storage applications in consumer
electronics with Sony, Panasonic Technologies, Inc. and TiVo, Inc., among
others. In December 1998, the Hard Disk Drive group announced a

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<PAGE>

strategic alliance with TiVo to incorporate Quantum QuickView hard disk
drives into a TiVo receiver and began shipping Quantum QuickView in March
1999. This receiver will give customers an in-home personalized television
service with traditional recording capabilities as well as the ability to
simultaneously play and record the same TV program so that the viewer can
begin watching the TV program before it is finished being recorded. The
Hard Disk Drive group also intends to increase consumer awareness of the
Quantum brand name in the consumer electronics market.

Products

Desktop products. The Hard Disk Drive group offers three families of desktop
hard disk drives--the Quantum Bigfoot(TM), Quantum Fireball and Quantum
Fireball Plus. The Quantum Bigfoot family offers 5.25-inch hard disk drives for
PC users. The Quantum Fireball family offers 3.5-inch hard disk drives for
consumer and commercial PCs, as well as entry-level workstations and network
servers. Fireball Plus offers superior performance for power users. The Hard
Disk Drive group began offering its Shock Protection System and Data Protection
System with its recently released desktop products. These features
substantially reduce failure rates with customers and provide increased
reliability and performance.

High-end products. The Hard Disk Drive group also offers a broad line of
high-end 3.5-inch hard disk drives--the Quantum Viking(TM), Quantum Atlas(TM)
and Quantum Atlas 10K families. The Quantum Viking II 3.5-inch hard disk drive
is designed for low-profile applications such as workgroup servers and desktop
workstations, while the Quantum Atlas family offers high-capacity hard disk
drives for high performance storage-intensive applications such as enterprise
servers and storage subsystems. The Hard Disk Drive group began offering the
Shock Protection System with its recently released high-end products.

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<PAGE>

The table below sets forth key performance characteristics for The Hard Disk
Drive group's current products:

<TABLE>
<CAPTION>
Capacity Product Rotational
per Disk Capacity Speed
Products (GB) (GB) (RPM) Platform
-------- -------- ----------- ---------- --------
<C> <C> <C> <C> <S>
Bigfoot TS 6.4 6.4 to 19.2 4,000 Desktop PCs--Value, with
Ultra ATA interface, 5.25-
inch media

Fireball EX 3.4 3.2 to 12.9 5,400 Desktop PCs--Performance,
with Ultra ATA interface,
Shock Protection System

Fireball CR 4.3 4.3 to 13.0 5,400 Desktop PCs--Value, with
Ultra ATA/66 interface, Shock
Protection System and Data
Protection System

Fireball Plus KA 4.5 6.4 to 18.2 7,200 Desktop PCs--Performance,
with Ultra ATA/66 interface,
Shock Protection System and
Data Protection System

Fireball CX 6.8 6.4 to 20.4 5,400 Desktop PCs--Value, with
Ultra ATA/66 interface, Shock
Protection System and Data
Protection System

Viking II 1.8 4.5 to 9.1 7,200 PC Servers and Workstations,
with Ultra2 SCSI Low Voltage
Differential (LVD) or Ultra
SCSI interface

Atlas III 1.8 4.5 to 18.2 7,200 Servers and Storage
Subsystems, Ultra2 SCSI Low
Voltage Differential/Ultra
SCSI interface

Atlas IV 4.5 9.1 to 36.4 7,200 Servers, Workstations and
Storage Subsystems, with
Ultra 160/m SCSI interface,
Shock Protection System

Atlas 10K 3.0 9.1 to 36.4 10,000 Enterprise Servers and
Storage Subsystems, with
Ultra 160/m SCSI interface or
Fibre Channel optional
interface, 3-inch media,
Shock Protection System
</TABLE>

Customers

The Hard Disk Drive group markets its products to leading computer equipment
manufacturers, including Acer, Apple, Compaq, Dell, Fujitsu, Gateway, Hewlett-
Packard, IBM, Packard Bell/NEC and Siemens. Because the leading computer
equipment manufacturers have a dominant market share for the computer systems
into which the Hard Disk Drive group's products are incorporated, the Hard Disk
Drive group's sales are concentrated with several key customers.

Sales to the Hard Disk Drive group's top five customers in fiscal year 1999
represented 43% of revenue, compared to 44% of revenue in fiscal year 1998.
These amounts reflected a retroactive combination of the sales to Compaq and
Digital Equipment as a result of their merger in June 1998. Sales to Hewlett-
Packard were 14% of revenue in both fiscal years 1999 and 1998. Sales to Compaq
were 10% of revenue in fiscal year 1999, compared to 12% of revenue in fiscal
year 1998, including sales to Digital Equipment.

Sales and Marketing

The Hard Disk Drive group markets its products directly to manufacturers of
desktop PCs, servers and workstations. Key domestic and international OEM
customers include Acer, Apple, Apricot Computers Limited, Compaq, Dell,
Fujitsu, Gateway, Hewlett-Packard, IBM, LG Electronics Inc., Packard Bell/NEC,
Samsung and Siemens.

In addition to its strong base of computer equipment manufacturer customers,
the Hard Disk Drive group markets its products through a domestic and
international network of commercial and industrial distributors located in more
than 25 countries worldwide. This network includes Bell Microproducts, Inc.,
Computer 2000 AG, Ingram Micro Inc. and Wyle Electronics. Through this network,
the Hard Disk Drive group's hard disk drive products reach smaller computer
equipment manufacturers, systems integrators, value-added resellers, dealers
and retailers.

The Hard Disk Drive group supports international sales and operations by
maintaining regional European headquarters in Neuchatel, Switzerland; a
Japanese headquarters in Tokyo; and

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<PAGE>

additional sales offices in Singapore and throughout the world. The Hard Disk
Drive group's international sales, including sales to foreign subsidiaries of
U.S. companies, were 55% of the Hard Disk Drive group's revenue in fiscal year
1999, and 57% and 54% of revenue for fiscal years 1997 and 1998, respectively.

Manufacturing

Matsushita-Kotobuki manufactures all of The Hard Disk Drive group's hard
disk drives at facilities located in Japan, Singapore and Ireland. Matsushita-
Kotobuki's state-of-the-art manufacturing process is highly automated,
employing integrated computer networks and advanced control systems.
Matsushita-Kotobuki's manufacturing expertise helps The Hard Disk Drive group
produce hard disk drives of exceptional quality and quickly achieve volume
production.

The Hard Disk Drive group's relationship with Matsushita-Kotobuki, which has
been continuous since 1984, is governed by a master agreement which continues
through 2007, unless terminated sooner as a result of certain specified events
including a change-in-control of either Quantum or Matsushita-Kotobuki. This
agreement gives Matsushita-Kotobuki the exclusive worldwide right to
manufacture and the Hard Disk Drive group the exclusive worldwide right to
design and market hard disk drives. The Hard Disk Drive group provides
Matsushita-Kotobuki with a forecast of its requirements and places purchase
orders approximately three months prior to scheduled delivery. The Hard Disk
Drive group works closely with Matsushita-Kotobuki to regularly adjust its
purchase orders as market requirements change.

The Hard Disk Drive group and Matsushita-Kotobuki work together to develop
strategic relationships with leading suppliers of many of the key hard disk
drive components. These relationships enable the Hard Disk Drive group to gain
early access to leading-edge hard disk drive technology and to actively manage
its supply chain to improve flexibility in choosing state-of-the-art components
and to reduce component, inventory and overall product costs.

In October 1998, the Hard Disk Drive group agreed with Matsushita-Kotobuki
to dissolve their recording heads joint venture. As a result, the Hard Disk
Drive group no longer develops or manufactures recording heads.

Research and Development

The Hard Disk Drive group's research and development expenses were $261
million, $259 million and $254 million in fiscal years 1997, 1998 and 1999,
respectively. The Hard Disk Drive group is currently concentrating its research
and development efforts on broadening its existing hard disk drive product
lines through the development and introduction of new hard disk drives. These
development efforts focus on developing desktop and high-end hard disk drives,
hard disk drives for consumer electronics and other hard disk drive
applications.

Competition

In the desktop product market, the Hard Disk Drive group competes primarily
with Fujitsu, IBM, Maxtor, Samsung, Seagate and Western Digital. In the high-
end market, the Hard Disk Drive group competes primarily with Fujitsu, Hitachi,
IBM, Seagate and Western Digital.

The Hard Disk Drive group believes that important competitive factors in the
hard disk drive market are:

. quality;

. reliability;

. storage capacity;

. performance;

. price;

. time-to-market introduction;

. time-to-volume production;

. computer equipment manufacturer product qualifications;

. breadth of product lines; and

. technical service and support.

The Hard Disk Drive group believes that it competes favorably with respect
to these factors.

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<PAGE>

Warranty and Service

The Hard Disk Drive group generally warrants its products against defects
for a period of one to five years from the date of sale. The Hard Disk Drive
group generally provides warranty service on a return to factory basis. The
Hard Disk Drive group maintains in-house service facilities for refurbishment
or repair of its products in Milpitas, California; Dundalk, Ireland; and
Penang, Malaysia. The Hard Disk Drive group also utilizes third party providers
for warranty repairs.

Employees

At March 31, 1999, the Hard Disk Drive group had approximately 3,800 regular
employees. In addition, approximately 860 employees perform services for both
the Hard Disk Drive group and the DLT & Storage Systems group. In the advanced
electronics industry, competition for highly skilled employees is intense. The
Hard Disk Drive group believes that a great part of its future success will
depend on its ability to attract and retain highly skilled employees. None of
the Hard Disk Drive group's employees are represented by a union, and the Hard
Disk Drive group has experienced no work stoppages. The Hard Disk Drive group
believes that its employee relations are favorable.

Management

The following table sets forth certain information with respect to the
executive officers of the Hard Disk Drive group:

<TABLE>
<CAPTION>
Name Age Position
---- --- --------
<C> <C> <S>
John B. Gannon...... 52 President
Shyam C. Parikh..... 54 Chief Technology Officer
Debora C. Shoquist.. 44 Executive Vice President, Hard Disk Drive Operations
Barbara J. Baill.... 47 Vice President, Human Resources
John M. Cobb........ 42 Vice President, Finance
Anthony Francesca... 42 Vice President and General Manager, New Businesses
Barbara H. Nelson... 44 Vice President and General Manager, Desktop Storage
Division
John S. Squire...... 45 Chief Quality Officer
</TABLE>

Mr. Gannon has been President of the Hard Disk Drive group since February
1999. From May 1998 to February 1999, Mr. Gannon was Executive Vice President
of Worldwide Sales. Prior to joining Quantum, Mr. Gannon spent seventeen years
with Hewlett-Packard from 1981 to 1998, last serving as General Manager of
Commercial Desktop Personal Computer Business from 1996 to 1998 and as General
Manager of Digital Audio Tape Business from 1993 to 1996.

Mr. Parikh has been Chief Technology Officer since August 1998. Mr. Parikh
joined Quantum in 1994, and served as Vice President of Technology and
Engineering from 1994 to August 1998. Prior to joining Quantum, Mr. Parikh was
employed by Digital Equipment for 18 years where he held positions in Advanced
Development, Product Development and Support Engineering.

Ms. Shoquist has been Executive Vice President of Hard Disk Drive Operations
since December 1996. Ms. Shoquist has served in a variety of manufacturing
management positions, most recently as Vice President of Product and Test
engineering for the High-End Storage Division. Prior to that, Ms. Shoquist was
Vice President of Worldwide Operations for the High-End Storage Division. Prior
to joining Quantum in 1991, Ms. Shoquist held a variety of operations
management positions at Hewlett-Packard.

Ms. Baill has been Vice President of Human Resources since 1997. From 1994
to 1997, Ms. Baill was Director of Human Resources. Prior to joining Quantum,
Ms. Baill spent 15 years with Hewlett-Packard where she held various positions
including human resource management in a regional sales organization and as the
Manager for Executive and Management Development.

Mr. Cobb has been the Vice President of Finance since 1998. Mr. Cobb joined
Quantum in 1990 as a Controller. From 1993 to 1995 Mr. Cobb was Director of
Finance for the High-End Storage Division. From 1995 to 1998 Mr. Cobb was Vice
President of Finance for the High-End Storage Division. Prior to joining
Quantum, Mr. Cobb was a Senior Manager at Ernst & Young LLP.

Mr. Francesca has been Vice President and General Manager, New Businesses
since 1998. From

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<PAGE>

1997 to 1998, Mr. Francesca was Vice President of Marketing of the Desktop
Storage Division and joined Quantum in 1997 as Vice President of Mobile
Business Unit. Prior to joining Quantum, Mr. Francesca was Vice President of
the OEM business unit for desktop and mobile communications at US Robotics.

Ms. Nelson has been the Vice President and General Manager of the Desktop
Storage Division since November 1997. Ms. Nelson joined Quantum in January 1997
as Vice President of Marketing of the Desktop Storage Division. Prior to
joining Quantum, Ms. Nelson was at Lumina Office Products, Inc. where she was
responsible for sales and worldwide marketing. Ms. Nelson also spent four years
at Maxtor Corporation where she held a variety of positions, including Vice
President of Marketing and Sales and Director of Sales Management.

Mr. Squire has been the Chief Quality Officer since 1998. Mr. Squire has
held a variety of positions at Quantum since 1988, including most recently,
General Manager of the Desktop Storage Division from 1997 to 1998 and Vice
President of Development Engineering for Desktop Storage Division from 1995 to
1997.

Technology

Both the Hard Disk Drive group and the DLT & Storage Systems group will have
access to all of Quantum's technology and know-how, excluding products and
services of the other group, that may be useful in that group's business. The
Hard Disk Drive group and the DLT & Storage Systems group will consult each
other on a regular basis concerning technology issues that affect both groups.

Quantum has been granted and/or owns by assignment 477 United States
patents. In general, these patents have 17-year terms from the date of
issuance. Quantum also has certain foreign patents and applications relative to
certain of the products and technologies. Although the Hard Disk Drive group
believes that its patents and applications have significant value, the rapidly
changing computer industry technology makes the Hard Disk Drive group's future
success dependent primarily upon the technical competence and creative skills
of our personnel rather than on patent protection.

Several companies and individuals have approached the Hard Disk Drive group
concerning the need for a license under patented technology that the Hard Disk
Drive group assertedly used, or is assertedly using, in the manufacture and
sale of one or more of its products. The Hard Disk Drive group conducts ongoing
investigations into these assertions and presently believes that any licenses
ultimately determined to be required could be obtained on commercially
reasonable terms. However, the Hard Disk Drive group cannot assure you that
such licenses are presently obtainable, or if later determined to be required,
could be obtained on commercially reasonable terms or at all.

Quantum has signed cross-licensing agreements with Hewlett-Packard, IBM,
Seagate and others. These agreements enable the Hard Disk Drive group to use
certain patents owned by these companies, and enables these companies to use
certain patents owned by Quantum.

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<PAGE>

THE HARD DISK DRIVE GROUP

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS

You should read this discussion along with the Hard Disk Drive group's
Combined Financial Statements contained in this proxy statement. Historical
results and percentage relationships may not necessarily be indicative of
operating results for any future periods.

Overview

The following summarizes the Hard Disk Drive group's desktop and high-end
revenue and operating profit (loss), excluding the effect of the discontinued
recording heads operations:

<TABLE>
<CAPTION>
Year Ended March 31,
----------------------------------
1997 1998 1999
---------- ---------- ----------
Business unit: (In thousands)
<S> <C> <C> <C>
Desktop Drives
Revenue................................... $4,004,828 $3,981,614 $3,079,437
Unit operating profit (loss).............. 300,287 184,331 (49,132)
High-end Drives
Revenue................................... $ 586,616 $ 633,821 $ 519,883
Unit operating loss....................... (154,184) (250,136) (83,323)
</TABLE>

The Hard Disk Drive group experienced the following key trends in its
desktop and high-end hard disk drive products during the fiscal years 1997
through 1999:

. Desktop Hard Disk Drives. Because desktop hard disk drives are the key
storage device within PCs, the PC market generates demand for desktop
hard disk drives. The growth and pervasive use of PCs in both the
business and home have generally resulted in increasing sales of the Hard
Disk Drive group's desktop hard disk drives. However, a market demand
slowdown, coupled with inventory curtailment by leading computer
equipment manufacturers, negatively affected revenue during the five most
recent quarters. In addition, intense competition in the market for both
PCs and desktop hard disk drives has resulted in generally declining hard
disk drive prices despite increases in the capacity and performance of
hard disk drives.

. High-end Hard Disk Drives. High-end hard disk drives are predominately
used in servers, workstations and storage sub-systems. Although the
market for high-end hard disk drives has continued to expand, IBM and
Seagate have held the largest market share in these markets. The Hard
Disk Drive group has experienced difficulty in gaining market share and
has experienced continuing losses in this business. The Hard Disk Drive
group, however, recognizes the long term potential of this market, and
has continued its strategy of focusing on the fast growing network server
and workstation market and has taken several important steps in an effort
to improve its performance. The Hard Disk Drive group transitioned all of
its high-end manufacturing to Matsushita-Kotobuki beginning in the fourth
quarter of fiscal year 1996, which was substantially completed by the
second quarter of fiscal year 1997. This transition has contributed to a
recent improvement in the reliability of the Hard Disk Drive group's new
high-end products. The Hard Disk Drive group has also recently improved
its time-to-market performance and now has a complete high-end product
offering with both 7200 RPM and 10,000 RPM products with SCSI and fibre
channel interfaces, both of which are high speed interfaces used in the
enterprise storage market.

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<PAGE>

Results of Operations

Fiscal Year 1999 Compared With Fiscal Year 1998

Revenue. Revenue in fiscal year 1999 was $3.6 billion, compared to $4.6
billion in fiscal year 1998, a decrease of 22%. The decrease in revenue
reflected lower revenue from sales of both desktop and high-end hard disk
drives.

. Desktop hard disk drive revenue in fiscal year 1999 was $3.1 billion,
compared to $4.0 billion in fiscal year 1998. The decline in desktop hard
disk drive revenue reflected a decline in average unit prices and, to a
lesser extent, a lower level of shipments to leading computer equipment
manufacturers. The price decline reflected intense competition,
especially in the first two quarters of fiscal year 1999, and the growth
of the low cost PC market, which has become a higher proportion of the
overall desktop PC market.

. High-end hard disk drive revenue in fiscal year 1999 was $520 million,
compared to $634 million in fiscal year 1998. Although high-end hard disk
drive shipments increased in fiscal year 1999, increased competitive
pricing pressures, especially in the second half of fiscal year 1999,
resulted in reduced average unit prices and lower high-end hard disk
drive revenue.

Sales to the top five customers in fiscal year 1999 represented 43% of
revenue, compared to 44% of revenue in fiscal year 1998. These amounts
reflected a retroactive combination of the sales to Compaq and Digital
Equipment as a result of their merger in June 1998. Sales to Compaq were 10% of
revenue in fiscal year 1999, compared to 12% of revenue in fiscal year 1998,
including sales to Digital Equipment. Sales to Hewlett-Packard were 14% of
revenue in both fiscal years 1999 and 1998.

In fiscal year 1999, sales to computer equipment manufacturers and
distribution channel customers were 60% and 40% of revenue, respectively,
compared to 59% and 41% of revenue, respectively, in fiscal year 1998.

Gross Margin Rate. The gross margin rate in fiscal years 1999 and 1998 was
8.1%.

. The desktop gross margin rate in fiscal year 1999 was 7.5%, compared to
11.4% in fiscal year 1998.

. The high-end gross margin rate in fiscal year 1999 was 11.4%, compared to
-12.7% in fiscal year 1998.

The gross margin rate in fiscal year 1998 reflected the impact of a $103
million special charge related to the transition to a new generation of high-
end disk drive products, and consisted primarily of inventory write-offs and
adjustments, and losses related to firm inventory purchase commitments.
Excluding the special charge, the gross margin rate was 10.3% in fiscal year
1998. This 2.2 percentage point decline between fiscal year 1998 and 1999
reflected the decline in gross margins earned on desktop hard disk drives as a
result of intense competitive pricing pressures in fiscal year 1999.

Research and Development Expenses. Research and development expenses in
fiscal year 1999, were $254 million, or 7.1% of revenue, compared to $259
million, or 5.6% of revenue, in fiscal year 1998. The decrease in research and
development expenses reflected reduced spending as a result of cost control
efforts.

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1999, were $114 million, or 3.2% of revenue, compared to $122 million, or 2.6%
of revenue in fiscal year 1998. The decrease in sales and marketing expenses
reflected reduced spending including lower commissions as a result of the lower
level of revenue.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1999, were $56 million, or 1.5% of revenue, compared to $67
million, or 1.5% of revenue, in fiscal year 1998. The decrease in general and
administrative expenses reflected the impact of cost control efforts.

Interest and Other Income/Expense. Net interest and other income and expense
in fiscal year 1999 was $10 million income, compared to $5 million income in
fiscal year 1998. The increase reflected increased interest income on higher
cash balances and reduced interest expense.

79
<PAGE>

Loss from Investee. The Hard Disk Drive group's investment and operating
results related to its recording heads business have resulted in significant
losses. The Hard Disk Drive group acquired a recording heads business from
Digital Equipment in October 1994. In May 1997, The Hard Disk Drive group sold
a 51% majority interest in its recording heads operations to Matsushita-
Kotobuki, and formed a recording heads joint venture with Matsushita-Kotobuki.
On October 28, 1998, the Hard Disk Drive group and Matsushita-Kotobuki agreed
to dissolve the recording heads joint venture. In connection with
the dissolution, the Hard Disk Drive group recorded a $101 million loss in the
third quarter of fiscal year 1999. This loss included a write-off of the
Hard Disk Drive group's investment in the recording heads joint venture; a
write-down of the Hard Disk Drive group's interest in facilities in Louisville,
Colorado, and Shrewsbury, Massachusetts that were occupied by the recording
heads joint venture; warranty costs resulting from magneto resistive recording
heads manufactured by the recording heads joint venture; and the Hard Disk
Drive group's 49% pro rata share in funding the recording heads joint venture's
repayment of its obligations, primarily bank debt, accounts payable and other
liabilities. See Note 5 of the Notes to Combined Financial Statements for
additional discussion of the dissolution of the recording heads joint venture.

Income Taxes. The Hard Disk Drive group recorded benefits of $112 million
and $83 million for effective benefit rates of 42% and 61% in fiscal years 1999
and 1998, respectively. The 1999 effective rate reflects decreased benefits
from foreign earnings taxed at less than the U.S. rate, a lower research and
development credit and decreased state tax benefits. Fiscal year 1998 includes
a benefit as a result of the recognition of state deferred tax assets through
tax planning.

Net Loss. The Hard Disk Drive group reported a net loss in fiscal year 1999
of $153 million, compared to $53 million in fiscal year 1998. The increased
loss resulted from the $101 million charge related to the recording heads joint
venture dissolution and the decrease in revenue and gross profit, partially
offset by a decrease in operating costs.

Fiscal Year 1998 Compared With Fiscal Year 1997

Revenue. Revenue in both fiscal years 1998 and 1997 was $4.6 billion.

. Desktop hard disk drive revenue in both fiscal years 1998 and 1997 was
$4.0 billion.

. High-end hard disk drive revenue for fiscal year 1998 was $634 million,
compared to $587 million in fiscal year 1997.

Declines in average unit prices for both desktop and high-end disk drives
substantially offset an increase in disk drive unit shipments. Oversupply and
intensely competitive pricing in these markets, particularly in the second half
of fiscal year 1998 and more significantly for the high-end disk drive
products, caused such declines.

Sales to the Hard Disk Drive group's top five customers were 44% of revenue
in fiscal year 1998, compared to 40% of revenue in fiscal year 1997. These
amounts reflect a retroactive combination of the sales to Compaq and Digital
Equipment as a result of their merger in June 1998. Sales to Hewlett-Packard
were 14% of revenue in fiscal year 1998, compared with less than 10% of revenue
in fiscal year 1997. Sales to Compaq were 12% of revenue in both fiscal years
1998 and 1997, including sales to Digital Equipment.

Sales to computer equipment manufacturers and distribution channel customers
were 59% and 41% of revenue, respectively, for fiscal year 1998 compared with
61% and 39% of revenue, respectively, in fiscal year 1997.

Gross Margin Rate. The gross margin rate decreased 2.8 percentage points to
8.1% in fiscal year 1998, from 10.9% in fiscal year 1997.

. The desktop gross margin rate for fiscal year 1998 was 11.4%, compared to
14.1% for fiscal year 1997.

. The high-end gross margin rate for fiscal year 1998 was -12.7%, compared
to -1.8% for fiscal year 1997.

The overall gross margin decrease reflected the price declines earned on
desktop and high-end hard disk drives, particularly in the second half of
fiscal year 1998, and the $103 million special charge in the

80
<PAGE>

third quarter of fiscal year 1998. The special charge related to the transition
to a new generation of high-end disk drive products, and consisted primarily of
inventory write-offs and adjustments, and losses related to firm inventory
purchase commitments. Excluding the special charge, the gross margin rate was
10.3% in fiscal year 1998. The erosion of gross margins earned on hard disk
drives and the special charge both reflected the oversupply and intensely
competitive pricing in the desktop and high-end disk drive markets,
particularly in the second half of fiscal year 1998.

Research and Development Expenses. In fiscal year 1998, research and
development expenses were $259 million, or 5.6% of revenue, compared with $261
million, or 5.7% of revenue, in fiscal year 1997.

Sales and Marketing Expenses. Sales and marketing expenses in fiscal year
1998 were $122 million, or 2.6% of revenue, compared with $126 million, or 2.7%
of revenue, in fiscal year 1997.

General and Administrative Expenses. General and administrative expenses in
fiscal year 1998 were $67 million, or 1.5% of revenue, compared with $75
million, or 1.6% of revenue, in fiscal year 1997.

Interest and Other Income/Expense. Net interest and other income and expense
in fiscal year 1998 was $5 million income, compared with $15 million expense in
fiscal year 1997. A decrease in interest expense, reflecting a year-over-year
decrease in the average level of debt used to finance operations, and an
increase in the year-over-year average level of cash, combined to cause this
change.

Loss from Investee. The loss from investee reflected the Hard Disk Drive
group's equity share in the operating losses of the recording heads joint
venture since May 16, 1997, when this joint venture was formed. Prior to
May 16, 1997, the Hard Disk Drive group fully combined its recording heads
operations. The Hard Disk Drive group's total losses from recording heads
operations for fiscal year 1998 was $75 million, compared with $110 million for
fiscal year 1997. The loss from investee for fiscal year 1998 included a charge
of approximately $5 million, which represented the Hard Disk Drive group's
share of a third quarter charge in the recording heads joint venture's
operating results for severance, equipment write-offs, lease termination and
other costs associated with the recording heads joint venture's strategic
actions. A combination of reduced unit prices, operating costs, manufacturing
yields, product transitions and soft demand for certain recording heads
products, primarily those related to high-end disk drive products, resulted in
losses by the recording heads joint venture.

Income Taxes. The Hard Disk Drive group recorded benefits of $83 million and
$19 million for fiscal years 1998 and 1997, respectively. The 1997 benefit
reflects foreign earnings taxed at less than the U.S. tax rate and valuation
allowance reversal. Fiscal year 1998 includes a benefit as a result of the
recognition of state deferred tax assets through tax planning and the benefit
of foreign earnings taxed at less than the U.S. rate.

Net Income (Loss). The Hard Disk Drive group reported a net loss in fiscal
year 1998 of $53 million, compared to net income of $41 million in fiscal year
1997. The change to a net loss resulted from the special charge related to
high-end disk drives and the erosion of margins on desktop hard disk drives. A
decrease in operating costs partially offset the decrease.

81
<PAGE>

Quarterly Operating Results

<TABLE>
<CAPTION>
Fiscal Year 1999
--------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Revenue.................... $ 847,321 $ 874,253 $ 959,086 $ 918,660
Cost of revenue............ 794,622 814,039 881,298 817,942
---------- ---------- ---------- ----------
Gross profit............... 52,699 60,214 77,788 100,718

Operating expenses:
Research and
development............. 62,347 60,661 59,766 71,119
Sales and marketing...... 25,570 30,520 29,427 28,872
General and
administrative.......... 10,954 14,230 13,538 16,870
---------- ---------- ---------- ----------
98,871 105,411 102,731 116,861
---------- ---------- ---------- ----------

Loss from operations....... (46,172) (45,197) (24,943) (16,143)
Interest and other income,
net....................... 2,101 70 3,445 4,386
Loss from investee......... (24,237) (17,113) (100,700) --
---------- ---------- ---------- ----------
Loss before income taxes... (68,308) (62,240) (122,198) (11,757)
Income tax benefit......... (27,754) (27,362) (46,230) (10,631)
---------- ---------- ---------- ----------
Net loss................... $(40,554) $(34,878) $(75,968) $ (1,126)
========== ========== ========== ==========

<CAPTION>
Fiscal Year 1998
--------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Revenue.................... $1,181,139 $1,214,968 $1,189,602 $1,029,726
Cost of revenue............ 1,011,267 1,054,892 1,201,466 974,503
---------- ---------- ---------- ----------
Gross profit (loss)........ 169,872 160,076 (11,864) 55,223

Operating expenses:
Research and
development............. 62,883 59,792 70,488 65,753
Sales and marketing...... 32,253 32,021 32,084 25,429
General and
administrative.......... 22,748 18,730 16,901 8,622
---------- ---------- ---------- ----------
117,884 110,543 119,473 99,804
---------- ---------- ---------- ----------

Income (loss) from
operations................ 51,988 49,533 (131,337) (44,581)
Interest and other income,
net....................... 957 231 2,196 1,234
Loss from investee......... (3,942) (15,629) (22,651) (23,838)
---------- ---------- ---------- ----------
Income (loss) before income
taxes..................... 49,003 34,135 (151,792) (67,185)
Income tax provision
(benefit)................. 2,156 (4,918) (53,545) (26,674)
---------- ---------- ---------- ----------
Net income (loss).......... $ 46,847 $ 39,053 $(98,247) $(40,511)
========== ========== ========== ==========
</TABLE>

82
<PAGE>

Recent Accounting Pronouncements

In June 1997, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards ("SFAS") No. 130, "Reporting
Comprehensive Income," which the Hard Disk Drive group implemented in fiscal
year 1999. SFAS No. 130 establishes standards for reporting and display of
comprehensive income and its components--revenue, expenses, gains, and losses--
in a full set of general-purpose financial statements. The adoption of SFAS No.
130, changed financial statement presentation but did not have an impact on the
Hard Disk Drive group's financial position or results of operations.

In June 1997, the FASB issued SFAS No. 131, "Disclosure about Segments of an
Enterprise and Related Information," requires certain financial and descriptive
information about a company's reportable operating segments. The Hard Disk
Drive group adopted SFAS No. 131 in fiscal year 1999. The adoption of SFAS No.
131 applies solely to disclosure and will not have an impact on the Hard Disk
Drive group's financial position or results of operations.

Liquidity and Capital Resources

Operatings Activities. The Hard Disk Drive group generated cash from
operations of $247 million during fiscal year 1999. The Hard Disk Drive group's
cash provided by operations in fiscal year 1998 was $82 million. The increase
primarily reflects an increase in the collection of accounts receivable and a
reduction in inventories.

Investing Activities. Investments during fiscal year 1999 were $35 million,
which consisted primarily of investments in property and equipment, partially
offset by maturities of marketable securities. Investments in fiscal year 1998
totaled $83 million.

Financing Activities. At March 31, 1999, and March 31, 1998, Quantum's debt
allocated to the Hard Disk Drive group was $115 million and $109 million,
respectively. Debt allocated to the Hard Disk Drive group bears interest at a
rate equal to the weighted average interest rate of Quantum's total debt,
calculated on a quarterly basis. At March 31, 1999, Quantum had a total debt of
$345 million with an average interest rate of 7.3%. In the future, each group's
debt will increase or decrease by the amount of any cash provided by or used
for the group's operating activities, investing activities, share repurchases
or issuances and other non-debt-related financing activities. See Note 1 to
Combined Financial Statements for further discussion of financing activities.

In December 1998, ATL entered into a senior credit facility that provides a
$35 million revolving credit line to ATL. The revolving credit line is
co-terminous with Quantum's $500 million revolving credit line, expiring in
June 2000. At the option of ATL, borrowings under the revolving credit line
bear interest at either London interbank offered rate plus a margin determined
by Quantum's total funded debt ratio, or at a base rate, with option periods of
one to six months. At March 31, 1999, $18 million was outstanding on this
revolving credit line.

Quantum filed a registration statement which became effective on July 24,
1997, pursuant to which Quantum may issue debt or equity securities, in one or
more series or issuances, limited to $450 million aggregate public offering
price. Under the registration statement, in July 1997, Quantum issued $288
million of 7% convertible subordinated notes. The notes mature on August 1,
2004, and are convertible at the option of the holder at any time prior to
maturity, unless previously redeemed, into shares of the Quantum's common stock
at a conversion price of $46.325 per share. Quantum has the option to redeem
the notes on or after August 1, 1999 and prior to August 1, 2001, under certain
conditions related to the price of Quantum's

83
<PAGE>

common stock. Subsequent to August 1, 2001, Quantum may redeem the notes at any
time. In the event of certain changes involving all or substantially all of
Quantum's common stock, the holder would have the option to redeem the notes.
Redemption prices range from 107% of the principal to 100% at maturity. The
notes are unsecured obligations subordinated in right of payment to all of
Quantum's existing and future senior indebtedness.

If the tracking stock proposal is implemented, each of the 7% convertible
subordinated notes, which currently are convertible into shares of existing
common stock, will become convertible into shares of DLT & Storage Systems
group stock and shares of Hard Disk Drive group stock. The number of shares of
Hard Disk Drive group stock and DLT & Storage Systems group stock into which
each note will be convertible is equal to the number of the shares which the
holder of the note would receive under the tracking stock proposal had such
note been converted immediately prior to the implementation of the tracking
stock proposal. The notes will not be separately convertible into solely DLT &
Storage Systems group stock or solely Hard Disk Drive group stock. The exercise
price and maturity date of each convertible note will not be affected by the
implementation of the tracking stock proposal.

The Hard Disk Drive group expects to spend approximately $85 million in
fiscal year 2000 for capital equipment and leasehold improvements. These
capital expenditures will support the expansion of the desktop and high-end
hard disk drive product lines and the introduction of hard drives for consumer
electronic applications.

The Hard Disk Drive group expects its cash flow from operations, together
with available financing sources, will be sufficient to meet all currently
planned expenditures and sustain operations for the next 12 months. However,
this belief assumes that operating results and cash flow from operations will
meet the Hard Disk Drive group's expectations.

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<PAGE>

PROPOSAL 2--ADOPTION OF AMENDMENTS TO THE QUANTUM CORPORATION EMPLOYEE STOCK
PURCHASE PLAN

Background of the Proposal

Proposal 2 relates to amendments to the Quantum corporation employee stock
purchase plan which would:

. increase the number of shares available for issuance under the purchase
plan from 1,366,401 to 3,366,401; and

(1) 5,000,000 shares;

(2) 2% of the outstanding common stock; or

(3) an amount determined by our board of directors.

. our board of directors believes the purchase plan serves to incentivize
current employees and to align their interests with those of our
stockholders;

. our board of directors believes that the purchase plan is an important
element of our strategy to attract and retain qualified employees in a
competitive market;

. the automatic replenishment provision will provide the purchase plan with
additional shares and avoid any adverse accounting consequences from
running out of shares during an offering period; and

. without the proposed share increase, we will exhaust the shares available
for issuance under the purchase plan this year.

This summary highlights certain provisions of the purchase plan. To
understand the purchase plan more fully, you should read carefully the amended
purchase plan which is Annex II.

If the tracking stock proposal is approved by our stockholders, additional
features will be added to the purchase plan to reflect the special features of
the tracking stock, including:

. two pools of tracking stock reserved under the purchase plan, each with
automatic replenishment features;

. a modified change of control provision to reflect the tracking stock
capital structure.

Under the purchase plan, our board of directors has the authority to adopt
these amendments related to the tracking stock proposal without stockholder
approval.

Summary of the purchase plan

General

The purchase plan, and the right of participants to make purchases
thereunder, is intended to qualify under the provisions of Section 423 of the
Code.

Purpose

The purchase plan provides the employees of Quantum and our majority-owned
subsidiaries designated by our board of directors with an opportunity to
purchase our common stock through accumulated payroll deductions.

Administration

Either our board of directors or a committee of our board administers the
purchase plan. Currently, our board of directors is administering the purchase
plan. The administration, interpretation or application of the purchase plan by
our board of directors or the committee is final, conclusive and binding upon
all participants. Members of our board of directors who are eligible employees
may participate in the purchase plan so long as they do

85
<PAGE>

no vote on any matter affecting the administration of the purchase plan or
grant any option pursuant to the purchase plan. In addition, if our board of
directors establishes a committee to administer the purchase plan, no member
of the board who is eligible to participate in the purchase plan may be a
member of the committee.

Eligibility and Participation

Any person whom Quantum or any of its designated subsidiaries employs
regularly at least 20 hours per week on the first day of each offering period
known as the "enrollment date", is eligible to participate in the purchase
plan. Eligible employees become participants in the purchase plan by
completing a subscription agreement authorizing a payroll deduction on the
form which we provide and by filing the form with our payroll office prior to
the applicable enrollment date or such later time as our board of directors
decides. As of March 31, 1999, approximately 6,610 employees were eligible to
participate in the purchase plan.

Offering Dates

Generally, we implement the purchase plan by means of overlapping two-year
offering periods, starting every six months. There are four six-month exercise
periods within each offering period. Our board of directors has the power to
change the duration of the offering periods and exercise periods within each
offering period without stockholder approval if it announces the change at
least 15 days prior to the scheduled beginning of the first affected offering
period.

Purchase Price

The purchase price per share of the shares of common stock in a given
offering period is the lower of:

. 85% of the fair market value of a share of our common stock at the
commencement of the offering period; or

. 85% of the fair market value of a share of our common stock on the last
day of the applicable six-month exercise period within the offering
period.

Payment of Purchase Price; Payroll Deductions

The purchase price of shares is accumulated by payroll deductions over the
offering period. The deductions may not exceed 10% of a participant's
compensation. A participant may discontinue participation in the purchase
plan, or may change the rate of payroll deductions, by giving notice to us.
The change becomes effective:

. in the case of a decrease in rate, with the first payroll following such
notice; and

. in the case of an increase in rate, at the beginning of the next six-
month exercise period within the two-year offering period following such
notice.

Payroll deductions commence on the first payroll date following the
offering date and end on the last payroll date to which authorization is
applicable, unless sooner terminated as provided in the purchase plan.

We credit all payroll deductions made for a participant to his or her
account under the purchase plan. A participant may not make any additional
payments into such account.

Purchase of Stock; Exercise of Option

By executing a subscription agreement to participate in the purchase plan,
the employee can have shares placed under option to him or her. The maximum
number of shares placed under the option to a participant in any exercise
period is the number determined by dividing the total amount of his or her
compensation which is to be withheld for the exercise period by 85% of the
fair market value of the common stock at the beginning of the offering period
or end of the exercise period, whichever is less. Unless the employee's
participation is discontinued, his or her option for the purchase of shares is
exercised automatically at the end of each exercise period at the applicable
price.

Notwithstanding the foregoing, to the extent necessary to comply with
Section 423(b)(8) of the Internal Revenue Code of 1986, as amended, we will
not grant an option to any employee under the purchase plan if, immediately
after the grant of the option, the employee would own shares and/or hold
outstanding options to purchase stock, possessing 5% or more of the total
combined voting power or

86
<PAGE>

value of all classes of our shares or of shares of any of our designated
subsidiaries. In addition, we will not grant an option to any employee that
would permit him or her to buy more than $25,000 worth of stock under the
purchase plan in any calendar year. This limit is determined at the fair market
value of the shares at the time the option is granted.

Withdrawal

A participant may terminate his or her interest in a given offering in
whole, but not in part, by signing and delivering to us a notice of withdrawal.
The participant may elect to withdraw at any time prior to the end of the
applicable offering period. A participant's withdrawal from an offering does
not have any effect upon such participant's eligibility to participate in
subsequent offerings under the purchase plan.

Amendment and Termination of the Purchase Plan

Our board of directors may at any time amend or terminate the purchase plan.
Unless the termination or an amendment is necessary to avoid adverse financial
accounting consequences to Quantum, no such termination can affect options
previously granted and no amendment may make any changes in an option
previously granted which adversely affects the rights of any participant. We
may not amend the purchase plan without the approval of our stockholders if
that amendment would:

. increase the number of shares that may be issued under the purchase plan;

. permit payroll deductions at a rate in excess of 10% of a participant's
compensation;
. materially modify the requirements as to eligibility for participation in
the purchase plan; or

. materially increase the benefits which may accrue to participants under
the purchase plan.

Automatic Transfer to Lower Price Offering Period

If the fair market value of our common stock on the first day of an offering
period exceeds the fair market value of our common stock on the first day of
any subsequent offering period commencing immediately following an exercise
date within the offering period in progress, then each participant in the
offering period in progress is deemed to have withdrawn from such offering
period immediately following the exercise of his or her option on such exercise
date and to have enrolled in such subsequent offering period as of the first
day thereof.

Certain Federal Income Tax Consequences

The following brief summary of the effect of federal income taxation upon
the participant and Quantum with respect to the shares purchased under the
purchase plan does not purport to be complete, and does not discuss the tax
consequences of a participant's death or the income tax laws of any state or
foreign country in which the participant may reside.

The purchase plan, and the right of participants to make purchases
thereunder, is intended to qualify under the provisions of Sections 421 and 423
of the Code. Under these provisions, no income will be taxable to a participant
until the shares purchased under the purchase plan are sold or otherwise
disposed of. Upon sale or other disposition of the shares, the participant will
generally be subject to tax in an amount that depends upon the holding period.

If the shares are sold or otherwise disposed of more than two years from the
first day of the applicable offering period and one year from the applicable
date of purchase, the participant will recognize ordinary income measured as
the lesser of:

. the excess of the fair market value of the shares at the time of such
sale or disposition over the purchase price; or

. an amount equal to 15% of the fair market value of the shares as of the
first day of the applicable offering period.

Any additional gain will be treated as long-term capital gain.

If the shares are sold or otherwise disposed of before the expiration of
these holding periods, the participant will recognize ordinary income generally
measured as the excess of the fair market value of the shares on the date the
shares are purchased over the purchase price. Any additional gain or loss on
such sale or disposition will be long-term or short-term capital gain or loss,
depending on the holding

87
<PAGE>

period. We are generally not entitled to a deduction for amounts taxed as
ordinary income or capital gain to a participant except to the extent of
ordinary income recognized by participants upon a sale or disposition of shares
prior to the expiration of the holding periods described above.

Participation in the Purchase Plan

Participation in the purchase plan is voluntary and is dependent on each
eligible employee's election to participate and his or her determination as to
the level of payroll deductions. Accordingly, future purchases under the
purchase plan are not determinable. Non-employee directors are not eligible to
participate in the purchase plan. No employee has made any purchases under the
purchase plan since the board of directors amended it. However, purchases were
made prior to such amendment. The following table sets forth certain
information regarding shares purchased under the purchase plan during the last
fiscal year for each of the named executive officers, for all current executive
officers as a group and for all other employees who participated in the
purchase plan as a group:

AMENDED PLAN BENEFITS
Employee Stock Purchase Plan

<TABLE>
<CAPTION>
Number Dollar
Name of Individual or Identity of of Shares Value
Group and Position Date Purchased (#) ($)(1)
- --------------------------------- ---------------- ------------- -----------
<S> <C> <C> <C>
Michael A. Brown................... July 24, 1998 -- $ --
January 25, 1999 1,369 13,502

Richard L. Clemmer................. July 24, 1998 -- --
January 25, 1999 1,562 18,393

Young K. Sohn...................... July 24, 1998 698 9,431
January 25, 1999 1,369 13,502

Kenneth Lee........................ July 24, 1998 93 1,257
January 25, 1999 -- --

Peter van Cuylenburg............... July 24, 1998 -- --
January 25, 1999 -- --

All current executive officers as a
group............................. July 24, 1998 1,315 17,767
January 25, 1999 5,735 59,549

All other employees as a group..... July 24, 1998 1,789,535 21,823,350
January 25, 1999 758,977 7,599,001
</TABLE>
- --------
(1) Market value of shares on date of purchase, minus the purchase price under
the purchase plan.

Vote Required

Approval of the amendments to the purchase plan requires the favorable vote
of a majority of our existing common stock represented in person or by proxy at
the special meeting.

Recommendation of the Board of Directors

Our board of directors has carefully considered the proposal to amend the
purchase plan and believes that the approval of the proposal by the
stockholders is in the best interests of our company and our stockholders. Our
board of directors unanimously recommends that you approve the proposal.

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<PAGE>

PRICE RANGE AND DIVIDENDS ON
EXISTING COMMON STOCK

The following table shows the high and low sales prices of our existing
common stock on Nasdaq, adjusted to reflect a two-for-one stock split in May
1997, during the periods indicated:

<TABLE>
<CAPTION>
Fiscal Year High Low
- ----------- --------- ---------
1997
<S> <C> <C>
First Quarter............................................... $13 $ 7 1/32
Second Quarter.............................................. 9 3/16 5 1/2
Third Quarter............................................... 14 7/8 8 21/32
Fourth Quarter.............................................. 22 17/32 13 3/4

<CAPTION>
1998
<S> <C> <C>
First Quarter............................................... $24 9/16 $17 7/8
Second Quarter.............................................. 42 7/16 20 5/16
Third Quarter............................................... 42 7/16 18 15/16
Fourth Quarter.............................................. 26 1/2 18 7/16

<CAPTION>
1999
<S> <C> <C>
First Quarter............................................... $25 3/4 $18
Second Quarter.............................................. 22 1/8 11 7/16
Third Quarter............................................... 23 7/8 12 3/4
Fourth Quarter ............................................. 28 5/16 16 7/16
</TABLE>

Historically, we have not paid dividends on our existing common stock.

The closing sale price of our existing common stock on Nasdaq was $16 7/16
per share on February 26, 1999, the trading day prior to our announcement of
the tracking stock proposal, and $21 5/8 per share on June 9, 1999, the trading
day prior to the date of this proxy statement. As of June 4, 1999, there were
167,739,218 shares of our existing common stock outstanding and 7,541 holders
of record.

INFORMATION ABOUT
STOCKHOLDER PROPOSALS

If you wish to submit proposals to be included in the proxy statement for
our 2000 annual meeting, we must receive them on or before February 18, 2000.
Please address your proposals to: Quantum Corporation, 500 McCarthy Boulevard,
Milpitas, California 95035, Attention: Assistant Secretary. Your proposal, if
you choose to submit one, has to include specified information about the
proposed business and yourself.

Our by-laws provide that any stockholder who intends to present a nomination
for a directorship or a proposal for action at any annual meeting of
stockholders must give advance notice of such proposal together with certain
specified information. These requirements are separate and apart from and in
addition to the SEC requirement noted above that a stockholder must meet in
order to have a proposal included in our proxy materials. In general, advance
notice of director nominations must be given to Quantum not less than 20 days
or more than 60 days prior to the meeting, and advance notice of other
proposals must be given to Quantum not less than 60 days or more than 90 days
prior to the meeting. In the case of our 1999 annual meeting, advance notice of
director nominations must be received no earlier than May 24, 1999 or later
than July 3, 1999 and advance notice of other proposals must be received no
later than June 28, 1999. If the tracking stock proposal is implemented, we
will have discretionary authority to vote on any stockholder proposal presented
at the 2000 annual meeting which does not comply with these notice
requirements. Further information regarding the submission of stockholder
proposals may be obtained by writing to the secretary of Quantum.

EXPENSES OF SOLICITATION

We will pay the cost of soliciting proxies for the special meeting. In
addition to soliciting by mail, our directors, officers and other employees may
solicit proxies in person, or by telephone, facsimile transmission or other
means of electronic communication. We will also pay brokers, nominees,
fiduciaries, custodians and other persons representing beneficial owners of the
existing common stock for their reasonable expenses for sending proxy materials
to such beneficial owners and obtaining their instructions. We have retained
Corporate Investor Communications, Inc. to perform various solicitation
services and Lehman Brothers Inc. and Salomon Smith Barney Inc. to perform
various advisory and solicitation services. We have agreed to pay Corporate
Investor Communications, Inc. a customary fee for their services. For
information about compensation that we will pay Lehman Brothers Inc. and
Salomon Smith Barney Inc. for their services, you should read "Proposal --The
Tracking Stock Proposal 1-- Financial Advisors."

89
<PAGE>

LEGAL AND TAX OPINIONS

Wilson Sonsini Goodrich & Rosati, P.C., Palo Alto, California, has rendered
an opinion concerning the validity of the tracking stock. Ernst & Young LLP has
rendered an opinion concerning certain tax matters described under "Proposal
1--The Tracking Stock Proposal--United States Federal Income Tax
Considerations."

EXPERTS

Ernst & Young LLP, independent auditors, have audited the consolidated
financial statements of Quantum Corporation, the combined financial statements
of the DLT & Storage System group and the combined financial statements of the
Hard Disk Drive group at March 31, 1998 and 1999, and for each of the three
years in the period ended March 31, 1999, as set forth in their reports. Ernst
& Young LLP's reports related to the financial statements of Quantum
Corporation and the Hard Disk Drive Group, as to the year ended March 31, 1998,
are based in part on the report of KPMG Peat Marwick LLP, independent auditors.
We have included these financial statements in this proxy statement and
prospectus in reliance on these reports, given on the authority of such firms
as experts in accounting and auditing.

Representatives of Ernst & Young LLP will attend the special meeting and
will have an opportunity to make a statement and to respond to appropriate
questions that you pose.

90
<PAGE>

INDEX TO FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
Page
----
<S> <C>
Quantum Corporation -- Consolidated Financial Statements

Report of Ernst & Young LLP, Independent Auditors....................... F-2

Independent Auditors' Report............................................ F-3

Consolidated Statements of Operations for the Years Ended March 31, 1997
and 1998, and 1999..................................................... F-4

Consolidated Balance Sheets as of March 31, 1998 and 1999............... F-5

Consolidated Statements of Cash Flows for the Years Ended March 31,
1997, 1998 and 1999.................................................... F-6

Consolidated Statements of Stockholders' Equity for the Years Ended
March 31, 1997, 1998 and 1999.......................................... F-7

Notes to Consolidated Financial Statements.............................. F-8

DLT & Storage Systems Group -- Combined Financial Statements

Report of Ernst & Young LLP, Independent Auditors....................... F-28

Combined Statements of Operations for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-29

Combined Balance Sheets as of March 31, 1998 and 1999................... F-30

Combined Statements of Cash Flows for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-31

Combined Statements of Group Equity for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-32

Notes to Combined Financial Statements.................................. F-33

Hard Disk Drive Group -- Combined Financial Statements

Report of Ernst & Young LLP, Independent Auditors....................... F-50

Combined Statements of Operations for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-51

Combined Balance Sheets as of March 31, 1998 and 1999................... F-52

Combined Statements of Cash Flows for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-53

Combined Statements of Group Equity for the Years Ended March 31, 1997,
1998 and 1999.......................................................... F-54

Notes to Combined Financial Statements.................................. F-55
</TABLE>

F-1
<PAGE>

REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

To the Board of Directors and Stockholders of
Quantum Corporation

We have audited the accompanying consolidated balance sheets of Quantum
Corporation (the "Company") as of March 31, 1998 and 1999, and the related
consolidated statements of operations, stockholders' equity and cash flows for
each of the three years in the period ended March 31, 1999. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits. We did not audit the consolidated financial statements of MKE-
Quantum Components LLC ("MKQC"), a forty-nine percent equity investee of the
Company, which statements reflect a net loss of $134.8 million for the period
from May 16, 1997 (inception) through March 31, 1998. Those statements were
audited by other auditors whose report has been furnished to us, and our
opinion, insofar as it relates to data included for MKQC, is based solely on
the report of the other auditors.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits and the report of other
auditors provide a reasonable basis for our opinion.

In our opinion, based on our audits and the report of other auditors, the
financial statements referred to above present fairly, in all material
respects, the consolidated financial position of Quantum Corporation at March
31, 1998 and 1999, and the consolidated results of its operations and its cash
flows for each of the three years in the period ended March 31, 1999, in
conformity with generally accepted accounting principles.

/s/ Ernst & Young LLP

Palo Alto, California
April 26, 1999

F-2
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors and Members
MKE-Quantum Components LLC:

We have audited the consolidated balance sheet of MKE-Quantum Components LLC
and subsidiaries as of March 31, 1998 and the related consolidated statements
of operations, members' equity, and cash flows for the period from May 16, 1997
(Inception) through March 31, 1998 not included herein. These consolidated
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these consolidated financial
statements based on our audit.

We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis
for our opinion.

In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of MKE-Quantum
Components LLC and subsidiaries as of March 31, 1998, and the results of their
operations and their cash flows for the period from May 16, 1997 (Inception)
through March 31, 1998 in conformity with generally accepted accounting
principles.

/s/ KPMG LLP

Boston, Massachusetts
April 14, 1998, except for notes 6(b) and 12
which are as of June 5, 1998

F-3
<PAGE>

QUANTUM CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)

<TABLE>
<CAPTION>
Year Ended March 31,
----------------------------------
1997 1998 1999
---------- ---------- ----------
<S> <C> <C> <C>
Revenue.................................... $5,319,457 $5,805,235 $4,902,056
Cost of revenue............................ 4,550,716 4,929,714 4,030,718
---------- ---------- ----------
Gross profit............................... 768,741 875,521 871,338
Operating expenses:
Research and development................. 291,332 321,741 353,223
Sales and marketing...................... 149,371 169,031 191,126
General and administrative............... 86,507 89,364 93,750
Purchased in-process research and
development............................. -- -- 89,000
---------- ---------- ----------
527,210 580,136 727,099
---------- ---------- ----------
Income from operations..................... 241,531 295,385 144,239
Interest income and other, net............. 7,047 34,243 25,107
Interest expense........................... (47,882) (32,753) (27,481)
Loss from investee......................... -- (66,060) (142,050)
---------- ---------- ----------
Income (loss) before income taxes.......... 200,696 230,815 (185)
Income tax provision ...................... 52,181 60,014 29,350
---------- ---------- ----------
Net income (loss).......................... $ 148,515 $ 170,801 $ (29,535)
========== ========== ==========
Net income (loss) per share:
Basic.................................... $ 1.27 $ 1.25 $ (0.18)
========== ========== ==========
Diluted.................................. $ 1.04 $ 1.07 $ (0.18)
========== ========== ==========
Weighted-average common shares:
Basic.................................... 117,218 136,407 160,670
========== ========== ==========
Diluted.................................. 153,287 166,016 160,670
========== ========== ==========
</TABLE>

See accompanying notes to consolidated financial statements.

F-4
<PAGE>

QUANTUM CORPORATION

CONSOLIDATED BALANCE SHEETS
(In thousands, except share and per share data)

<TABLE>
<CAPTION>
March 31,
----------------------
1998 1999
---------- ----------
<S> <C> <C>
Assets
Current assets:
Cash and cash equivalents............................ $ 642,150 $ 772,368
Marketable securities................................ 71,573 24,426
Accounts receivable, net of allowance for doubtful
accounts of $12,928 and $12,130 respectively........ 737,928 646,557
Inventories.......................................... 315,035 271,986
Deferred taxes....................................... 133,981 107,701
Other current assets................................. 124,670 104,835
---------- ----------
Total current assets.................................. 2,025,337 1,927,873

Property, plant and equipment, less accumulated
depreciation......................................... 285,159 271,928
Intangible assets, less accumulated amortization...... 24,490 225,567
Other assets.......................................... 103,425 58,228
---------- ----------
$2,438,411 $2,483,596
========== ==========
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable..................................... $ 446,243 $ 406,369
Accrued warranty..................................... 74,017 76,905
Accrued compensation................................. 60,344 73,605
Income taxes payable................................. 39,777 33,411
Current portion of long-term debt.................... 935 1,024
Other accrued liabilities............................ 78,920 90,691
---------- ----------
Total current liabilities............................. 700,236 682,005

Deferred taxes........................................ 38,668 67,340
Long-term debt........................................ 39,985 56,961
Convertible subordinated debt......................... 287,500 287,500
Commitments and contingencies.........................
Stockholders' equity:
Common stock, $.01 par value; authorized: 500,000,000
shares; issued and outstanding: 160,879,171 at March
31, 1998, and 167,406,738 at March 31, 1999......... 1,609 1,675
Capital in excess of par value....................... 774,682 884,759
Retained earnings.................................... 597,193 504,206
Accumulated other comprehensive loss................. (1,462) (850)
---------- ----------
Total stockholders' equity............................ 1,372,022 1,389,790
---------- ----------
$2,438,411 $2,483,596
========== ==========
</TABLE>

See accompanying notes to consolidated financial statements.

F-5
<PAGE>

QUANTUM CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)

<TABLE>
<CAPTION>
Year Ended March 31,
-------------------------------
1997 1998 1999
--------- --------- ---------
<S> <C> <C> <C>
Cash flows from operating activities:
Net income (loss)............................ $ 148,515 $ 170,801 $ (29,535)
Adjustments to reconcile net income (loss) to
net cash provided by operations:
Loss from investee........................... -- 66,060 124,809
Purchased in-process research and
development................................. -- -- 89,000
Depreciation................................. 96,477 78,067 92,522
Amortization................................. 27,959 13,532 20,413
Deferred taxes............................... 9,081 (6,001) 22,904
Compensation related to stock incentive
plans....................................... 2,391 4,236 5,636
Changes in assets and liabilities:
Accounts receivable......................... (176,370) 149,549 114,792
Inventories................................. 206,736 (62,233) 67,149
Accounts payable............................ 3,240 (55,826) (56,211)
Income taxes payable........................ (9,841) 8,624 (6,367)
Accrued warranty............................ 32,700 (20,972) 2,037
Other assets and liabilities................ (28,189) (61,485) 16,740
--------- --------- ---------
Net cash provided by operating activities..... 312,699 284,352 463,889
--------- --------- ---------
Cash flows from investing activities:
Purchases of marketable securities........... -- (71,573) (78,145)
Maturities of marketable securities.......... -- -- 125,292
Purchases of equity securities/minority
interest.................................... (6,132) (15,000) (1,750)
Acquisition of intangible assets............. -- (25,850) --
Proceeds from sale of interest in recording
heads operations............................ -- 94,000 --
Investment in property and equipment......... (174,977) (149,749) (115,662)
Proceeds from disposition of property and
equipment................................... 9,665 5,962 143
Proceeds from repayment of note receivable... -- 18,000 --
--------- --------- ---------
Net cash used in investing activities......... (171,444) (144,210) (70,122)
--------- --------- ---------
Cash flows from financing activities:
Proceeds from long-term credit facilities.... 330,091 -- 33,545
Proceeds from mortgage loan.................. 42,105 -- --
Purchase of treasury stock................... -- -- (305,287)
Principal payments on long-term credit
facilities.................................. (378,339) (180,977) (34,090)
Proceeds from issuance of common stock....... 45,261 50,360 42,283
Proceeds from issuance of convertible
subordinated notes.......................... -- 287,500 --
--------- --------- ---------
Net cash provided by (used in) financing
activities................................... 39,118 156,883 (263,549)
--------- --------- ---------
Increase in cash and cash equivalents......... 180,373 297,025 130,218
Cash and cash equivalents at beginning of
period....................................... 164,752 345,125 642,150
--------- --------- ---------
Cash and cash equivalents at end of period.... $ 345,125 $ 642,150 $ 772,368
========= ========= =========
Supplemental disclosure of cash flow
information:
Conversion of debentures to common stock..... $ 132,893 $ 241,350 --
========= ========= =========
Note received on disposition of property and
equipment................................... $ 18,000 -- --
========= ========= =========
Issuance of redeemable preferred stock as
part of minority interest acquisition....... $ 3,888 -- --
========= ========= =========
Conversion of redeemable preferred stock to
common stock................................ -- $ 3,888 --
========= ========= =========
Cash paid during the year for:
Interest..................................... $ 48,500 $ 29,030 $ 26,721
========= ========= =========
Income taxes................................. $ 9,171 $ 62,615 $ 2,718
========= ========= =========
</TABLE>

See accompanying notes to consolidated financial statements.

F-6
<PAGE>

QUANTUM CORPORATION

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In thousands)

<TABLE>
<CAPTION>
Accumulated
Common Stock Capital in Other
--------------- Excess of Retained Comprehensive Treasury
Shares Amount Par Value Earnings Income (Loss) Stock Total
------- ------ ---------- -------- ------------- --------- ----------
<S> <C> <C> <C> <C> <C> <C> <C>
Balances at March 31,
1996................... 108,392 $1,082 $265,864 $277,877 $ -- $ -- $ 544,823
Net income.............. -- -- -- 148,515 -- -- 148,515
Conversion of
subordinated
debentures............. 14,644 146 131,118 -- -- -- 131,264
Shares issued under
employee stock purchase
plan................... 3,216 32 17,370 -- -- -- 17,402
Shares issued under
employee stock option
plans, net............. 4,612 48 27,811 -- -- -- 27,859
Compensation expense and
other.................. -- -- 5,299 -- -- -- 5,299
Tax benefits related to
stock option plans..... -- -- 11,030 -- -- -- 11,030
------- ------ -------- -------- ------- --------- ----------
Balances at March 31,
1997................... 130,864 1,308 458,492 426,392 -- -- 886,192
Comprehensive income:
Net income............. -- -- -- 170,801 -- -- 170,801
Other comprehensive
loss--foreign currency
translation
adjustments........... -- -- -- -- (1,462) -- (1,462)
----------
Comprehensive income.... -- -- -- -- -- -- 169,339
Conversion of
subordinated
debentures............. 21,626 216 236,506 -- -- -- 236,722
Conversion of Series B
preferred shares....... 180 2 3,886 -- -- -- 3,888
Shares issued under
employee stock purchase
plan................... 3,454 35 21,442 -- -- -- 21,477
Shares issued under
employee stock option
plans, net............. 4,755 48 28,835 -- -- -- 28,883
Compensation expense and
other.................. -- -- 4,236 -- -- -- 4,236
Tax benefits related to
stock option plans..... -- -- 21,285 -- -- -- 21,285
------- ------ -------- -------- ------- --------- ----------
Balances at March 31,
1998................... 160,879 1,609 774,682 597,193 (1,462) -- 1,372,022
Comprehensive loss:
Net loss............... -- -- -- (29,535) -- -- (29,535)
Other comprehensive
income--foreign
currency translation
adjustments........... -- -- -- -- 612 -- 612
----------
Comprehensive loss...... -- -- -- -- -- -- (28,923)
Shares issued under
employee stock purchase
plan................... 2,555 26 24,014 -- -- -- 24,040
Shares issued under
employee stock option
plans, net............. 2,502 25 18,218 -- -- -- 18,243
Treasury shares
repurchased............ (15,477) -- -- -- -- (305,287) (305,287)
Treasury shares reissued
for ATL acquisition.... 15,477 -- -- (63,452) -- 305,287 241,835
New shares issued for
ATL acquisition........ 1,471 15 22,973 -- -- -- 22,988
Conversion of ATL stock
options................ -- -- 22,367 -- -- -- 22,367
Compensation expense and
other.................. -- -- 5,636 -- -- -- 5,636
Tax benefits related to
stock option plans..... -- -- 16,869 -- -- -- 16,869
------- ------ -------- -------- ------- --------- ----------
Balances at March 31,
1999................... 167,407 $1,675 $884,759 $504,206 $ (850) $ -- $1,389,790
======= ====== ======== ======== ======= ========= ==========
</TABLE>

See accompanying notes to consolidated financial statements.

F-7
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 Summary of Significant Accounting Policies

Nature of Business. Quantum operates its business through two separate
groups: the DLT & Storage Systems group and the Hard Disk Drive group as
described below.

The DLT & Storage Systems group designs, develops, manufactures, licenses
and markets DLTtape drives and media, tape libraries and solid state storage
systems. DLTtape is the DLT & Storage Systems group's half-inch tape technology
that is the de facto industry standard for data backup in the mid-range server
market.

The Hard Disk Drive Group designs desktop hard disk drives to meet the
storage requirements of entry-level to high-end desktop PCs in home and
business environments. The Hard Disk Drive Group also designs high-end hard
disk drives for the storage needs of network servers, workstations and storage
sub-systems.

Financial Statement Presentation. The accompanying consolidated financial
statements include the accounts of the Company and its majority-owned
subsidiaries. All material intercompany accounts and transactions have been
eliminated. Certain amounts in prior periods have been reclassified to conform
to current presentation.

Use of Estimates. The preparation of the consolidated financial statements
of the Company in conformity with generally accepted accounting principles
requires management to make estimates and assumptions that affect the reported
amount of assets and liabilities at the date of the financial statements and
the reported amount of revenues and expenses during the period. Actual results
may differ from the estimates and assumptions used in preparing the
consolidated financial statements.

Revenue Recognition. Revenue from sales of products is recognized on
shipment to customers, with provision made for estimated returns. The Company
accrues royalty revenue based on licensees' sales that incorporate certain
licensed technology.

Foreign Currency Translation and Transactions. Assets, liabilities, and
operations of foreign offices and subsidiaries are recorded based on the
functional currency of the entity. For a majority of the Company's material
foreign operations, the functional currency is the U.S. Dollar. The assets and
liabilities of foreign offices with a local functional currency are translated,
for consolidation purposes, at current exchange rates from the local currency
to the reporting currency, the U.S. Dollar. The resulting gains or losses are
reported as a component of other comprehensive income (loss) within
stockholders' equity. Although close to half of the Company's sales are made to
customers in non-U.S. locations and all of the Company's hard disk drive
products are manufactured in Japan, Singapore and Ireland by Matsushita-
Kotobuki Electronics Industries, Ltd. ("MKE"), a majority of the Company's
material transactions are denominated in U.S. dollars. Accordingly, transaction
gains or losses have been immaterial to the Company's consolidated financial
statements for all years presented. The effect of foreign currency exchange
rate fluctuations on cash was also immaterial for the years presented. Assets
and liabilities denominated in other than the functional currency are
remeasured each month with the remeasurement gain or loss recorded in other
income.

Foreign Exchange Contracts. The effect of foreign currency rate changes on
the remeasurement of certain assets and liabilities denominated in a foreign
currency are managed using foreign currency forward exchange contracts. Foreign
currency forward exchange contracts represent agreements to exchange the
currency of one country for the currency of another country at an agreed-upon
price, on an agreed-upon settlement date. Foreign currency forward exchange
contracts are accounted for by the fair value method. Foreign currency forward
exchange contracts are carried on the balance sheet at fair value, with changes
in that value recognized in other income.

F-8
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Net Income (Loss) Per Share. The Company has adopted Statement of Financial
Accounting Standards No. 128 ("SFAS No. 128"), "Earnings per Share." SFAS No.
128 established new requirements for computing and presenting earnings per
share. Under the new requirements, the method previously used to compute
earnings per share is changed and all prior periods presented have been
restated to conform to the new requirements. The new requirements eliminate
primary and fully diluted earnings per share. As a result, under the new
requirements, basic net income (loss) per share excludes any dilutive effect of
stock options. Also, the dilutive effect of stock options used to compute
diluted net income (loss) per share is based on the average market price of the
Company's common stock for the period.

Cash Equivalents and Marketable Securities. The Company considers all highly
liquid debt instruments with a maturity of 90 days or less at the time of
purchase to be cash equivalents. Cash equivalents are carried at fair value,
which approximates cost. The Company's marketable securities have maturities of
more than 90 days at the time of purchase.

The Company has classified all cash equivalents and marketable securities as
available-for-sale. Securities classified as available-for-sale are carried at
fair value with material unrealized gains and losses reported in stockholders'
equity. The cost of debt securities is adjusted for amortization of premiums
and accretion of discounts to maturity. Such amortization is included in
interest income. Realized gains and losses and declines in value judged to be
other-than-temporary are recorded in other income or expense. The cost of
securities sold is based on the specific identification method.

Concentration of Credit Risk. The Company performs ongoing credit
evaluations of its customers' financial condition and generally requires no
collateral from its customers. The Company maintains reserves for potential
credit losses and such losses have historically been within management's
expectations.

The Company invests its excess cash in deposits with major banks and in
money market funds and short-term debt securities of companies with strong
credit ratings from a variety of industries. These securities generally mature
within 365 days and, therefore, bear minimal risk. The Company has not
experienced any material losses on its investments. The Company limits the
amount of credit exposure to any one issuer and to any one type of investment.

Investments in Joint Ventures and Other Entities. Investments in joint
ventures and other entities are recorded in other assets. Investments in joint
ventures are accounted for by the equity method. Dividends are recorded as a
reduction of the carrying value of the investment when received.

Investments in other entities (less-than-20-percent-owned companies) that
are not represented by marketable securities are carried at cost less write-
downs for declines in value that are judged to be other-than-temporary. These
valuation losses are recorded in other income when identified. Dividends are
recorded in other income when received.

Inventories. Inventories are carried at the lower of cost or market. Cost is
determined on a first-in, first-out basis.

Property, Plant and Equipment. Property, plant and equipment are carried at
cost, less accumulated depreciation and amortization computed on a straight-
line basis over the lesser of the estimated useful lives of the assets
(generally three to ten years for machinery, equipment, furniture, and
leasehold improvements; and twenty-five years for buildings) or the lease term.

F-9
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

and 1999 was $23 million and $18 million, respectively. Intangible assets are
reviewed for impairment whenever events or circumstances indicate impairment
might exist, or at least annually.

Warranty Expense. The Company generally warrants its products against
defects for a period of one to five years. A provision for estimated future
costs relating to warranty expense is recorded when products are shipped and
revenue recognized.

Advertising Expense. The Company accrues for co-operative advertising as the
related revenue is earned, and other advertising expense is recorded as
incurred. Advertising expense for the years ended March 31, 1997, 1998 and
1999, was $35 million, $41 million, and $46 million, respectively.

Stock-Based Compensation. The Company accounts for its stock-based employee
compensation plans in accordance with the provisions of Accounting Principles
Board Opinion No. 25, "Accounting for Stock Issued to Employees" and related
Interpretations ("APB Opinion No. 25").

Risks and Uncertainties. As is typical in the information storage industry,
a significant portion of the Company's customer base is concentrated with a
small number of OEMs, and the Company is not able to predict whether there will
be any significant change in the demand for its customers' products. The loss
of any one of the Company's more significant customers could have a material
adverse effect on the Company's results of operations. A limited number of disk
and tape drive storage products make up a significant majority of the Company's
sales, and due to increasingly rapid technological change in the industry, the
Company's future depends on its ability to develop and successfully introduce
new products. Quantum utilizes a third party, MKE, to manufacture all of the
products it sells. The Company relies on MKE's ability to bring new products
rapidly to volume production and to meet stringent quality standards. MKE
manufactures Quantum's drives in Japan, Singapore, and Ireland. If MKE were
unable to satisfy Quantum's production requirements, the Company would not have
an alternative source to meet the demand for its products without substantial
delay and disruption to its operations. The actual results with regard to
warranty expenditures could have a material unfavorable impact on the Company
if the actual rate of unit failure or the cost to repair a unit is greater than
what the Company has used in estimating the warranty expense accrual.

Comprehensive Income. In June 1997, the FASB released Statement of Financial
Accounting Standards No. 130, "Reporting Comprehensive Income." SFAS 130
establishes standards for the reporting and display of comprehensive income and
its components in a full set of general purpose financial statements and has
been implemented by the Company.

Segment Information. In June 1997, The FASB released Statement of Financial
Accounting Standards No. 131, "Disclosure about Segments of an Enterprise and
Related Information." SFAS 131 changes the way companies report selected
segment information in annual financial statements and also requires companies
to report selected segment information in interim financial reports to
stockholders. SFAS 131 has been implemented by the Company.

F-10
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 2 Financial Instruments

Available-For-Sale Securities

The following is a summary of available-for-sale securities, all of which
are classified as cash equivalents and marketable securities:

<TABLE>
<CAPTION>
March 31, 1998 March 31, 1999
------------------ ------------------
Amortized Fair Amortized Fair
Cost Value Cost Value
--------- -------- --------- --------
(In thousands)
<S> <C> <C> <C> <C>
Certificates of deposit............ $411,700 $411,700 $499,400 $499,400
Money market funds................. -- -- 125,200 125,200
Corporate commercial paper and bank
notes............................. 103,346 103,339 58,484 58,486
U.S. Treasury securities and
obligations of U.S. government
agencies.......................... 165,364 165,360 100,589 100,589
Other.............................. 4,613 4,613 5,121 5,121
-------- -------- -------- --------
$685,023 $685,012 $788,794 $788,796
======== ======== ======== ========

Included in cash and cash
equivalents....................... $613,450 $613,450 $764,368 $764,368
Included in marketable securities.. 71,573 71,562 24,426 24,428
-------- -------- -------- --------
$685,023 $685,012 $788,794 $788,796
======== ======== ======== ========
</TABLE>

The difference between the amortized cost of available-for-sale securities
and fair value was immaterial at March 31, 1998 and 1999, and therefore no
gross unrealized gains or losses were recorded in stockholders' equity. The
estimated fair value of available-for-sale securities is based on market
quotations. There were no sales of available-for-sale securities in fiscal
years 1998 or 1999. At March 31, 1999, the average available-for-sale portfolio
duration was approximately 20 days, and no security had a maturity longer than
one year.

Derivative Financial Instruments

Foreign Exchange--Asset and Liability Management. During the periods covered
by the financial statements, the Company utilized foreign currency forward
exchange contracts to manage the effects of foreign currency remeasurement
arising from certain assets and liabilities denominated in a foreign currency.
The gains and losses from market rate changes on these contracts, which are
intended to offset the losses and gains on certain foreign currency denominated
assets and liabilities, are recorded monthly in other income.

F-11
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The following is a summary of foreign currency forward contracts held for
asset and liability management purposes:
<TABLE>
<CAPTION>
March 31,
-----------------------------------
1998 1999
----------------- -----------------
(In millions, except for forward
rates)
<S> <C> <C>
Currency to be sold................... Yen Yen
Maturity dates........................ April-May 1998 April-May 1999
Foreign currency notional amount...... 1,600 yen 2,900 yen
Weighted average forward rate......... 132.23 119.06
U.S. dollar notional amount........... $12.1 $24.4
U.S. dollar equivalent................ $12.3 $24.5
Fair value............................ $(0.2) $(0.1)
<CAPTION>
March 31,
-----------------------------------
1998 1999
----------------- -----------------
(In millions, except for forward
rates)
<S> <C> <C>
Currency to be purchased.............. Swiss Franc Swiss Franc
Maturity dates........................ April 1998 April 1999
Foreign currency notional amount...... 26.5 Swiss Francs 22.0 Swiss Francs
Weighted average forward rate......... 1.51 1.49
U.S. dollar notional amount........... $17.5 $14.8
U.S. dollar equivalent................ $17.4 $14.8
Fair value............................ $(0.1) $ --
</TABLE>

The fair values for foreign currency forward contracts represent the
difference between the contracted forward rate and the quoted fair value of the
underlying Yen or Swiss Francs at the balance sheet dates. The Company
generally does not require collateral from the counterparties to foreign
currency forward contracts.

Carrying Amount and Fair Values of Financial Instruments

The estimated fair value of the Company's borrowings are summarized as
follows:

<TABLE>
<CAPTION>
March 31,
-----------------------------------------------------
1998 1999
-------------------------- --------------------------
Carrying Amount Fair Value Carrying Amount Fair Value
--------------- ---------- --------------- ----------
(In millions)
<S> <C> <C> <C> <C>
Convertible subordinated
debt................... $287.5 $281.8 $287.5 $254.6
Revolving credit line... -- -- 18.0 18.0
Mortgage loan........... 40.9 41.8 40.0 40.8
</TABLE>

The fair values for the convertible subordinated debt were based on the
quoted market price at the balance sheet dates. Fair value for the revolving
credit agreement approximated its carrying amount, since interest rates on
these borrowings are adjusted periodically to reflect market interest rates.
The fair values of the mortgage loan were based on the estimated present value
of the remaining payments, utilizing risk-adjusted market interest rates of
similar instruments at the balance sheet dates.

F-12
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 3 Inventories

Inventories consisted of:

<TABLE>
<CAPTION>
March 31,
-----------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
Materials and purchased parts........................... $ 53,894 $ 62,342
Work in process......................................... 44,303 27,531
Finished goods.......................................... 216,838 182,113
-------- --------
$315,035 $271,986
======== ========
</TABLE>

In fiscal year 1998, the Company recorded a $103 million charge to cost of
revenue related to the transition to a new generation of its high-end disk
drive products, primarily for inventory write-offs and adjustments and losses
related to firm inventory purchase commitments.

Note 4 Property, Plant and Equipment

Property, plant and equipment consisted of:

<TABLE>
<CAPTION>
March 31,
------------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
Machinery and equipment................................ $328,402 $365,795
Furniture and fixtures................................. 31,307 33,330
Buildings and leasehold improvements................... 140,629 159,470
Land................................................... 5,302 4,950
-------- --------
505,640 563,545
Less accumulated depreciation and amortization......... (220,481) (291,617)
-------- --------
$285,159 $271,928
======== ========
</TABLE>

Note 5 Business Combination

On September 28, 1998, the Company completed the acquisition of ATL. ATL
designs, manufactures, markets and services automated tape libraries for the
networked computer market. ATL's products incorporate DLTtape drives as well as
ATL's proprietary IntelliGrip(TM) automation technology. The acquisition has
been accounted for as a purchase with a total cost of $335 million. The
acquisition was completed with the issuance of 16.9 million shares of Quantum
common stock valued at $265 million on the date of acquisition in exchange for
all outstanding shares of ATL, the conversion of outstanding ATL stock options
into options valued at $22 million to purchase 1.8 million shares of Quantum
common stock and the assumption of $45 million of ATL liabilities. The Company
also recognized deferred tax liabilities of $33 million. ATL's results of
operations are included in the financial statements from the date of
acquisition, and the assets and liabilities acquired were recorded based on
their fair values as of the date of acquisition.

The excess of the purchase price over the fair value of the net tangible
assets acquired has been allocated to the following identifiable intangible
assets: goodwill, trademarks and trade names, original equipment manufacturer
and value added reseller customer relationships, non-compete agreements,
workforce in place, developed technology and in-process research and
development. As of the acquisition date, technological feasibility of the in-
process technology has not been established and the technology has no
alternative future

F-13
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

use. Therefore, the Company has expensed $89 million of the purchase price as
in-process research and development. The remaining identifiable intangible
assets will be amortized on a straight-line basis over periods ranging from two
to fifteen years.

The amount of the purchase price allocated to in-process research and
development was determined by estimating the stage of development of each in-
process research and development project at the date of acquisition, estimating
cash flows resulting from the expected revenue generated from such projects,
and discounting the net cash flows back to their present value using a discount
rate of 20%, which represents a premium to the Company's cost of capital. The
expected revenue assumes an average compound annual revenue growth rate of 37%
during fiscal years 1999 to 2007. Expected total revenue from the purchased in-
process projects peak in fiscal year 2002 and then begin to decline as other
new products are expected to be introduced. These projections were based on
management's estimates of market size and growth, expected trends in technology
and the expected timing of new product introductions. If products are not
successfully developed, the Company may not realize the value assigned to the
in-process research and development projects. In addition, the value of the
other acquired intangible assets may also become impaired.

The following unaudited pro forma information has been prepared assuming
that the acquisition had taken place at the beginning of fiscal year 1998. The
pro forma financial information is not necessarily indicative of the combined
results that would have occurred had the acquisition taken place at the
beginning of the periods, nor is it necessarily indicative of results that may
occur in the future.

<TABLE>
<CAPTION>
Year Ended Year Ended
March 31, March 31,
1998 1999
---------- ----------
(In thousands)
<S> <C> <C>
Revenue.............................................. $5,866,237 $4,942,367
Net income .......................................... $ 152,345 $ 48,755
Net income per share:
Basic.............................................. $ 1.10 $ 0.30
Diluted............................................ $ 0.95 $ 0.28
</TABLE>

Note 6 Loss from Investee

On May 16, 1997, the Company sold a controlling interest in its recording
heads operations to MKE, thereby forming a recording heads joint venture with
MKE, MKE-Quantum Components LLC ("MKQC"). The operations were involved in the
research, development, and manufacture of MR recording heads used in the
Company's hard disk drive products manufactured by MKE.

Quantum contributed recording heads assets and operations, and leased
certain premises to MKQC. The recording heads assets that Quantum contributed
to MKQC consisted of inventory, equipment, accounts receivable, and
intangibles, which aggregated $211 million. MKQC assumed $51 million of debt
payable to Quantum and assumed $24 million of third-party liabilities. MKE paid
Quantum $94 million and contributed $110 million to MKQC in exchange for a 51%
majority ownership interest in MKQC. Quantum retained a 49% minority ownership
interest in MKQC. Quantum employees who were involved in the recording heads
operations became employees of MKQC.

MKE and the Company shared pro rata in MKQC's results of operations and
agreed to share pro rata in any capital funding requirements.

F-14
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Subsequent to May 16, 1997, the Company accounted for its 49% interest in
MKQC using the equity method of accounting. The results of the Company's
involvement in recording heads through May 15, 1997, were consolidated.

The Company provided support services to MKQC. The support services were
mainly finance, human resources, legal, and computer support. MKQC reimbursed
the Company for the estimated cost of the services.

Summarized Financial Information

The following is summarized financial information for MKQC:

<TABLE>
<CAPTION>
Period from
May 16, 1997, to
March 31, 1998
----------------
(In thousands)
<S> <C>
Revenue................................................... $ 165,775
Gross profit (loss)....................................... (43,677)
Loss from operations...................................... (131,693)
Net loss.................................................. (134,816)
<CAPTION>
March 31, 1998
----------------
<S> <C>
Current assets............................................ $ 49,520
Noncurrent assets......................................... 213,230
Current liabilities....................................... 94,707
Note payable to Quantum................................... 50,823
Other noncurrent liabilities.............................. 14,964
</TABLE>

On October 28, 1998, the Company and MKE agreed to dissolve MKQC because
MKQC had not been able to produce MR recording heads on a cost-effective basis.
In connection with the dissolution, MKE has taken control and ownership of
MKQC's manufacturing operations in Batam, Indonesia; MKQC's domestic operations
have ceased; and its domestic assets are in liquidation. In the third quarter
of fiscal year 1999, the Company recorded a $101 million loss from investee
which includes a write-off of Quantum's investment in MKQC; a write-down of
Quantum's interest in facilities in Louisville, Colorado, and Shrewsbury,
Massachusetts that were occupied by MKQC; warranty costs resulting from MR
recording heads manufactured by MKQC; and Quantum's 49% pro rata share in
funding MKQC's repayment of its obligations, bank debt, accounts payable, and
other liabilities through June 1999 when the liquidation of MKQC is expected to
be completed.

MKQC's unaudited net loss for the six months ended September 27, 1998 was
$84 million on revenue of $62 million. The Company's 49% interest in this net
loss was $41 million.

F-15
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 7 Credit Agreements, Long-Term Debt and Convertible Subordinated Debt

Quantum's debt includes the following:

<TABLE>
<CAPTION>
March 31,
-----------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
7% convertible subordinated notes........................ $287,500 $287,500
Revolving credit line, 6.0% average rate, payable through
June 2000............................................... -- 18,000
Mortgage................................................. 40,920 39,985
-------- --------
328,420 345,485
Less short-term portion of debt.......................... 935 1,024
-------- --------
Total long-term debt and convertible subordinated debt... $327,485 $344,461
======== ========
</TABLE>

In June 1997, the Company entered into an unsecured senior credit facility
that provides a $500 million revolving credit line and expires in June 2000. At
the option of the Company, borrowings under the revolving credit line bear
interest at either LIBOR plus a margin determined by a total funded debt ratio,
or a base rate, with option periods of one to six months. As of March 31, 1998
and March 31, 1999, there was no outstanding balance drawn on this line.

In July 1997, the Company issued $288 million of 7% convertible subordinated
notes. The notes mature on August 1, 2004, and are convertible at the option of
the holder at any time prior to maturity, unless previously redeemed, into
shares of the Company's common stock at a conversion price of $46.325 per
share. The notes are redeemable at the Company's option on or after August 1,
1999, and prior to August 1, 2001, under certain conditions related to the
price of the Company's common stock. Subsequent to August 1, 2001, the notes
are redeemable at the Company's option at any time. In the event of certain
changes involving all or substantially all of the Company's common stock, the
notes would become redeemable at the option of the holder. Redemption prices
range from 107% of the principal to 100% at maturity. The notes are unsecured
obligations subordinated in right of payment to all existing and future senior
indebtedness of the Company.

In September 1996, the Company entered into a $42 million mortgage related
to certain domestic facilities at an effective interest rate of approximately
10.1%. The term of the mortgage is 10 years, with monthly payments based on a
20-year amortization period, and a balloon payment at the end of the 10-year
term. The debt is secured by specified real estate.

Payments required on long-term debt outstanding at March 31, 1999, are $1.0
million in fiscal year 2000, $1.1 million in fiscal year 2001, $1.2 million in
fiscal year 2002, $1.3 million in fiscal year 2003 and $1.5 million in fiscal
year 2004.

In December 1998, ATL entered into a senior credit facility that provides a
$35 million revolving credit line. The revolving credit line is co-terminous
with the Company's $500 million revolving credit line, expiring in June 2000.
At the option of ATL, borrowings under the revolving credit line bear interest
at either LIBOR plus a margin determined by a total funded debt ratio of the
Company, or a base rate, with option periods of one to six months. At March
31,1999, $18 million was outstanding on ATL's revolving credit line.

Note 8 Redeemable Preferred Stock

In fiscal year 1998, the holder of the 90,000 shares of Redeemable
Convertible Participating Series B Preferred Stock exercised its right to
convert the shares to Quantum common stock. The Company issued 180,000 shares
of its common stock pursuant to the conversion.

F-16
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 9 Stock Incentive Plans

Long-Term Incentive Plan. The Company has a Long-Term Incentive Plan (the
"Plan") that provides for the issuance of stock options, stock appreciation
rights, stock purchase rights, and long-term performance awards (collectively
referred to as "options") to employees, consultants, officers and affiliates of
the Company. The Plan has available and reserved for future issuance 19.2
million shares and allows for an annual increase in the number of shares
available for issuance, subject to a limitation. Available for grant as of
March 31, 1999, were 529,000 shares. Options under the Plan expire no later
than ten years from the grant date and generally vest over four years.
Restricted stock granted under the Plan generally vests over two to three
years. In fiscal years 1997, 1998 and 1999, the Company recorded compensation
expense of $1,916,000, $3,179,000 and $3,211,000, respectively, related to
restricted stock granted pursuant to stock purchase rights under the Plan. The
number of shares of restricted stock granted under the Plan were 354,290
shares, 65,500 shares and 157,200 shares in fiscal years 1997, 1998 and 1999,
respectively, at an exercise price of $.01.

Stock Option Plans. The Company has Stock Option Plans (the "Plans") under
which 5.1 million shares of common stock was reserved for future issuance at
March 31, 1999 to employees, officers and directors of the Company. Options
under the Plans are granted at prices determined by the Board of Directors, but
at not less than the fair market value, and accordingly no compensation
accounting has been required at the original date of grant. Options currently
expire no later than ten years from the grant date and generally vest ratably
over one to four years. At March 31, 1999, options with respect to 470,000
shares were available for grant.

Stock Option Summary Information. A summary of activity relating to the
Long-Term Incentive Plan and the Stock Option Plans follows:

<TABLE>
<CAPTION>
Year Ended March 31,
------------------------------------------------------------------
1997 1998 1999
---------------------- --------------------- ---------------------
Weighted-Avg. Weighted-Avg. Weighted-Avg.
Options Exercise Shares Exercise Shares Exercise
(000s) Price (000s) Price (000s) Price
------- ------------- ------ ------------- ------ -------------
<S> <C> <C> <C> <C> <C> <C>
Outstanding at beginning
of period.............. 16,746 $6.75 16,354 $ 7.52 17,005 $12.09
Granted................. 5,850 $8.59 6,163 $19.80 10,781 $21.51
Canceled................ (1,564) $7.94 (718) $14.11 (1,880) $22.63
Exercised............... (4,678) $5.97 (4,794) $ 6.10 (2,530) $ 7.23
------ ------ ------
Outstanding at end of
period................. 16,354 $7.52 17,005 $12.09 23,376 $14.68
====== ====== ======
Exercisable at end of
period................. 8,514 $6.53 8,332 $ 8.84 11,786 $10.65
====== ====== ======
</TABLE>

The range of exercise prices for options outstanding at March 31, 1999 was
$2.17 to $30.81. Compensation expense of $475,000, $1,057,000 and $2,188,000
was recorded in fiscal years 1997, 1998 and 1999, respectively, on accelerated
stock options under the Plans.

F-17
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The following tables summarize information about options outstanding at
March 31, 1999:

<TABLE>
<CAPTION>
Outstanding Options
----------------------------------------------------------
Shares Outstanding at Weighted-Average
March 31, 1999 Remaining Weighted-Average
Range of Exercise Prices (000s) Contractual Life Exercise Price
------------------------ --------------------- ----------------- ----------------
<C> <C> <S> <C>
$ 2.17 -- $ 8.75 7,842 6.09 $ 6.23
$ 8.78 -- $19.81 7,816 7.88 $15.37
$20.19 -- $30.81 7,718 9.28 $22.56
------
23,376 7.74 $14.68
======
</TABLE>

<TABLE>
<CAPTION>
Options Exercisable
-------------------------------------------
Shares
Exercisable at
March 31, 1999 Weighted-Average
Range of Exercise Prices (000s) Exercise Price
------------------------ -------------- ----------------
<C> <C> <S>
$ 2.17 -- $ 8.75 6,576 $ 6.24
$ 8.78 -- $19.81 4,095 $14.28
$20.19 -- $30.81 1,115 $23.30
------
11,786 $10.65
======
</TABLE>

Expiration dates ranged from May 8, 1999 to May 1, 2009 for options
outstanding at March 31, 1999. Prices for options exercised during the three-
year period ended March 31, 1999, ranged from $0.01 to $23.94. Proceeds
received by the Company from exercises are credited to common stock and capital
in excess of par value.

Completing the acquisition of ATL included the conversion of outstanding ATL
stock options into options to purchase 1.8 million shares of Quantum common
stock. These options relate to the Company's assumption of ATL's 1996 Stock
Incentive Plan and 1997 Stock Incentive Plan, collectively referred to as the
"ATL Plans." Under the terms of the ATL Plans, eligible key employees,
directors and consultants received options to purchase shares of ATL's
previously outstanding common stock at prices not less than 100% for incentive
stock options and not less than 85% for nonqualified stock options of the fair
value on the date of grant as determined by ATL's Board of Directors. Options
under ATL Plans vest over a three year period and expire ten years after date
of grant or 90 days after termination of employment. Subsequent to completing
the acquisition of ATL, no additional grants may be made from the ATL Plans.
See Note 5 for more information on the acquisition of ATL.

Stock Purchase Plan. The Company has an employee stock purchase plan (the
"Purchase Plan") that allows for the purchase of stock at 85% of fair market
value at the date of grant or the exercise date, whichever value is less. The
Purchase Plan is qualified under Section 423 of the Internal Revenue Code. Of
the 22.8 million shares authorized to be issued under the plan, 1,366,000
shares were available for issuance at March 31, 1999. Employees purchased
3,216,000 shares, 3,454,000 shares, and 2,555,000 shares under the Purchase
Plan in fiscal years 1997, 1998, and 1999, respectively. The weighted average
exercise price of stock purchased under the Purchase Plan was $5.41, $6.22 and
$9.41 in fiscal years 1997, 1998, and 1999, respectively.

Pro forma information. Pro forma information regarding net income and
earnings per share is required by SFAS No. 123. This information is required to
be determined as if the Company had accounted for its employee stock options
(including shares issued under the Long-Term Incentive Plan, Stock Option
Plans, and the Stock Purchase Plan, collectively called "options") granted
subsequent to March 31, 1995, under the fair value method of that statement.

F-18
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The fair value of options granted in fiscal years 1997, 1998 and 1999
reported below have been estimated at the date of grant using a Black-Scholes
option pricing model with the following weighted average assumptions:

<TABLE>
<CAPTION>
Long-Term Incentive Plan
and Stock Option Plans Stock Purchase Plan
----------------------------------- -----------------------------------
Fiscal 1997 Fiscal 1998 Fiscal 1999 Fiscal 1997 Fiscal 1998 Fiscal 1999
----------- ----------- ----------- ----------- ----------- -----------
<S> <C> <C> <C> <C> <C> <C>
Option life (in years).. 2.9 2.9 3.1 0.8 1.6 1.4
Risk-free interest
rate................... 6.0% 6.25% 5.52% 6.0% 6.13% 5.85%
Stock price volatility.. .50 .56 .61 .50 .53 .56
Dividend yield.......... -- -- -- -- -- --
</TABLE>

The Black-Scholes option-pricing model was developed for use in estimating
the fair value of traded options that have no vesting restrictions and are
fully transferable. In addition, option valuation models require the input of
highly subjective assumptions, including the expected stock price volatility.
Because the Company's options have characteristics significantly different from
those of traded options, and because changes in the subjective input
assumptions can materially affect the fair value estimate, in the opinion of
management, the existing models do not necessarily provide a reliable single
measure of the fair value of the options.

The following is a summary of weighted-average grant date fair values:

<TABLE>
<CAPTION>
Weighted-Average Grant Date Fair
Value
-----------------------------------
Fiscal 1997 Fiscal 1998 Fiscal 1999
----------- ----------- -----------
<S> <C> <C> <C>
Options granted under the Long-Term
Incentive
Plan and Stock Option Plans......... $ 3.67 $ 8.39 $ 9.86
Restricted stock granted under the
Long-Term
Incentive Plan...................... $14.28 $23.68 $22.40
Shares granted under the Stock
Purchase Plan....................... $ 2.46 $ 3.56 $ 4.86
</TABLE>

For purposes of pro forma disclosures, the estimated fair value of the
options is amortized to expense over the option's vesting period. The Company's
pro forma net income (loss) and net income (loss) per share follows:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------
1997 1998 1999
-------- -------- --------
<S> <C> <C> <C>
Net income (loss) (in thousands).............. $132,678 $139,907 $(83,964)
======== ======== ========
Net income (loss) per share:
Basic....................................... $ 1.13 $ 1.03 $ (0.52)
======== ======== ========
Diluted..................................... $ 0.93 $ 0.88 $ (0.52)
======== ======== ========
</TABLE>

As SFAS No. 123 is applicable only to options granted subsequent to March
31, 1995, its pro forma effect will not be fully reflected until fiscal year
2001.

F-19
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 10 Common Stock and Stockholder Rights Plan

Effective April 28, 1997, the number of authorized shares of common stock
increased to 500,000,000 from 150,000,000. The number of authorized shares of
Preferred Stock is 4,000,000.

The Company has a stockholder rights plan (the "Rights Plan") that provides
existing stockholders with the right to purchase 1/1000 preferred share for
each common share held in the event of certain changes in Quantum's ownership.
Subject to certain exceptions, if any person or group becomes the beneficial
owner of 20% or more of the outstanding common stock each right will entitle
its holder to purchase 1/1000 preferred share or, under certain circumstances,
shares of common stock with a market value twice the exercise price of the
right. The Rights Plan may serve as a deterrent to takeover tactics that are
not in the best interests of stockholders. There are 1,000,000 preferred shares
reserved for issuance under the Rights Plan.

Note 11 Earnings Per Share

SFAS No. 128 replaced the previously reported primary and fully diluted net
income (loss) per share with basic and diluted net income (loss) per share.
Unlike primary net income (loss) per share, basic net income (loss) per share
excludes any dilutive effects of options and convertible securities. Diluted
net income (loss) per share is very similar to the previously reported fully
diluted net income (loss) per share.

The following table sets forth the computation of basic and diluted net
income (loss) per share:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------
1997 1998 1999
-------- -------- --------
(In thousands, except per
share data)
<S> <C> <C> <C>
Numerator:
Numerator for basic net income (loss) per share--
income (loss) available to common stockholders.. $148,515 $170,801 $(29,535)
Effect of dilutive securities:
6 3/8% convertible subordinated debentures....... 3,135 -- --
5% convertible subordinated debentures........... 7,240 6,668 --
-------- -------- --------
Numerator for diluted net income (loss) per
share--income (loss) available to common
stockholders.................................... $158,890 $177,469 $(29,535)
======== ======== ========
Denominator:
Denominator for basic net income (loss) per
share--weighted average shares.................. 117,218 136,407 160,670
Effect of dilutive securities:
Outstanding options.............................. 5,388 9,600 --
Series B preferred stock......................... 23 90 --
6 3/8% convertible subordinated debentures....... 9,032 -- --
5% convertible subordinated debentures........... 21,626 19,919 --
-------- -------- --------
Denominator for diluted net income (loss) per
share--adjusted weighted average shares and
assumed conversions.............................. 153,287 166,016 160,670
======== ======== ========
Basic net income (loss) per share................ $ 1.27 $ 1.25 $ (0.18)
======== ======== ========
Diluted net income (loss) per share.............. $ 1.04 $ 1.07 $ (0.18)
======== ======== ========
</TABLE>

F-20
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The computation of diluted net income (loss) per share in fiscal years 1998
and 1999 excluded the effect of the 7% convertible subordinated notes issued in
July 1997, which are convertible into 6,206,152 shares at a conversion price of
$46.325 per share, because the effect would have been anti-dilutive.

Options to purchase 23,376,499 shares of common stock were outstanding at
March 31,1999. However, the corresponding weighted average outstanding options
were not included in the computation of diluted net loss per share for the
fiscal year ended March 31, 1999, because the effect would have been anti-
dilutive.

Note 12 Savings and Investment Plan

Substantially all of the regular domestic employees are eligible to make
contributions to the Company's 401(k) savings and investment plan. The Company
matches a percentage of the employees' contributions and may also make
additional discretionary contributions to the plan. Company contributions were
$5 million, $6 million and $7 million, in fiscal years 1997, 1998 and 1999,
respectively.

Note 13 Income Taxes

The income tax provision consists of the following:

<TABLE>
<CAPTION>
Year Ended March 31,
----------------------------
1997 1998 1999
-------- -------- --------
(In thousands)
<C> <S> <C> <C> <C>
Federal: Current........................... $ 13,344 $ 19,343 $(15,431)
Deferred.......................... (10,289) 12,396 26,392
-------- -------- --------
3,055 31,739 10,961
-------- -------- --------
State: Current........................... 9,669 19,814 3,856
Deferred.......................... 1,441 (17,803) 22
-------- -------- --------
11,110 2,011 3,878
-------- -------- --------
Foreign: Current........................... 20,088 26,857 18,021
Deferred.......................... 17,928 (593) (3,510)
-------- -------- --------
38,016 26,264 14,511
-------- -------- --------
Income tax provision........................ $ 52,181 $ 60,014 $ 29,350
======== ======== ========
</TABLE>

The tax benefits associated with nonqualified stock options, disqualifying
dispositions of incentive stock options, and employee stock purchase plan
shares reduce taxes currently payable as shown above by $11 million,
$21 million, and $17 million in fiscal years 1997, 1998, and 1999,
respectively. Such benefits are credited to capital in excess of par value when
realized.

F-21
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The Company's income tax provision differs from the amount computed by
applying the federal statutory rate of 35% to income before income taxes as
follows:

<TABLE>
<CAPTION>
Year Ended March 31,
-------------------------
1997 1998 1999
------- ------- -------
(In thousands)
<S> <C> <C> <C>
Tax at federal statutory rate................. $70,243 $80,788 $ (65)
State income tax, net of federal benefit...... 7,222 1,307 2,521
Research and development credit............... -- (7,680) (2,265)
Foreign earnings taxed at less than U.S.
rates........................................ (17,169) (15,813) (5,004)
Valuation allowance........................... (8,431) -- --
Acquired ATL in-process research and
development.................................. -- -- 31,150
Other items................................... 316 1,412 3,013
------- ------- -------
$52,181 $60,014 $29,350
======= ======= =======
</TABLE>

Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes.

Significant components of deferred tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
Year Ended March
31,
--------------------
1998 1999
--------- ---------
(In thousands)
<S> <C> <C>
Deferred tax assets:
Inventory valuation methods...................... $ 57,630 $ 39,770
Accrued warranty expense......................... 33,824 24,041
Allowance for doubtful accounts.................. 4,563 3,379
Distribution reserves............................ 7,002 10,363
Restructuring charges............................ 20,422 4,331
Other accruals and reserves not currently
deductible for tax purposes..................... 27,927 39,627
Depreciation methods............................. 24,634 47,429
Amortization methods............................. 30,711 31,448
--------- ---------
206,713 200,388
--------- ---------
Deferred tax liabilities:
Foreign inventory valuation methods.............. (17,322) (13,810)
Tax on unremitted foreign earnings net of foreign
tax credits and foreign deferred taxes.......... (77,180) (97,817)
Acquired ATL intangibles......................... -- (33,602)
Other............................................ (16,899) (14,798)
--------- ---------
(111,401) (160,027)
--------- ---------
Net deferred tax asset............................. $ 95,312 $ 40,361
========= =========
</TABLE>

Pretax income from foreign operations was $241 million, $139 million, and
$120 million for the fiscal years ended March 31, 1997, 1998, and 1999,
respectively. U.S. taxes have not been provided for unremitted foreign earnings
of $354 million. The residual U.S. tax liability if such amounts were remitted
would be approximately $87 million.

F-22
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The Company's federal income tax returns have been examined by the Internal
Revenue Service (IRS) for all years through 1993. All issues have been resolved
with no material effect, and the IRS has closed those years. The Company's
federal tax returns for the years 1994-1996 are presently under examination by
the IRS. Management believes sufficient accruals have been provided in prior
years for any adjustments that may result for the years under examination.

Note 14 Litigation

The Company and certain of its current and former officers and directors
have been named as defendants in two class-action lawsuits, one filed on August
28, 1996, in the Superior Court of Santa Clara County, California, and one
filed on August 30, 1996, in the U.S. District Court of the Northern District
of California. The plaintiff in both class actions purports to represent a
class of all persons who purchased the Company's common stock between February
26, 1996, and June 13, 1996. The complaints allege that the defendants violated
various federal securities laws and California statutes by concealing and/or
misrepresenting material adverse information about the Company and that
individual defendants sold shares of the Company's stock based on material
nonpublic information.

On February 25, 1997, in the Santa Clara County action, the Court sustained
defendants' demurrer to most of the causes of action in the complaint, with
leave to amend. At a June 12, 1997 demurrer hearing in state court, the judge
dismissed the action as to four of the individual defendants with prejudice and
as to three of the individual defendants without prejudice. The demurrer as to
the Company was overruled. The Court heard oral argument on plaintiffs' motion
for class certification on November 4, 1997. On March 4, 1998, the Court
entered an order denying plaintiffs' motion without prejudice. Limited
discovery is proceeding.

With respect to the federal action, defendants filed their motion to dismiss
on April 16, 1997. On August 14, 1997, the Court granted defendants' motion to
dismiss without prejudice. On September 11, 1997, plaintiff filed an amended
complaint. Defendants filed a motion to dismiss the amended complaint on
October 24, 1997. The hearing on defendants' motion took place on February 3,
1998. On April 16, 1998, the Court granted defendants' motion to dismiss with
prejudice. On May 19, 1998, plaintiff filed a notice of appeal of the District
Court's dismissal in the United States Court of Appeals for the Ninth Circuit.
On September 25, 1998, plaintiff filed his opening appellate brief. Defendants
filed their answering brief on November 30, 1998. Plaintiff's reply brief was
filed on January 14, 1999.

Certain of the Company's current and former officers and directors were also
named as defendants in a derivative lawsuit, which was filed on November 8,
1996, in the Superior Court of Santa Clara County. The derivative complaint was
based on factual allegations substantially similar to those alleged in the
class-action lawsuits. Defendants' demurrer to the derivative complaint was
sustained without prejudice on April 14, 1997. Plaintiffs did not file an
amended complaint. On August 7, 1997, the Court issued an order of dismissal
and entered final judgment dismissing the complaint.

On August 7, 1998, the Company was named as one of several defendants in a
patent infringement lawsuit filed in the U.S. District Court for the Northern
District of Illinois, Eastern Division. On Quantum's motion, the suit has been
moved to the Northern District of California. The plaintiff, Papst Licensing
GmbH, owns at least 24 U.S. patents which it asserts that the Company has
infringed. The Company has studied many of these patents before and, of the
patents it has studied, believes that defenses of patent invalidity and non-
infringement can be asserted. However, Quantum has not yet had time to make a
complete study of all the patents asserted by Papst and there can be no
assurance that the Company has not infringed on these or other patents owned by
Papst. The final results of this litigation, as with any litigation, are
uncertain. If required, there can be no assurance that licenses to any
technology owned by Papst or any other third party alleging infringement could

F-23
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

be obtained on commercially reasonable terms if at all. Adverse resolution of
the Papst litigation or any other intellectual property litigation could
subject the Company to substantial liabilities and require it to refrain from
manufacturing certain products which could have a material adverse effect on
the Company's business, financial condition or results of operations. In
addition, the costs of engaging in the Papst litigation or other intellectual
property litigation could be substantial, regardless of the outcome.

The Company is also subject to other legal proceedings and claims that arise
in the ordinary course of its business. While management currently believes the
amount of ultimate liability, if any, with respect to these actions will not
materially affect the financial position, results of operations, or liquidity
of the Company, the ultimate outcome of any litigation is uncertain. Were an
unfavorable outcome to occur, the impact could be material to the Company.

Note 15 Commitments

The Company leases its present facilities under non-cancelable operating
lease agreements for periods of up to 15 years. Some of the leases have renewal
options ranging from one to ten years and contain provisions for maintenance,
taxes, or insurance.

Rent expense was $26 million, $27 million, and $32 million for the fiscal
years ended March 31, 1997, 1998, and 1999, respectively.

Future minimum lease payments under operating leases are as follows:

<TABLE>
<CAPTION>
Year ended March 31, (In thousands)
<S> <C>
2000...................................................... $ 27,697
2001...................................................... 26,265
2002...................................................... 25,667
2003...................................................... 24,726
2004...................................................... 21,550
Thereafter................................................ 81,369
--------
Total future minimum lease payments....................... $207,274
========
</TABLE>

Note 16 Business Segment and Geographic Information

Quantum Corporation's reportable segments are its two business groups, the
Hard Disk Drive group and the DLT & Storage Systems group, as further described
in their separate financial statements. The Hard Disk Drive Group consists of
desktop and high-end hard disk drives. The DLT & Storage Systems group consists
of DLTtape drives and media, autoloaders and libraries, and solid state storage
systems. The Company directly markets its products to computer manufacturers
and through a broad range of distributors, resellers, and systems integrators.

F-24
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

The accounting policies of the reportable segments are the same as those
described in the summary of significant accounting policies. The Company
evaluates segment performance based on net profit or loss not including non-
recurring gains or losses. Segment assets include those items that can be
specifically identified with or reasonably allocated to a particular segment.

<TABLE>
<CAPTION>
Year Ended March 31,
-------------------------------------------------------------------------------------
1997 1998 1999
--------------------------- --------------------------- ---------------------------
The DLT & The DLT & The DLT &
The Hard Storage The Hard Storage The Hard Storage
Disk Drive Systems Disk Drive Systems Disk Drive Systems
Group Group Total Group Group Total Group Group Total
---------- --------- ------ ---------- --------- ------ ---------- --------- ------
(In millions)
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Revenue................. $4,591 $728 $5,319 $4,615 $1,190 $5,805 $3,599 $1,303 $4,902
Interest and other
income/
(expense).............. (15) (26) (41) 4 (3) 1 10 (12) (2)
Depreciation and
amortization........... 109 15 124 68 24 92 71 42 113
Loss from investee...... -- -- -- (66) -- (66) (142) -- (142)
Income tax expense
(benefit).............. (19) 72 52 (83) 143 60 (112) 141 29
Segment profit (loss)... 41 107 149 (53) 224 171 (153) 123 (30)
Segment assets.......... 1,721 438 2,159 1,646 792 2,438 1,470 1,014 2,484
Expenditures for long-
lived assets........... 164 11 175 129 47 176 83 33 116
</TABLE>

Product Information

Revenue for reportable segments is composed of the following:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------
1997 1998 1999
------ ------ ------
(In millions)
<S> <C> <C> <C>
Hard Disk Drive group:
Desktop hard disk drives........................... $4,004 $3,981 $3,079
High-end hard disk drives.......................... 587 634 520
------ ------ ------
Total.............................................. $4,591 $4,615 $3,599
====== ====== ======
DLTtape & Storage Systems group:
DLTtape drives..................................... $ 392 $ 784 $ 872
DLTtape media cartridge product.................... 221 284 195
DLTtape media cartridge royalties.................. 8 27 122
Tape libraries and service......................... 96 87 148
Solid state storage systems........................ 11 8 6
Intra-group elimination............................ -- -- (40)
------ ------ ------
Total.............................................. $ 728 $1,190 $1,303
====== ====== ======
</TABLE>

Intra-group elimination represents intra-group sales of DLTtape drives
incorporated into the DLT & Storage Systems group's tape libraries.

F-25
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Geographic Information

Revenue and long-lived assets by region are as follows (revenue is
attributed to regions based on the location of customers):

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------------------------------
1997 1998 1999
------------------ ------------------ ------------------
Long-Lived Long-Lived Long-Lived
Revenue Assets Revenue Assets Revenue Assets
------- ---------- ------- ---------- ------- ----------
(In millions)
<S> <C> <C> <C> <C> <C> <C>
United States.... $2,513 $374 $3,048 $271 $2,552 $457
Europe........... 1,620 13 1,689 13 1,315 12
Asia-Pacific..... 1,082 62 993 25 930 28
Latin America.... 104 -- 75 -- 105 --
------ ---- ------ ---- ------ ----
Total.......... $5,319 $449 $5,805 $309 $4,902 $497
====== ==== ====== ==== ====== ====
</TABLE>

One customer of both of the Company's reportable segments accounted for 10%
or more of the Company's consolidated revenue in fiscal years 1997, 1998 and
1999. Revenue from this customer represented $856 million, $1,036 million and
$704 million of the Company's consolidated revenue in the respective periods.
Another customer of both of the Company's reportable segments accounted for 10%
or more of the Company's consolidated revenue in fiscal years 1997, 1998 and
1999. Revenue from this customer represented $562 million, $759 million and
$678 million of the Company's consolidated revenue in the respective periods.

F-26
<PAGE>

QUANTUM CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

Note 17 Unaudited Quarterly Consolidated Financial Data

<TABLE>
<CAPTION>
Year Ended March 31, 1999
------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands, except per share data)
<S> <C> <C> <C> <C>
Revenue................. $1,103,023 $1,164,711 $1,325,581 $1,308,741
Gross profit............ 166,373 191,889 239,089 273,987
Net income (loss)....... 3,010 17,264 (106,551) 56,742
Net income (loss) per
share:
Basic................. 0.02 0.11 (0.64) .34
Diluted............... 0.02 0.11 (0.64) .33
<CAPTION>
Year Ended March 31, 1998
------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ----------- -----------
(In thousands, except per share data)
<S> <C> <C> <C> <C>
Revenue................. $1,446,144 $1,553,491 $1,519,881 $1,285,719
Gross profit............ 275,934 298,084 135,673 165,831
Net income (loss)....... 96,514 103,778 (32,183) 2,692
Net income (loss) per
share:
Basic................. 0.74 0.77 (0.24) 0.02
Diluted............... 0.61 0.63 (0.24) 0.02
</TABLE>

The results of operations for the third quarter of fiscal year 1999
included the effect of a $101 million charge related to the dissolution of
MKQC, and an $89 million charge related to purchased in-process research
and development related to the acquisition of ATL.

The results of operations for the third quarter of fiscal year 1998
included the effect of a $103 million special charge related to the
Company's high-end hard disk drive products.

The results of operations for the fourth quarter of fiscal year 1998 were
impacted by the reduction in estimated bonus accrued earlier in the fiscal
year.

F-27
<PAGE>

REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

To the Board of Directors and Stockholders of
Quantum Corporation

We have audited the accompanying combined balance sheets of the DLT &
Storage Systems group (as described in Note 1) of Quantum Corporation as of
March 31, 1998 and 1999 and the related combined statements of operations,
group equity, and cash flows for each of the three years in the period ended
March 31, 1999. These financial statements are the responsibility of Quantum
Corporation's management. Our responsibility is to express an opinion on these
financial statements based on our audits.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of the DLT & Storage Systems
group at March 31, 1998 and 1999 and the results of its operations and its cash
flows for each of the three years in the period ended March 31, 1999, in
conformity with generally accepted accounting principles.

As more fully described in Note 1 to these financial statements, the DLT &
Storage Systems group is a business group of Quantum Corporation; accordingly,
the combined financial statements of the DLT & Storage Systems group should be
read in conjunction with the audited consolidated financial statements of
Quantum Corporation.

/s/ Ernst & Young LLP

Palo Alto, California
April 26, 1999

F-28
<PAGE>

DLT & STORAGE SYSTEMS GROUP

COMBINED STATEMENTS OF OPERATIONS
(In thousands, except per share data)

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------
1997 1998 1999
-------- ---------- ----------
<S> <C> <C> <C>
Product revenue.............................. $719,925 $1,162,725 $1,181,273
Royalty revenue.............................. 8,088 27,075 121,463
-------- ---------- ----------
Total revenue................................ 728,013 1,189,800 1,302,736
Cost of revenue.............................. 457,674 687,586 722,817
-------- ---------- ----------
Gross profit................................. 270,339 502,214 579,919
Operating expenses:
Research and development................... 30,039 62,825 99,330
Sales and marketing........................ 23,770 47,244 76,737
General and administrative................. 11,470 22,363 38,158
Purchased in-process research and
development............................... -- -- 89,000
-------- ---------- ----------
65,279 132,432 303,225
-------- ---------- ----------
Income from operations....................... 205,060 369,782 276,694
Interest income and other, net............... 2,387 18,707 5,946
Interest expense............................. (28,347) (21,835) (18,322)
-------- ---------- ----------
Income before income taxes................... 179,100 366,654 264,318
Income tax provision......................... 71,640 142,995 141,327
-------- ---------- ----------
Net income................................... $107,460 $ 223,659 $ 122,991
======== ========== ==========
Pro forma net income per share:
Basic...................................... $ 0.77
==========
Diluted.................................... $ 0.73
==========
Pro forma weighted-average common shares:
Basic...................................... 160,670
==========
Diluted.................................... 167,407
==========
</TABLE>

See accompanying notes to combined financial statements.

F-29
<PAGE>

DLT & STORAGE SYSTEMS GROUP

COMBINED BALANCE SHEETS
(In thousands)

<TABLE>
<CAPTION>
March 31,
-------------------
1998 1999
-------- ----------
<S> <C> <C>
Assets
Current assets:
Cash and cash equivalents................................ $388,910 $ 272,643
Accounts receivable, net of allowance for doubtful
accounts of $2,586 and $2,507 respectively.............. 152,080 254,228
Inventories.............................................. 103,028 124,462
Deferred taxes........................................... 43,819 35,594
Other current assets..................................... 6,582 8,434
-------- ----------
Total current assets...................................... 694,419 695,361
Property, plant and equipment, less accumulated
depreciation............................................. 57,399 73,122
Intangible assets, less accumulated amortization.......... 15,366 220,368
Other assets.............................................. 24,886 24,792
-------- ----------
$792,070 $1,013,643
======== ==========
Liabilities and Group Equity
Current liabilities:
Accounts payable......................................... $ 44,919 $ 64,025
Accrued warranty......................................... 33,778 37,988
Accrued compensation..................................... 15,985 22,557
Current portion of long-term debt........................ 623 683
Other accrued liabilities................................ 12,720 32,850
-------- ----------
Total current liabilities................................. 108,025 158,103
Deferred taxes............................................ 145 27,355
Long-term debt............................................ 26,657 37,974
Convertible subordinated debt............................. 191,667 191,667
Commitments and contingencies.............................
Group equity.............................................. 465,576 598,544
-------- ----------
$792,070 $1,013,643
======== ==========
</TABLE>

See accompanying notes to combined financial statements.

F-30
<PAGE>

DLT & STORAGE SYSTEMS GROUP

COMBINED STATEMENTS OF CASH FLOWS
(In thousands)

<TABLE>
<CAPTION>
Year Ended March 31,
-------------------------------
1997 1998 1999
--------- --------- ---------
<S> <C> <C> <C>
Cash flows from operating activities:
Net income................................... $ 107,460 $ 223,659 $ 122,991
Adjustments to reconcile net income to net
cash provided by operations:
Purchased in-process research and
development................................. -- -- 89,000
Depreciation................................. 7,780 15,484 25,952
Amortization................................. 7,649 8,160 15,955
Deferred taxes............................... (17,821) (11,340) 3,388
Compensation related to stock incentive
plans....................................... 1,594 2,824 3,757
Changes in assets and liabilities:
Accounts receivable......................... (75,341) 2,588 (78,727)
Inventories................................. 2,905 (55,831) 2,666
Accounts payable............................ 23,602 (2,863) 2,769
Accrued warranty............................ 15,141 4,676 3,359
Other assets and liabilities................ 19,532 15,300 25,995
--------- --------- ---------
Net cash provided by operating activities..... 92,501 202,657 217,105
--------- --------- ---------
Cash flows from investing activities:
Purchases of equity securities............... (2,732) (15,000) (1,750)
Acquisition of intangible assets............. -- (16,000) --
Investment in property and equipment......... (11,442) (30,682) (33,176)
Proceeds from disposition of property or
equipment................................... -- -- 3
--------- --------- ---------
Net cash used in investing activities......... (14,174) (61,682) (34,923)
--------- --------- ---------
Cash flows from financing activities:
Proceeds from long-term credit facilities.... 220,061 -- 25,212
Inter-group payment for common stock issued.. -- -- (15,118)
Proceeds from mortgage loan.................. 28,070 -- --
Purchase of treasury stock................... -- -- (305,287)
Principal payments on long-term credit
facilities.................................. (252,226) (120,651) (31,445)
Proceeds from issuance of common stock....... 30,174 33,573 28,189
Proceeds from issuance of convertible
subordinated notes.......................... -- 191,667 --
--------- --------- ---------
Net cash provided by (used in) financing
activities................................... 26,079 104,589 (298,449)
--------- --------- ---------
Increase (decrease) in cash and cash
equivalents.................................. 104,406 245,564 (116,267)
Cash and cash equivalents at beginning of
period....................................... 38,940 143,346 388,910
--------- --------- ---------
Cash and cash equivalents at end of period.... $ 143,346 $ 388,910 $ 272,643
========= ========= =========
Supplemental disclosure of cash flow
information:
Conversion of debentures to common stock..... -- $ 160,900 --
========= ========= =========
Issuance of redeemable preferred stock as
part of minority interest acquisition....... $ 2,592 -- --
========= ========= =========
Conversion of redeemable preferred stock to
common stock................................ -- $ 2,592 --
========= ========= =========
Cash paid during the year for:
Interest..................................... $ 27,182 $ 19,353 $ 17,813
========= ========= =========
Income taxes, net of (refunds)............... $ 1,550 $ 44,747 $ (19,146)
========= ========= =========
</TABLE>

See accompanying notes to combined financial statements.

F-31
<PAGE>

DLT & STORAGE SYSTEMS GROUP

COMBINED STATEMENTS OF GROUP EQUITY
(In thousands)

<TABLE>
<CAPTION>
Retained Group
Other Earnings Equity
--------- --------- ---------
<S> <C> <C> <C>
Balances at March 31, 1996................... $(152,477) $ 34,880 $(117,597)
Net income................................... -- 107,460 107,460
Shares issued under employee stock purchase
plan........................................ 11,601 -- 11,601
Shares issued under employee stock option
plans, net.................................. 18,573 -- 18,573
Compensation expense and other............... 3,533 -- 3,533
Tax benefits related to stock option plans... 7,353 -- 7,353
--------- --------- ---------
Balances at March 31, 1997................... (111,417) 142,340 30,923
Net income................................... -- 223,659 223,659
Conversion of subordinated debentures........ 157,815 -- 157,815
Conversion of Series B preferred shares...... 2,592 -- 2,592
Shares issued under employee stock purchase
plan........................................ 14,318 -- 14,318
Shares issued under employee stock option
plans, net.................................. 19,255 -- 19,255
Compensation expense and other............... 2,824 -- 2,824
Tax benefits related to stock option plans... 14,190 -- 14,190
--------- --------- ---------
Balances at March 31, 1998................... 99,577 365,999 465,576
Net income................................... -- 122,991 122,991
Shares issued under employee stock purchase
plan........................................ 16,027 -- 16,027
Shares issued under employee stock option
plans, net.................................. 12,162 -- 12,162
Treasury shares repurchased.................. (305,287) -- (305,287)
Treasury shares reissued for ATL
acquisition................................. 305,287 (63,452) 241,835
New shares issued for ATL acquisition........ 15,326 -- 15,326
Conversion of ATL stock options.............. 14,911 -- 14,911
Compensation expense and other............... 3,757 -- 3,757
Tax benefits related to stock option plans... 11,246 -- 11,246
--------- --------- ---------
Balances at March 31, 1999................... $ 173,006 $ 425,538 $ 598,544
========= ========= =========
</TABLE>

See accompanying notes to combined financial statements.

F-32
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS

Note 1 Summary of Significant Accounting Policies

The accompanying combined financial statements should be read in conjunction
with the consolidated financial statements of Quantum Corporation ("Quantum").

Nature of Business. Quantum operates its business through two separate
groups: the DLT & Storage Systems group and the Hard Disk Drive group. The DLT
& Storage Systems group and the Hard Disk Drive group are referred to as the
"groups."

The Hard Disk Drive group designs desktop hard disk drives to meet the
storage requirements of entry-level to high-end desktop PCs in home and
business environments. The Hard Disk Drive group also designs high-end hard
disk drives for the demanding storage needs of network servers, workstations
and storage sub-systems.

The Board of Directors (the "Board") of Quantum has recommended stockholder
approval of a proposal (the "tracking stock proposal") that would create two
classes of tracking stock intended to reflect separately the performance of the
DLT & Storage Systems group and the Hard Disk Drive group. Under the tracking
stock proposal, Quantum's Certificate of Incorporation would be amended and
restated (the "Restated Certificate of Incorporation") to (i) designate a new
class of Quantum Corporation--the DLT & Storage Systems group Common Stock,
$.01 par value per share, (ii) designate a new class of Quantum Corporation--
the Hard Disk Drive group common stock, $.01 par value per share , and (iii)
reclassify each authorized share of existing common stock, $.01 par value per
share as one share of DLT & Storage Systems group stock and one-half share of
the Hard Disk Drive group stock.

The combined financial statements of the groups comprise all of the accounts
included in the corresponding consolidated financial statements of Quantum. The
separate group combined financial statements give effect to the accounting
policies that will be applicable upon implementation of the tracking stock
proposal. The separate the DLT & Storage Systems group and the Hard Disk Drive
group financial statements have been prepared on a basis that management
believes to be reasonable and appropriate and include (i) the historical
balance sheets, results of operations, and cash flows of businesses that
comprise each of the groups, with all significant intragroup transactions and
balances eliminated, (ii) in the case of the DLT & Storage Systems group's
financial statements, corporate assets and liabilities of Quantum and related
transactions identified with the DLT & Storage Systems group, including
allocated portions of Quantum's debt and selling, general and administrative
costs, and (iii) in the case of the Hard Disk Drive group's financial
statements, corporate assets and liabilities of Quantum and related
transactions identified with the Hard Disk Drive group, including allocated
portions of Quantum's debt and selling, general and administrative costs.

Holders of DLT & Storage Systems group stock and Hard Disk Drive group stock
will be stockholders of a single company. The DLT & Storage Systems group and
the Hard Disk Drive group are not separate legal entities. As a result,
stockholders will continue to be subject to all of the risks of an investment
in Quantum and all of Quantum's business, assets and liabilities. The issuance
of DLT & Storage Systems group stock and Hard Disk Drive group stock and the
allocation of assets or liabilities and stockholders' equity between the DLT &
Storage Systems group and the Hard Disk Drive group will not result in a
distribution or spin-off to stockholders of any of Quantum's assets or
liabilities and will not affect ownership of any of Quantum's assets or
responsibility for Quantum's liabilities or those of Quantum's subsidiaries.
The assets Quantum attributes to

F-33
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

one group could be subject to the liabilities of the other group. If Quantum is
unable to satisfy one group's liabilities out of the assets attributed to it,
Quantum may be required to satisfy those liabilities with assets Quantum has
attributed to the other group. Holders of DLT & Storage Systems group stock and
Hard Disk Drive group stock generally will not have stockholder rights specific
to their corresponding group. Instead, holders will have customary stockholder
rights relating to Quantum as a whole.

Holders of tracking stock will not have any rights related to their
corresponding group except as set forth in provisions relating to dividend
rights and requirements for a mandatory dividend, redemption or conversion upon
the disposition of all or substantially all of the assets of their
corresponding group, or have any right to vote on matters as a separate voting
group other than in limited circumstances as provided under Delaware law or by
New York Stock Exchange rules. The relative voting power of DLT & Storage
Systems group stock and Hard Disk Drive group stock will fluctuate from time to
time, with each share of DLT & Storage Systems group stock having one vote and
each share of Hard Disk Drive group stock having a number of votes, based upon
the ratio, over a specified period, of the average market values of one share
of DLT & Storage Systems group stock and of one share of Hard Disk Drive group
stock. This formula is intended to give each class of tracking stock a number
of votes proportionate to its aggregate market capitalization at the time of
any vote. Accordingly, changes in the market value of DLT & Storage Systems
group stock and Hard Disk Drive group stock will affect the relative voting
rights of a class of tracking stock. It is expected that initially the holders
of DLT & Storage Systems group stock will have a substantial majority of the
voting power of Quantum.

Financial effects arising from one group that affect the Quantum's
consolidated results of operations or financial condition could, if
significant, affect the results of operations or financial condition of the
other group and the market price of the class of tracking stock relating to the
other group. Any net losses of the DLT & Storage Systems group or the Hard Disk
Drive group, and dividends or distributions on, or repurchases of, DLT &
Storage Systems group stock or Hard Disk Drive group stock, or repurchases of
preferred stock at a price per share greater than par value, will reduce the
funds of Quantum legally available for payment of dividends on the DLT &
Storage Systems group stock.

The Board may at any time, in its sole discretion and without stockholder
approval, determine to convert the tracking stock related to one group into the
tracking stock related to the other group at a 10% premium during the first
five years following the implementation of the tracking stock proposal and
without any premium thereafter. The Board may also effect such a conversion at
no premium if, based on the legal opinion of Quantum's tax counsel, it is more
likely than not that for United States federal income tax purposes (i) Quantum
or its stockholders are, or at any time in the future will be, subject to tax
upon the issuance of shares of either DLT & Storage Systems group stock or Hard
Disk Drive group stock, or (ii) either DLT & Storage Systems group stock or
Hard Disk Drive group stock is not, or at any time in the future will not be,
treated as stock of Quantum. In the case of certain dispositions of all or
substantially all of the assets of one group, the Board may determine to
convert the tracking stock of such group into the tracking stock of the other
group at a 10% premium during the first five years following the implementation
of the tracking stock proposal and without any premium thereafter. Any
conversion at a premium would dilute the interests in Quantum of the holders of
the class of tracking stock being issued in the conversion. In addition, any
conversion of a class of tracking stock into another class of tracking stock
would preclude holders of both classes of tracking stock from retaining their
investment in a security that is intended to reflect separately the performance
of the relevant group.

The Board may modify or rescind our policies with respect to the allocation
of corporate overhead, taxes, debt, interest and other matters, or may adopt
additional policies in its sole discretion without stockholder approval.

The DLT & Storage Systems group's combined financial statements reflect the
application of the management and allocation policies adopted by the Board to
various corporate activities, as described below.

F-34
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Financing Activities. Quantum manages most financial activities of the DLT &
Storage Systems group and the Hard Disk Drive group on a centralized basis.
Such financial activities include the investment of surplus cash, the issuance
and repayment of short-term and long-term debt, the issuance and repurchase of
common stock, and the issuance and repurchase of any preferred stock.

At March 31, 1999, $230 million of Quantum's debt was allocated to the DLT &
Storage Systems group and $115 million was allocated to the Hard Disk Drive
group. The Board has adopted the following financing policy that will affect
the combined statements of the DLT & Storage Systems group and the Hard Disk
Drive group: Quantum will allocate its debt between the groups ("pooled debt")
or, if Quantum so determines, in its entirety to a particular group. Quantum
will allocate preferred stock, if issued, in a similar manner.

Cash allocated to one group that is used to repay pooled debt or redeem
pooled preferred stock decreases such group's allocated portion of the pooled
debt or preferred stock. Cash or other property allocated to one group that is
transferred to the other group, if so determined by the Board, decreases the
transferring group's allocated portion of the pooled debt or preferred stock
and, correspondingly, increases the recipient group's allocated portion of the
pooled debt or preferred stock.

Pooled debt bears interest for group financial statement purposes at a rate
equal to the weighted average interest rate of the debt calculated on a
quarterly basis and applied to the average pooled debt balance during the
period. Preferred stock, if issued and if pooled in a manner similar to the
pooled debt, may bear dividends for group financial statement purposes at a
rate based on the weighted average dividend rate of the preferred stock
similarly calculated and applied. Any expense related to increases in pooled
debt or preferred stock is reflected in the weighted average interest or
dividend rate of such pooled debt or preferred stock as a whole.

Debt for a particular financing allocated in its entirety to one group,
bears interest for group financial statement purposes at the rate determined by
the Board. For preferred stock allocated in its entirety to one group, the
dividend cost to that group is determined in a similar manner. If the interest
or dividend cost is higher than Quantum's actual cost, the other group receives
a credit for an amount equal to the difference as compensation for the use of
Quantum's credit capacity. Any expense related to debt or preferred stock that
is allocated in its entirety to a group is allocated in whole to that group.

Cash or other property that Quantum allocated to one group that is
transferred to the other group is, if so determined by the Board, accounted for
either as a short-term loan or as a long-term loan. Short-term loans and,
unless Quantum's board determines otherwise, long-term loans bear interest at a
rate equal to the weighted average interest rate of Quantum's pooled debt. If
Quantum does not have any pooled debt, the Board determines the rate of
interest for such loan. The Board establishes the terms on which long-term
loans between the groups is made, including interest rate if not based on
Quantum's weighted average interest rate, amortization schedule, maturity and
redemption terms.

Although Quantum may allocate its debt and preferred stock between groups,
the debt and preferred stock remain obligations of Quantum and all stockholders
of Quantum are subject to the risks associated with those obligations.

Allocation of Support Activities. The DLT & Storage Systems group is charged
for specifically identified costs of certain support activities based upon the
DLT & Storage Systems group's use of such activities. Where determinations
based on use alone were not practical, other methods and criteria were used to
provide a reasonable allocation of the cost of support activities attributable
to the DLT & Storage Systems group. Such allocated support activities included
certain selling and marketing, executive management, human resources, corporate
finance, legal and corporate planning costs. The total of these allocations
were $14 million, $28 million, and $30 million in fiscal years 1997, 1998 and
1999, respectively. It is not practicable to provide a detailed estimate of the
expenses which would be recognized if the DLT & Storage Systems group were a
separate entity.

F-35
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Allocation of Federal and State Income Taxes. The federal income taxes of
Quantum and the subsidiaries which own assets allocated between the groups are
determined on a consolidated basis. Consolidated federal income tax provisions
and related tax payments or refunds are allocated between the groups based
principally on the taxable income and tax credits directly attributable to each
group, as if each group were a stand-alone entity. Such allocations reflect
each group's contribution (whether positive or negative) to Quantum's
consolidated federal taxable income and the consolidated federal tax liability
and tax credit position. Tax benefits that cannot be used by the group
generating those benefits but can be used on a consolidated basis are credited
to the group that generated such benefits. Accordingly, the amounts of taxes
payable or refundable allocated to each group may not necessarily be the same
as that which would have been payable or refundable had each group filed a
separate income tax return.

Depending on the tax laws of the respective jurisdictions, state and local
income taxes are calculated on either a consolidated or combined basis or on a
separate corporation basis. State income tax provisions and related tax
payments or refunds determined on a consolidated or combined basis are
allocated between the groups based on their respective contributions to such
consolidated or combined state taxable incomes. State and local income tax
provisions and related tax payments which are determined on a separate
corporation basis are allocated between the groups in a manner designed to
reflect the respective contributions of the groups to the corporation's
separate state or local taxable income.

The discussion of the DLT & Storage Systems group's income tax provision
(Note 11) should be read in conjunction with Quantum's consolidated financial
statements and notes thereto.

Use of Estimates. The preparation of the financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amount of assets and
liabilities at the date of the financial statements and the reported amount of
revenues and expenses during the period. Actual results may differ from the
estimates and assumptions used in preparing the combined financial statements.

Revenue Recognition. Revenue from sales of products is recognized on
shipment to customers, with provision made for estimated returns. The DLT &
Storage Systems group accrues royalty revenue based on licensees' sales that
incorporate certain licensed technology.

Foreign Currency Transactions. Assets, liabilities, and operations of
foreign offices and subsidiaries are recorded based on the functional currency
of the entity. For a majority of the DLT & Storage Systems group's material
foreign operations, the functional currency is the U.S. Dollar. In addition, a
majority of the DLT & Storage Systems group's material transactions are
denominated in U.S. dollars. Accordingly, transaction gains or losses have been
immaterial to the financial statements for all years presented. The effect of
foreign currency exchange rate fluctuations on cash was also immaterial for the
years presented. Assets and liabilities denominated in other than the
functional currency are remeasured each month with the remeasurement gain or
loss recorded in other income.

F-36
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Net Income Per Share. Historical income per share is omitted from the
statements of operations because DLT & Storage Systems group stock was not part
of the capital structure of Quantum for the periods presented. Following the
implementation of the tracking stock proposal, the method of calculating income
per share for the DLT & Storage Systems group stock will reflect the terms of
the Restated Certificate of Incorporation and will be computed by dividing the
net income of the DLT & Storage Systems group by the weighted average number of
shares of DLT & Storage Systems group stock outstanding during the applicable
period. The effects of assuming issuance of DLT & Storage Systems group stock
on a pro forma basis under existing long-term incentive, stock option, and
stock purchase plans will be dilutive. Pro forma income per share,
reflecting the DLT & Storage Systems group stock to be issued under the
tracking stock proposal, is presented in the DLT & Storage Systems group's
statements of operations.

Cash Equivalents. Highly liquid debt instruments with a maturity of 90 days
or less at the time of purchase are considered to be cash equivalents. Cash
equivalents are carried at fair value, which approximates cost. Marketable
securities have maturities of more than 90 days at the time of purchase. Cash
equivalents and marketable securities have been classified as available-for-
sale. Securities classified as available-for-sale are carried at fair value
with material unrealized gains and losses reported in group equity. The cost of
debt securities is adjusted for amortization of premiums and accretion of
discounts to maturity. Such amortization is included in interest income.
Realized gains and losses and declines in value judged to be other-than-
temporary are recorded in other income or expense. The cost of securities sold
is based on the specific identification method.

Concentration of Credit Risk. Quantum performs ongoing credit evaluations of
its customers' financial condition and generally requires no collateral from
its customers. Reserves are maintained for potential credit losses and such
losses have historically been within management's expectations.

Quantum invests its excess cash in deposits with major banks and in money
market funds and short-term debt securities of companies with strong credit
ratings from a variety of industries. These securities generally mature within
365 days and, therefore, bear minimal risk. Quantum has not experienced any
material losses on its investments. Quantum, by corporate policy, limits the
amount of credit exposure to any one issuer and to any one type of investment.

Investments. Investments in entities (less-than-20-percent-owned companies)
that are not represented by marketable securities are carried at cost less
write-downs for declines in value that are judged to be other-than-temporary.
These valuation losses are recorded in other income when identified. Dividends
are recorded in other income when received.

Inventories. Inventories are carried at the lower of cost or market. Cost is
determined on a first-in, first-out basis.

Acquired Intangibles. Goodwill and other acquired intangible assets are
being amortized over their estimated useful lives, which range from two to
fifteen years. The accumulated amortization at March 31, 1998 and 1999 was $17
million and $13 million, respectively. Intangible assets are reviewed for
impairment whenever events or circumstances indicate impairment might exist, or
at least annually.

F-37
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Warranty Expense. The DLT & Storage Systems group generally warrants its
products against defects for a period of one to three years. A provision for
estimated future costs relating to warranty expense is recorded when products
are shipped and revenue recognized.

Advertising Expense. The DLT & Storage Systems group accrues for co-
operative advertising as the related revenue is earned, and other advertising
expense is recorded as incurred. Advertising expense for the years ended March
31, 1997, 1998 and 1999, was $11 million, $15 million, and $26 million,
respectively.

Stock-Based Compensation. The DLT & Storage Systems group accounts for its
stock-based employee compensation plans in accordance with the provisions of
Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees" and related Interpretations ("APB Opinion No. 25").

Risks and Uncertainties. As is typical in the information storage industry,
a significant portion of the DLT & Storage Systems group's customer base is
concentrated with a small number of OEMs, and the DLT & Storage Systems group
is not able to predict whether there will be any significant change in the
demand for its customers' products. The loss of any one of the DLT & Storage
Systems group's more significant customers could have a material adverse effect
on the DLT & Storage Systems group's results of operations. A limited number of
tape drive storage products make up a significant majority of the DLT & Storage
Systems group's sales, and due to increasingly rapid technological change in
the industry, the DLT & Storage Systems group's future depends on its ability
to develop and successfully introduce new products.

Note 2 Financial Instruments

Available-For-Sale Securities

Quantum's cash and cash equivalents, including certain available-for-sale
securities, are allocated between the DLT & Storage Systems group and the Hard
Disk Drive group. However, marketable securities have been allocated to the
Hard Disk Drive group.

F-38
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

The following is a summary of Quantum's consolidated available-for-sale
securities, all of which are classified as cash equivalents and marketable
securities:

The difference between the amortized cost of available-for-sale securities
and fair value was immaterial at March 31, 1998 and 1999, and therefore no
gross unrealized gains or losses were recorded in Quantum's stockholders'
equity. The estimated fair value of available-for-sale securities is based on
market quotations. There were no sales of available-for-sale securities in
fiscal years 1998 or 1999. At March 31, 1999, the average available-for-sale
portfolio duration was approximately 20 days, and no security had a maturity
longer than one year.

Derivative Financial Instruments

Foreign Exchange--Asset and Liability Management. During the periods covered
by the financial statements, Quantum utilized foreign currency forward exchange
contracts to manage the effects of foreign currency remeasurement arising from
certain assets and liabilities denominated in a foreign currency. The gains and
losses from market rate changes on these contracts, which are intended to
offset the losses and gains on certain foreign currency denominated assets and
liabilities, are recorded monthly in other income. Such gains and losses have
been immaterial to the DLT & Storage Systems group.

Carrying Amount and Fair Values of Financial Instruments

The estimated fair value of Quantum's borrowings (pooled debt) are
summarized as follows:

<TABLE>
<CAPTION>
March 31,
-------------------------------
1998 1999
--------------- ---------------
Carrying Fair Carrying Fair
Amount Value Amount Value
-------- ------ -------- ------
(In millions)
<S> <C> <C> <C> <C>
Convertible subordinated debt............. $287.5 $281.8 $287.5 $254.6
Revolving credit line..................... -- -- 18.0 18.0
Mortgage loan............................. 40.9 41.8 40.0 40.8
</TABLE>

F-39
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

on these borrowings are adjusted periodically to reflect market interest rates.
The fair values of the mortgage loan were based on the estimated present value
of the remaining payments, utilizing risk-adjusted market interest rates of
similar instruments at the balance sheet dates.

Note 3 Inventories

Inventories consisted of:

<TABLE>
<CAPTION>
March 31,
------------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
Materials and purchased parts......................... $ 51,578 $ 60,138
Work in process....................................... 29,687 22,154
Finished goods........................................ 21,763 42,170
-------- --------
$103,028 $124,462
======== ========

Note 4 Property, Plant, and Equipment

Property, plant, and equipment consisted of:

<CAPTION>
March 31,
------------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
Machinery and equipment............................... $ 57,084 $ 82,923
Furniture and fixtures................................ 4,088 7,556
Buildings and leasehold improvements.................. 24,302 36,151
Land.................................................. 674 1,122
-------- --------
86,148 127,752
Less accumulated depreciation and amortization........ (28,749) (54,630)
-------- --------
$ 57,399 $ 73,122
======== ========
</TABLE>

Note 5 Business Combination

On September 28, 1998, Quantum completed the acquisition of ATL. ATL
designs, manufactures, markets and services automated tape libraries for the
networked computer market. ATL's products incorporate DLTtape drives as well as
ATL's proprietary IntelliGrip automation technology. The acquisition has been
accounted for as a purchase with a total cost of $335 million. The acquisition
was completed with the issuance of 16.9 million shares of Quantum common stock
valued at $265 million on the date of acquisition in exchange for all
outstanding shares of ATL, the conversion of outstanding ATL stock options into
options valued at $22 million to purchase 1.8 million shares of Quantum common
stock and the assumption of $45 million of ATL liabilities. The DLT & Storage
Systems group also recognized deferred tax liabilities of $33 million. ATL's
results of operations are included in the financial statements from the date of
acquisition, and the assets and liabilities acquired were recorded based on
their fair values as of the date of acquisition.

F-40
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

use. Therefore, the DLT & Storage Systems group has expensed $89 million of the
purchase price as in-process research and development. The remaining
identifiable intangible assets will be amortized on a straight-line basis over
periods ranging from two to fifteen years.

The amount of the purchase price allocated to in-process research and
development was determined by estimating the stage of development of each in-
process research and development project at the date of acquisition, estimating
cash flows resulting from the expected revenue generated from such projects,
and discounting the net cash flows back to their present value using a discount
rate of 20%, which represents a premium to Quantum's cost of capital. The
expected revenue assumes an average compound annual revenue growth rate of 37%
during fiscal years 1999 to 2007. Expected total revenues from the purchased
in-process projects peak in fiscal year 2002 and then begin to decline as other
new products are expected to be introduced. These projections were based on
management's estimates of market size and growth, expected trends in technology
and the expected timing of new product introductions. If products are not
successfully developed, the DLT & Storage Systems group may not realize the
value assigned to the in-process research and development projects. In
addition, the value of the other acquired intangible assets may also become
impaired.

<TABLE>
<CAPTION>
Year Ended Year Ended
March 31, 1998 March 31, 1999
-------------- --------------
(In thousands)
<S> <C> <C>
Total revenue.................................. $1,250,802 $1,343,037
Net income .................................... $ 208,443 $ 202,363
</TABLE>

Note 6 Credit Agreements, Long-Term Debt and Convertible Subordinated Debt

Quantum's debt includes the following:

<TABLE>
<CAPTION>
March 31,
------------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
7% convertible subordinated notes...................... $287,500 $287,500
Revolving credit line, 6.0% average rate, payable
through June 2000..................................... -- 18,000
Mortgage............................................... 40,920 39,985
-------- --------
328,420 345,485
Less short-term portion of debt........................ 935 1,024
-------- --------
Total long-term debt and convertible subordinated
debt.................................................. $327,485 $344,461
======== ========
The DLT & Storage Systems group's portion of Quantum
debt:
Short-term debt........................................ $ 623 $ 683
Long-term debt and convertible subordinated debt,
excluding current portion............................. 218,324 229,641
-------- --------
The DLT & Storage Systems group total debt........... $218,947 $230,324
======== ========
The Hard Disk Drive group's portion of Quantum debt:
Short-term debt........................................ $ 312 $ 341
Long-term debt and convertible subordinated debt,
excluding current portion............................. 109,161 114,820
-------- --------
The Hard Disk Drive group total debt................. $109,473 $115,161
======== ========
Weighted average interest rate on Quantum's debt at
period-end............................................ 7.39% 7.31%
</TABLE>

F-41
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

In June 1997, Quantum entered into an unsecured senior credit facility that
provides a $500 million revolving credit line and expires in June 2000. At the
option of Quantum, borrowings under the revolving credit line bear interest at
either LIBOR plus a margin determined by a total funded debt ratio, or a base
rate, with option periods of one to six months. As of March 31, 1998 and March
31, 1999, there was no outstanding balance drawn on this line.

In July 1997, Quantum issued $288 million of 7% convertible subordinated
notes. The notes mature on August 1, 2004, and are convertible at the option of
the holder at any time prior to maturity, unless previously redeemed, into
shares of Quantum common stock at a conversion price of $46.325 per share. The
notes are redeemable at Quantum's option on or after August 1, 1999, and prior
to August 1, 2001, under certain conditions related to the price of Quantum
common stock. Subsequent to August 1, 2001, the notes are redeemable at
Quantum's option at any time. In the event of certain changes involving all or
substantially all of Quantum common stock, the notes would become redeemable at
the option of the holder. Redemption prices range from 107% of the principal to
100% at maturity. The notes are unsecured obligations subordinated in right of
payment to all existing and future senior indebtedness of Quantum.

If the tracking stock proposal is implemented, each of the 7% subordinated
notes, which currently are convertible into shares of Quantum common stock,
will become convertible into a number of shares of DLT & Storage Systems group
stock and a number of shares of Hard Disk Drive group stock equal to the
numbers of such shares which the holder of such note would receive under the
tracking stock proposal had such note been converted immediately prior to the
implementation of the tracking stock proposal. The notes will not be separately
convertible into solely DLT & Storage Systems group stock or solely Hard Disk
Drive group stock. The exercise price and maturity date of each convertible
note will not be affected by the implementation of the tracking stock proposal.

In September 1996, Quantum entered into a $42 million mortgage related to
certain domestic facilities at an effective interest rate of approximately
10.1%. The term of the mortgage is 10 years, with monthly payments based on a
20-year amortization period, and a balloon payment at the end of the 10-year
term. The debt is secured by specified real estate.

Payments required on Quantum's long-term debt outstanding at March 31, 1999,
are $1.0 million in fiscal year 2000, $1.1 million in fiscal year 2001, $1.2
million in fiscal year 2002, $1.3 million in fiscal year 2003 and $1.5 million
in fiscal year 2004.

In December 1998, ATL entered into a senior credit facility that provides a
$35 million revolving credit line to ATL. The revolving credit line is co-
terminous with Quantum's $500 million revolving credit line, expiring in June
2000. At the option of ATL, borrowings under the revolving credit line bear
interest at either LIBOR plus a margin determined by a total funded debt ratio
of Quantum, or a base rate, with option periods of one to six months. At March
31, 1999, $18 million was outstanding on ATL's revolving credit line.

Note 7 Redeemable Preferred Stock

In fiscal year 1998, the holder of the 90,000 shares of Redeemable
Convertible Participating Series B Preferred Stock exercised its right to
convert the shares to Quantum common stock. Quantum issued 180,000 shares of
Quantum common stock pursuant to the conversion.

Note 8 Stock Incentive Plans

F-42
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

awards (collectively referred to as "options") to employees, consultants,
officers and affiliates of Quantum. The Plan has available and reserved for
future issuance 19.2 million shares and allows for an annual increase in the
number of shares available for issuance, subject to a limitation. Available for
grant as of March 31, 1999, were 529,000 shares. Options under the Plan expire
no later than ten years from the grant date and generally vest over four years.
Restricted stock granted under the Plan generally vests over two to three
years. In fiscal years 1997, 1998 and 1999, Quantum recorded compensation
expense of $1,916,000, $3,179,000 and $3,211,000, respectively, related to
restricted stock granted pursuant to stock purchase rights under the Plan, a
portion of which was allocated to the DLT & Storage Systems group. The number
of shares of restricted stock granted under the Plan were 354,290 shares,
65,500 shares, and 157,200 shares, in fiscal years 1997, 1998 and 1999,
respectively, at an exercise price of $.01.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, each share of restricted stock currently held will be
changed into one share of DLT & Storage Systems group stock and 0.5 of a share
of Hard Disk Drive group stock.

Stock Option Plans. Quantum has Stock Option Plans (the "Plans") under which
5.1 million shares of Quantum common stock was reserved for future issuance at
March 31, 1999 to employees, officers and directors of Quantum. Options under
the Plans are granted at prices determined by the Board, but at not less than
the fair market value, and accordingly no compensation accounting has been
required at the original date of grant. Options currently expire no later than
ten years from the grant date and generally vest ratably over one to four
years. At March 31, 1999, options with respect to 470,000 shares of Quantum
common stock were available for grant.

Stock Option Summary Information. A summary of activity relating to
Quantum's Long-Term Incentive Plan and the Stock Option Plans follows:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------------------------------------------
1997 1998 1999
---------------------- ---------------------- ----------------------
Shares Weighted-Avg. Shares Weighted-Avg. Shares Weighted-Avg.
(000s) Exercise Price (000s) Exercise Price (000s) Exercise Price
------ -------------- ------ -------------- ------ --------------
<S> <C> <C> <C> <C> <C> <C>
Outstanding at beginning
of period.............. 16,746 $6.75 16,354 $ 7.52 17,005 $12.09
Granted................. 5,850 $8.59 6,163 $19.80 10,781 $21.51
Canceled................ (1,564) $7.94 (718) $14.11 (1,880) $22.63
Exercised............... (4,678) $5.97 (4,794) $ 6.10 (2,530) $ 7.23
------ ------ ------
Outstanding at end of
period................. 16,354 $7.52 17,005 $12.09 23,376 $14.68
====== ====== ======
Exercisable at end of
period................. 8,514 $6.53 8,332 $ 8.84 11,786 $10.65
====== ====== ======
</TABLE>

The range of exercise prices for options outstanding at March 31, 1999 was
$2.17 to $30.81. Quantum recorded compensation expense of $475,000, $1,057,000
and $2,188,000 was recorded in fiscal years 1997, 1998 and 1999, respectively,
on accelerated stock options under the Plans, a portion of such expense was
allocated to the DLT & Storage Systems group.

F-43
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

The following tables summarize information about Quantum's options
outstanding at March 31, 1999:

<TABLE>
<CAPTION>
Outstanding Options
------------------------------------------------------
Shares Outstanding Weighted-Average
at March 31, 1999 Remaining Weighted-Average
Range of Exercise Prices (000s) Contractual Life Exercise Price
------------------------ ------------------ ---------------- ----------------
<C> <C> <S> <C>
$ 2.17 -- $ 8.75 7,842 6.09 $ 6.23
$ 8.78 -- $19.81 7,816 7.88 $15.37
$20.19 -- $30.81 7,718 9.28 $22.56
------
23,376 7.74 $14.68
======
</TABLE>

<TABLE>
<CAPTION>
Options Exercisable
---------------------------------------------
Shares
Exercisable at
March 31, 1999 Weighted-Average
Range of Exercise Prices (000s) Exercise Price
------------------------ -------------- ----------------
<C> <S> <C>
$ 2.17 -- $ 8.75 6,576 $ 6.24
$ 8.78 -- $19.81 4,095 $14.28
$20.19 -- $30.81 1,115 $23.30
------
11,786 $10.65
======
</TABLE>

Completing the acquisition of ATL included the conversion of outstanding
ATL stock options into options to purchase 1.8 million shares of Quantum
common stock. These options relate to Quantum's assumption of ATL's 1996 Stock
Incentive Plan and 1997 Stock Incentive Plan, collectively referred to as the
"ATL Plans." Under the terms of the ATL Plans, eligible key employees,
directors and consultants received options to purchase shares of ATL's
previously outstanding common stock at prices not less than 100% for incentive
stock options and not less than 85% for nonqualified stock options of the fair
value on the date of grant as determined by ATL's Board of Directors. Options
under ATL Plans vest over a three year period and expire ten years after date
of grant or 90 days after termination of employment. Subsequent to completing
the acquisition of ATL, no additional grants may be made from the ATL Plans.
See Note 5 for more information on the acquisition of ATL.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, each outstanding stock option under Quantum's stock
option plans will be converted into separately exercisable options to acquire
one share of DLT & Storage Systems group stock and 0.5 of a share of Hard Disk
Drive group stock. The exercise price for the resulting DLT & Storage Systems
group stock options and Hard Disk Drive group stock options will be calculated
by multiplying the exercise price under the original option from which they
were converted by a fraction, the numerator of which is the opening price of
DLT & Storage Systems group stock or Hard Disk Drive group stock, as the case
may be, on the first date such stock are traded on New York Stock Exchange and
the denominator of which is the sum of such DLT & Storage Systems group stock
and Hard Disk Drive group stock prices. This is intended to ensure that the
aggregate intrinsic value of the options will be preserved, and the ratio of
the exercise price per option to the market value per share will not be
reduced. In addition, the vesting provision and option periods of the original
grants will remain the same when converted.

F-44
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

shares authorized to be issued under the plan, 1,366,000 shares were available
for issuance at March 31, 1999. Quantum's employees purchased 3,216,000 shares,
3,454,000 shares, and 2,555,000 shares under the Purchase Plan in fiscal years
1997, 1998, and 1999, respectively. The weighted average exercise price of
stock purchased under the Purchase Plan was $5.41, $6.22 and $9.41 in fiscal
years 1997, 1998, and 1999, respectively.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, the terms of the Purchase Plan will be adjusted to
allow Quantum's employees to purchase one share of DLT & Storage Systems group
stock and 0.5 of a share of Hard Disk Drive group stock for each share of
Quantum common stock.

Other. The DLT & Storage Systems group adopted SFAS No. 123, "Accounting for
Stock-Based Compensation" in fiscal year 1997. The DLT & Storage Systems group
has elected to continue to account for its stock-based compensation plans under
Accounting Principles Board ("APB") Opinion No. 25 and disclose the pro forma
effects of the plans on net income and earnings per share as provided by SFAS
No. 123. Accordingly, no compensation expense has been recognized for the stock
option plans and the employee stock purchase plans as all options have been
issued at fair market value. Since DLT & Storage Systems group stock was not
part of the capital structure of Quantum for the periods presented, there were
no stock options outstanding. Therefore, the pro forma effect of DLT & Storage
Systems group stock options on the accompanying combined financial statements
is not presented.

Note 9 Common Stock and Stockholder Rights Plan

The DLT & Storage Systems group stock will represent a separate class of
Quantum's stock if the tracking stock proposal is approved. Additional shares
of DLT & Storage Systems group stock may be issued from time to time upon
exercise of stock options or at the discretion of Quantum's Board.

Quantum has a stockholder rights plan (the "Rights Plan") that provides
existing stockholders with the right to purchase 1/1000 preferred share for
each common share held in the event of certain changes in Quantum's ownership.
Subject to certain exceptions, if any person or group becomes the beneficial
owner of 20% or more of the outstanding common stock each right will entitle
its holder to purchase 1/1,000 preferred share or, under certain circumstances,
shares of common stock with a market value twice the exercise price of the
right. The Rights Plan may serve as a deterrent to takeover tactics that are
not in the best interests of stockholders. There are 1,000,000 preferred shares
reserved for issuance under the Rights Plan.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, the Rights Agreement will be amended and restated
(the "Restated Rights Agreement") to, among other things, (i) reflect the new
equity structure of Quantum and (ii) reset the prices at which rights issued
pursuant thereto may be exercised into units of Junior Preferred Stock.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, as of the date on which the DLT & Storage Systems
group stock and the Hard Disk Drive group stock is issued under the tracking
stock proposal, the Board will by resolution (i) reduce the authorized number
of shares of Series A Junior Preferred Stock to zero, (ii) designate a new
series of Junior Preferred Stock as the Series B Junior Preferred Stock, (iii)
designate another new series of Junior Preferred Stock as the Series C Junior
Preferred Stock, (iv) exchange for each existing Right (A) one right with
respect to each share of DLT & Storage Systems group stock (a "DLT & Storage
Systems group right") which will entitle the holders thereof to purchase shares
of Series B Junior Preferred Stock under the conditions specified in the
Restated Rights Agreement, and (B) one right with respect to each share of Hard
Disk Drive group stock (a "Hard Disk

F-45
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Drive group right"), which will entitle the holders thereof to purchase shares
of Series C Junior Preferred Stock under the conditions specified in the
Restated Rights Agreement. The DLT & Storage Systems group rights and the Hard
Disk Drive group rights are herein collectively referred to as the "rights."

The rights will expire on August 4, 2008, unless earlier redeemed by Quantum
or extended. The rights would be exercisable only if a person or group acquires
(i) 20% or more of the then outstanding shares of DLT & Storage Systems group
stock or (ii) 20% of the then outstanding shares of Hard Disk Drive group
stock, or commences a tender offer that would result in such person or group
beneficially owning such number of shares. In such event and subject to certain
exceptions, each right would entitle the holder to purchase from Quantum (i) in
the case of a DLT & Storage Systems group right, 1/1000 of a share of Series B
Junior Preferred Stock (a "Series B Unit") at a purchase price to be determined
by the Board, subject to adjustment or, under certain circumstances, shares of
DLT & Storage Systems group stock with a market value twice the exercise price
of the DLT & Storage Systems group right and (ii) in the case of a Hard Disk
Drive group right, 1/1000 of a share of Series C Junior Preferred Stock (a
"Series C Unit") at a purchase price to be determined by the Board, subject to
adjustment or, under certain circumstances, shares of Hard Disk Drive group
stock with a market value twice the exercise price of the Hard Disk Drive group
right.

Note 10 Savings and Investment Plan

Substantially all of the regular domestic employees are eligible to make
contributions to Quantum's 401(k) savings and investment plan. Quantum matches
a percentage of the employees' contributions and may also make additional
discretionary contributions to the plan. Quantum contributions were $5 million,
$6 million and $7 million in fiscal years 1997, 1998 and 1999, respectively.

Note 11 Income Taxes

The income tax provision consists of the following:

<TABLE>
<CAPTION>
Year Ended March 31,
---------------------------
1997 1998 1999
------- -------- --------
(In thousands)
<C> <S> <C> <C> <C>
Federal: Current............................ $74,323 $125,930 $110,509
Deferred........................... (15,235) (8,634) 5,710
------- -------- --------
59,088 117,296 116,219
------- -------- --------
State: Current............................ 15,138 28,404 27,430
Deferred........................... (2,586) (2,705) (2,322)
------- -------- --------
12,552 25,699 25,108
------- -------- --------
Income tax provision......................... $71,640 $142,995 $141,327
======= ======== ========
</TABLE>

The tax benefits associated with nonqualified stock options, disqualifying
dispositions of incentive stock options, and employee stock purchase plan
shares reduced taxes currently payable as shown above by $7 million, $14
million, and $11 million in fiscal years 1997, 1998 and 1999, respectively.
Such benefits are credited to group equity when realized.

F-46
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

The DLT & Storage Systems group's income tax provision differs from the
amount computed by applying the federal statutory rate or 35% to income before
income taxes as follows:

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------
1997 1998 1999
------- -------- --------
(In thousands)
<S> <C> <C> <C>
Tax at federal statutory rate................ $62,685 $128,329 $ 92,511
State income tax, net of federal benefit..... 8,159 16,705 16,320
Research and development credit.............. -- (1,690) (634)
Acquired ATL in-process research and
development................................. -- -- 31,150
Other items.................................. 796 (349) 1,980
------- -------- --------
$71,640 $142,995 $141,327
======= ======== ========
</TABLE>

Significant components of deferred tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
Year Ended March 31,
----------------------
1998 1999
---------- ----------
(In thousands)
<S> <C> <C>
Deferred tax assets:
Inventory valuation methods.................... $ 17,796 $ 16,093
Accrued warranty expense....................... 15,008 5,289
Allowance for doubtful accounts................ 1,165 946
Distribution reserves.......................... 615 3,578
Other accruals and reserves not currently
deductible for tax purposes................... 9,890 10,527
Depreciation methods........................... 193 5,730
Amortization methods........................... 1,891 1,241
---------- ----------
46,588 43,404
---------- ----------
Acquired ATL intangibles......................... -- (33,602)
Other............................................ (2,884) (1,563)
---------- ----------
Deferred tax liabilities......................... (2,884) (35,165)
---------- ----------
Net deferred tax asset........................... $ 43,674 $ 8,239
========== ==========
</TABLE>

Quantum's federal income tax returns have been examined by the Internal
Revenue Service (IRS) for all years through 1993. All issues have been resolved
with no material effect, and the IRS has closed those years. Quantum's federal
income tax returns for the years 1995-1996 are presently under examination by
the IRS. Management believes sufficient accruals have been provided in prior
years for any adjustments that may result for the years under examination.

Note 12 Commitments

Quantum leases certain facilities for the DLT & Storage Systems group's use
under non-cancelable operating lease agreements for periods of up to 15 years.
Some of the leases have renewal options ranging from one to ten years and
contain provisions for maintenance, taxes, or insurance.

F-47
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

The DLT & Storage Systems group's rent expense was $5 million, $6 million,
and $10 million for the fiscal years ended March 31, 1997, 1998, and 1999,
respectively.

Future minimum lease payments under operating leases are as follows:

<TABLE>
<CAPTION>
Year ended March 31, (In thousands)
<S> <C>
2000...................................................... $ 5,360
2001...................................................... 4,936
2002...................................................... 5,470
2003...................................................... 4,708
2004...................................................... 4,003
Thereafter................................................ 16,081
-------
Total future minimum lease payments....................... $40,558
=======
</TABLE>

Note 13 Business and Geographic Information

One customer accounted for 10% or more of combined revenue in fiscal years
1997, 1998 and 1999. Revenue from this customer represented $253 million, $433
million and $329 million of the DLT & Storage Systems group's combined revenue
in the respective periods. Another customer accounted for 10% or more of
combined revenue in fiscal years 1997, 1998 and 1999. Revenue from this
customer represented $100 million, $133 million and $171 million of the DLT &
Storage Systems group's combined revenue in the respective periods.

Product Information

Revenue is composed of the following:

<TABLE>
<CAPTION>
Year Ended March
31,
------------------
1997 1998 1999
---- ------ ------
(In millions)
<S> <C> <C> <C>
DLTtape drives......................................... $392 $ 784 $ 872
DLTtape media cartridge products....................... 221 284 195
DLTtape media cartridge royalties...................... 8 27 122
Tape libraries and service............................. 96 87 148
Solid state storage systems............................ 11 8 6
Intra-group elimination................................ -- -- (40)
---- ------ ------
Total.................................................. $728 $1,190 $1,303
==== ====== ======
</TABLE>

Geographic Information

Revenue and long-lived assets by region are as follows (revenue is
attributed to regions based on the location of customers):

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------------------------------
1997 1998 1999
------------------ ------------------ ------------------
Long-Lived Long-Lived Long-lived
Revenue Assets Revenue Assets Revenue assets
------- ---------- ------- ---------- ------- ----------
(In millions)
<S> <C> <C> <C> <C> <C> <C>
United States......... $554 $45 $ 934 $71 $ 922 $291
United Kingdom........ 74 -- 149 -- 188 --
Rest of Europe........ 87 -- 83 -- 134 1
Asia Pacific.......... 13 1 24 1 59 1
---- --- ------ --- ------ ----
Total............... $728 $46 $1,190 $72 $1,303 $293
==== === ====== === ====== ====
</TABLE>

F-48
<PAGE>

DLT & STORAGE SYSTEMS GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Note 14 Unaudited Quarterly Combined Financial Data

<TABLE>
<CAPTION>
Fiscal Year 1999
------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ------------ -----------
(In thousands)
<S> <C> <C> <C> <C>
Total revenue............. $255,702 $290,458 $366,495 $390,081
Gross profit.............. 113,674 131,675 161,301 173,269
Net income (loss)......... 43,565 52,143 (30,584) 57,867
<CAPTION>
Fiscal Year 1998
------------------------------------------------
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter
----------- ----------- ------------ -----------
(In thousands)
<S> <C> <C> <C> <C>
Total revenue............. $265,005 $338,523 $330,279 $255,993
Gross profit.............. 106,061 138,008 147,537 110,608
Net income................ 49,666 64,726 66,064 43,203
</TABLE>

The results of operations for the third quarter of fiscal year 1999 included
the effect of an $89 million charge related to purchased in-process research
and development related to the acquisition of ATL.

The results of operations for the fourth quarter of fiscal year 1998 were
impacted by the reduction in estimated bonus accrued earlier in the fiscal
year.

F-49
<PAGE>

REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

To the Board of Directors and Stockholders of Quantum Corporation

We have audited the accompanying combined balance sheets of the Hard Disk
Drive group (as described in Note 1) of Quantum Corporation as of March 31,1998
and 1999 and the related combined statements of operations, group equity, and
cash flows for each of the three years in the period ended March 31, 1999.
These financial statements are the responsibility of Quantum Corporation's
management. Our responsibility is to express an opinion on these financial
statements based on our audits. We did not audit the consolidated financial
statements of MKE-Quantum Components LLC ("MKQC"), a forty-nine percent equity
investee of the Hard Disk Drive group, which statements reflect a net loss of
$134.8 million for the period from May 16, 1997 (inception) through March 31,
1998. Those statements were audited by other auditors whose report has been
furnished to us, and our opinion, insofar as it relates to data included for
MKQC, is based solely on the report of the other auditors.

In our opinion, based on our audits and the report of other auditors, the
financial statements referred to above present fairly, in all material
respects, the financial position of the Hard Disk Drive group at March 31, 1998
and 1999 and the results of its operations and its cash flows for each of the
three years in the period ended March 31, 1999, in conformity with generally
accepted accounting principles.

As more fully described in Note 1 to these financial statements, the Hard
Disk Drive group is a business group of Quantum Corporation; accordingly, the
combined financial statements of the Hard Disk Drive group should be read in
conjunction with the audited consolidated financial statements of Quantum
Corporation.

/s/ Ernst & Young LLP

Palo Alto, California
April 26, 1999

F-50
<PAGE>

HARD DISK DRIVE GROUP

COMBINED STATEMENTS OF OPERATIONS
(In thousands, except per share data)

Gross profit............................... 498,402 373,307 291,419

Operating expenses:
Research and development................. 261,293 258,916 253,893
Sales and marketing...................... 125,601 121,787 114,389
General and administrative............... 75,037 67,001 55,592
---------- ---------- ----------
461,931 447,704 423,874
---------- ---------- ----------

Income (loss) from operations.............. 36,471 (74,397) (132,455)
Interest income and other, net............. 4,660 15,536 19,161
Interest expense........................... (19,535) (10,918) (9,159)
Loss from investee......................... -- (66,060) (142,050)
---------- ---------- ----------

Income (loss) before income taxes.......... 21,596 (135,839) (264,503)
Income tax benefit......................... (19,459) (82,981) (111,977)
---------- ---------- ----------

Net income (loss).......................... $ 41,055 $ (52,858) $ (152,526)
========== ========== ==========

Pro forma net loss per share:
Basic.................................... $ (1.90)
==========
Diluted.................................. $ (1.90)
==========

Pro forma weighted-average common shares:
Basic.................................... 80,335
==========
Diluted.................................. 80,335
==========
</TABLE>

See accompanying notes to combined financial statements.

F-51
<PAGE>

HARD DISK DRIVE GROUP

COMBINED BALANCE SHEETS
(In thousands)

<TABLE>
<CAPTION>
March 31,
---------------------
1998 1999
---------- ----------
<S> <C> <C>
Assets
Current assets:
Cash and cash equivalents.............................. $ 253,240 $ 499,725
Marketable securities.................................. 71,573 24,426
Accounts receivable, net of allowance for doubtful
accounts of $10,342 and $9,623 respectively........... 585,848 392,329
Inventories............................................ 212,007 147,524
Deferred taxes......................................... 90,162 72,107
Other current assets................................... 118,087 96,401
---------- ----------
Total current assets.................................... 1,330,917 1,232,512

Property, plant, and equipment, less accumulated
depreciation........................................... 227,760 198,806
Intangible assets, less accumulated amortization........ 9,124 5,199
Other assets............................................ 78,539 33,436
---------- ----------
$1,646,340 $1,469,953
========== ==========

Liabilities and Group Equity
Current liabilities:
Accounts payable....................................... $ 401,324 $ 342,344
Accrued warranty....................................... 40,239 38,917
Accrued compensation................................... 44,359 51,048
Income taxes payable................................... 39,777 33,411
Current portion of long-term debt...................... 312 341
Other accrued liabilities.............................. 66,199 57,841
---------- ----------
Total current liabilities............................... 592,210 523,902

Deferred taxes.......................................... 38,523 39,985
Long-term debt.......................................... 13,328 18,987
Convertible subordinated debt........................... 95,833 95,833
Commitments and contingencies...........................
Group equity............................................ 906,446 791,246
---------- ----------
$1,646,340 $1,469,953
========== ==========
</TABLE>

See accompanying notes to combined financial statements.

F-52
<PAGE>

HARD DISK DRIVE GROUP

COMBINED STATEMENTS OF CASH FLOWS
(In thousands)

Cash flows from investing activities:
Purchases of marketable securities........... -- (71,573) (78,145)
Maturities of marketable securities.......... -- -- 125,292
Purchases of equity securities/minority
interest.................................... (3,400) -- --
Acquisition of intangible assets............. -- (9,850) --
Proceeds from sale of interest in recording
heads operations............................ -- 94,000 --
Investment in property and equipment......... (163,534) (119,066) (82,486)
Proceeds from disposition of property and
equipment................................... 9,665 5,962 140
Proceeds from repayment of note receivable... -- 18,000 --
--------- --------- ---------
Net cash used in investing activities......... (157,269) (82,527) (35,199)
--------- --------- ---------

Cash flows from financing activities:
Proceeds from long-term credit facilities.... 110,030 -- 8,333
Inter-group proceeds for common stock
issued...................................... -- -- 15,118
Proceeds from mortgage loan.................. 14,035 -- --
Principal payments on long-term credit
facilities.................................. (126,113) (60,326) (2,645)
Proceeds from issuance of common stock....... 15,087 16,787 14,094
Proceeds from issuance of convertible
subordinated notes.......................... -- 95,833 --
--------- --------- ---------
Net cash provided by financing activities..... 13,039 52,294 34,900
--------- --------- ---------
Increase in cash and cash equivalents......... 75,967 51,461 246,485
Cash and cash equivalents at beginning of
period....................................... 125,812 201,779 253,240
--------- --------- ---------
Cash and cash equivalents at end of period.... $ 201,779 $ 253,240 $ 499,725
========= ========= =========
Supplemental disclosure of cash flow
information:
Conversion of debentures to common stock..... $ 132,893 $ 80,450 --
========= ========= =========
Note received on disposition of property and
equipment................................... $ 18,000 -- --
========= ========= =========
Issuance of redeemable preferred stock as
part of minority
interest acquisition......................... $ 1,296 -- --
========= ========= =========
Conversion of redeemable preferred stock to
common stock................................ -- $ 1,296 --
========= ========= =========
Cash paid during the year for:
Interest..................................... $ 21,318 $ 9,677 $ 8,908
========= ========= =========
Income taxes................................. $ 7,621 $ 17,868 $ 21,864
========= ========= =========
</TABLE>

See accompanying notes to combined financial statements.

F-53
<PAGE>

HARD DISK DRIVE GROUP

COMBINED STATEMENTS OF GROUP EQUITY
(In thousands)

<TABLE>
<CAPTION>
Accumulated
Other
Retained Comprehensive Group
Other Earnings Income (Loss) Equity
-------- --------- ------------- ---------
<S> <C> <C> <C> <C>
Balances at March 31, 1996........ $419,423 $ 242,997 $ -- $ 662,420
Net income........................ -- 41,055 -- 41,055
Conversion of subordinated
debentures....................... 131,264 -- -- 131,264
Shares issued under employee stock
purchase plan.................... 5,801 -- -- 5,801
Shares issued under employee stock
option plans, net................ 9,286 -- -- 9,286
Compensation expense and other.... 1,766 -- -- 1,766
Tax benefits related to stock
option plans..................... 3,677 -- -- 3,677
-------- --------- ------- ---------
Balances at March 31, 1997........ 571,217 284,052 -- 855,269
Comprehensive loss:
Net loss.......................... -- (52,858) -- (52,858)
Other comprehensive loss--foreign
currency translation
adjustments...................... -- -- (1,462) (1,462)
---------
Comprehensive loss................ -- -- -- (54,320)
Conversion of subordinated
debentures....................... 78,907 -- -- 78,907
Conversion of Series B preferred
shares........................... 1,296 -- -- 1,296
Shares issued under employee stock
purchase plan.................... 7,159 -- -- 7,159
Shares issued under employee stock
option plans, net................ 9,628 -- -- 9,628
Compensation expense and other.... 1,412 -- -- 1,412
Tax benefits related to stock
option plans..................... 7,095 -- -- 7,095
-------- --------- ------- ---------
Balances at March 31, 1998........ 676,714 231,194 (1,462) 906,446
Comprehensive loss:
Net loss......................... -- (152,526) -- (152,526)
Other comprehensive income--
foreign currency translation
adjustments..................... -- -- 612 612
---------
Comprehensive loss................ -- -- -- (151,914)
Shares issued under employee stock
purchase plan.................... 8,013 -- -- 8,013
Shares issued under employee stock
option plans, net................ 6,081 -- -- 6,081
New shares issued for ATL
acquisition...................... 7,662 -- -- 7,662
Conversion of ATL stock options... 7,456 -- -- 7,456
Compensation expense and other.... 1,879 -- -- 1,879
Tax benefits related to stock
option plans..................... 5,623 -- -- 5,623
-------- --------- ------- ---------
Balances at March 31, 1999........ $713,428 $ 78,668 $ (850) $ 791,246
======== ========= ======= =========
</TABLE>

See accompanying notes to combined financial statements.

F-54
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS

The accompanying combined financial statements should be read in conjunction
with the consolidated financial statements of Quantum Corporation ("Quantum").

Note 1 Summary of Significant Accounting Policies

Nature of Business. Quantum operates its business through two separate
groups: the Hard Disk Drive group and the DLT & Storage Systems group as
described below. The Hard Disk Drive group and the DLT & Storage Systems group
are referred to as the "groups."

The Board of Directors (the "Board") of Quantum has recommended stockholder
approval of a proposal that would create two classes of tracking stock intended
to reflect separately the performance of the Hard Disk Drive group and the DLT
& Storage Systems group. Under the tracking stock proposal, Quantum's
Certificate of Incorporation would be amended and restated (the "Restated
Certificate of Incorporation") to (i) designate a new class of Quantum
Corporation--the Hard Disk Drive group Common Stock, $.01 par value per share,
(ii) designate a new class of Quantum Corporation--DSSG Common Stock, $.01 par
value per share, and (iii) reclassify each authorized share of existing common
stock, $.01 par value per share as one-half share of Hard Disk Drive group
stock and one share of DLT & Storage Systems group stock.

The combined financial statements of the groups comprise all of the accounts
included in the corresponding consolidated financial statements of Quantum. The
separate group combined financial statements give effect to the accounting
policies that will be applicable upon implementation of the tracking stock
proposal. The separate the Hard Disk Drive group and the DLT & Storage Systems
group financial statements have been prepared on a basis that management
believes to be reasonable and appropriate and include (i) the historical
balance sheets, results of operations, and cash flows of businesses that
comprise each of the groups, with all significant intragroup transactions and
balances eliminated, (ii) in the case of the Hard Disk Drive group's financial
statements, corporate assets and liabilities of Quantum and related
transactions identified with the Hard Disk Drive group, including allocated
portions of Quantum's debt and selling, general and administrative costs, and
(iii) in the case of the DLT & Storage Systems group's financial statements,
corporate assets and liabilities of Quantum and related transactions identified
with the DLT & Storage Systems group, including allocated portions of Quantum's
debt and selling, general and administrative costs.

Holders of the Hard Disk Drive group stock and DLT & Storage Systems group
stock will be stockholders of a single company. The Hard Disk Drive group and
the DLT & Storage Systems group are not separate legal entities. As a result,
stockholders will continue to be subject to all of the risks of an investment
in Quantum and all of Quantum's business, assets and liabilities. The issuance
of Hard Disk Drive group stock and DLT & Storage Systems group stock and the
allocation of assets or liabilities and stockholders' equity between the Hard
Disk Drive group and the DLT & Storage Systems group will not result in a
distribution or spin-off to stockholders of any of Quantum's assets or
liabilities and will not affect ownership of any of Quantum's assets or
responsibility for Quantum's liabilities or those of Quantum's subsidiaries.
The assets Quantum attributes to one group could be subject to the liabilities
of the other group. If Quantum is unable to satisfy one group's liabilities out
of the assets attributed to it, Quantum may be required to satisfy those
liabilities with assets Quantum has

F-55
<PAGE>

QUANTUM CORPORATION--HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

attributed to the other group. Holders of Hard Disk Drive group stock and DLT &
Storage Systems group stock generally will not have stockholder rights specific
to their corresponding group. Instead, holders have customary rights relating
to Quantum as a whole. Holders of tracking stock will not have any rights
related to their corresponding group except as set forth in provisions relating
to dividend rights and requirements for a mandatory dividend, redemption or
conversion upon the disposition of all or substantially all of the assets of
their corresponding group, or have any right to vote on matters as a separate
voting group other than in limited circumstances as provided under Delaware law
or by New York Stock Exchange rules. The relative voting power of Hard Disk
Drive group stock and DLT & Storage Systems group stock will fluctuate from
time to time, with each share of DLT & Storage Systems group stock having one
vote and each share of Hard Disk Drive group stock having a number of votes,
based upon the ratio, over a specified period, of the average market values of
one share of Hard Disk Drive group stock and of one share of DLT & Storage
Systems group stock. This formula is intended to give each class of tracking
stock a number of votes proportionate to its aggregate market capitalization at
the time of any vote. Accordingly, changes in the market value of Hard Disk
Drive group stock and DLT & Storage Systems group stock will affect the
relative voting rights of a class of tracking stock. It is expected that
initially the holders of DLT & Storage Systems group stock will have a
substantial majority of the voting power of Quantum.

Financial effects arising from one group that affect Quantum's consolidated
results of operations or financial condition could, if significant, affect the
results of operations or financial condition of the other group and the market
price of the class of tracking stock relating to the other group. Any net
losses of the Hard Disk Drive group or the DLT & Storage Systems group and
dividends or distributions on, or repurchases of, Hard Disk Drive group stock
or DLT & Storage Systems group stock, or repurchases of preferred stock at a
price per share greater than par value, will reduce the funds of Quantum
legally available for payment of dividends on the Hard Disk Drive group stock.

The Board may at any time, in its sole discretion and without stockholder
approval, determine to convert the tracking stock related to one group into the
tracking stock related to the other group at a 10% premium during the first
five years following the implementation of the tracking stock proposal and
without any premium thereafter. The Board may also effect such a conversion at
no premium if, based on the legal opinion of Quantum's tax counsel, it is more
likely than not that for United States federal income tax purposes (i) Quantum
or its stockholders are, or at any time in the future will be, subject to tax
upon the issuance of shares of either Hard Disk Drive group stock or DLT &
Storage Systems group stock, or (ii) either Hard Disk Drive group stock or DLT
& Storage Systems group stock is not, or at any time in the future will not be,
treated as stock of Quantum. In the case of certain dispositions of all or
substantially all of the assets of one group, the Board may determine to
convert the tracking stock of such group into the tracking stock of the other
group at a 10% premium during the first five years following the implementation
of the tracking stock proposal and without any premium thereafter. Any
conversion at a premium would dilute the interests in Quantum of the holders of
the class of tracking stock being issued in the conversion. In addition, any
conversion of a class of tracking stock into another class of tracking stock
would preclude holders of both classes of tracking stock from retaining their
investment in a security that is intended to reflect separately the performance
of the relevant group.

The Hard Disk Drive group's combined financial statements reflect the
application of the management and allocation policies adopted by the Board to
various corporate activities, as described below.

F-56
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Financing Activities. Quantum manages most financial activities of the Hard
Disk Drive group and the DLT & Storage Systems group on a centralized basis.
Such financial activities include the investment of surplus cash, the issuance
and repayment of short-term and long-term debt, the issuance and repurchase of
common stock, and the issuance and repurchase of any preferred stock.

At March 31, 1999, $115 million of Quantum's debt was allocated to the Hard
Disk Drive group and $230 million was allocated to the DLT & Storage Systems
group. The Board has adopted the following financing policy that will affect
the combined statements of the Hard Disk Drive group and the DLT & Storage
Systems group: Quantum will allocate its debt between the groups ("pooled
debt") or, if Quantum so determines, in its entirety to a particular group.
Quantum will allocate preferred stock, if issued, in a similar manner.

Debt for a particular financing allocated in its entirety to one group,
bears interest for group financial statement purposes at the rate determined by
the Board. For preferred stock allocated in its entirety to one group the
dividend cost to that group is determined in a similar manner. If the interest
or dividend cost is higher than Quantum's actual cost, the other group receives
a credit for an amount equal to the difference as compensation for the use of
Quantum's credit capacity. Any expense related to debt or preferred stock that
is allocated in its entirety to a group is allocated in whole to that group.

Allocation of Support Activities. The Hard Disk Drive group is charged for
specifically identified costs of certain support activities based upon the Hard
Disk Drive group's use of such activities. Where determinations based on use
alone were not practical, other methods and criteria were used to provide a
reasonable allocation of the cost of support activities attributable to the
Hard Disk Drive group. Such allocated support activities included certain
selling and marketing, executive management, human resources, corporate
finance, legal and corporate planning costs. The total of these allocations
were $98 million, $79 million, and $70 million in fiscal years 1997, 1998 and
1999, respectively. It is not practicable to provide a detailed estimate of the
expenses which would be recognized if the Hard Disk Drive group were a separate
entity.

F-57
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Depending on the tax laws of the respective jurisdictions, state and local
income taxes are calculated on either a consolidated or combined basis or on a
separate corporation basis. State income tax provisions and related tax
payments or refunds are allocated between the groups based on their respective
contributions to such consolidated or combined state taxable incomes. State and
local income tax provisions and related tax payments which are determined on a
separate corporation basis are allocated between the groups in a manner
designed to reflect the respective contributions of the groups to the
corporation's separate state or local taxable income.

The discussion of the Hard Disk Drive group's income tax provision (Note 12)
should be read in conjunction with Quantum's consolidated financial statements
and notes thereto.

Revenue Recognition. Revenue from sales of products is recognized on
shipment to customers, with provision made for estimated returns.

Foreign Currency Translation and Transactions. Assets, liabilities, and
operations of foreign offices and subsidiaries are recorded based on the
functional currency of the entity. For a majority of the Hard Disk Drive
group's material foreign operations, the functional currency is the U.S.
Dollar. The assets and liabilities of foreign offices with a local functional
currency are translated at current exchange rates from the local currency to
the reporting currency, the U.S. Dollar. The resulting gains or losses are
reported as a component of group equity. Although close to half of the Hard
Disk Drive group's sales are made to customers in non-U.S. locations and all of
the Hard Disk Drive group's hard disk drive products are manufactured in Japan,
Singapore and Ireland by Matsushita-Kotobuki Electronics Industries, Ltd.
("MKE"), a majority of the Hard Disk Drive group's material transactions are
denominated in U.S. dollars, including the purchase by the Hard Disk Drive
group of hard disk drives manufactured by MKE in U.S. dollars. Accordingly,
transaction gains or losses have been immaterial to the financial statements
for all years presented. The effect of foreign currency exchange rate
fluctuations on cash was also immaterial for the years presented. Assets and
liabilities denominated in other than the functional currency are remeasured
each month with the remeasurement gain or loss recorded in other income.

F-58
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Net Income (Loss) Per Share. Historical income (loss) per share is omitted
from the statements of operations because the Hard Disk Drive group stock was
not part of the capital structure of Quantum for the periods presented.
Following the implementation of the tracking stock proposal, the method of
calculating income per share for the Hard Disk Drive group stock will reflect
the terms of the Restated Certificate of Incorporation and will be computed by
dividing the net income of the Hard Disk Drive group by the weighted-average
number of shares of Hard Disk Drive group stock outstanding during the
applicable period. The effects of assuming issuance of Hard Disk Drive group
stock on a pro forma basis under existing long-term incentive, stock option,
and stock purchase plans will be anti-dilutive. Pro forma loss per share,
reflecting the Hard Disk Drive group stock to be issued under the tracking
stock proposal, is presented in the Hard Disk Drive group's statements of
operations.

Cash Equivalents and Marketable Securities. Highly liquid debt instruments
with a maturity of 90 days or less at the time of purchase are considered to be
cash equivalents. Cash equivalents are carried at fair value, which
approximates cost. Marketable securities have maturities of more than 90 days
at the time of purchase. Cash equivalents and marketable securities have been
classified as available-for-sale. Securities classified as available-for-sale
are carried at fair value with material unrealized gains and losses reported in
Group equity. The cost of debt securities is adjusted for amortization of
premiums and accretion of discounts to maturity. Such amortization is included
in interest income. Realized gains and losses and declines in value judged to
be other-than-temporary are recorded in other income or expense. The cost of
securities sold is based on the specific identification method.

Inventories. Inventories are carried at the lower of cost or market. Cost is
determined on a first-in, first-out basis.

Property, Plant, and Equipment. Property, plant, and equipment are carried
at cost, less accumulated depreciation and amortization computed on a straight-
line basis over the lesser of the estimated useful lives of the assets
(generally three to ten years for machinery, equipment, furniture, and
leasehold improvements; and twenty-five years for buildings) or the lease term.

F-59
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Acquired Intangibles. Acquired intangible assets are being amortized over
their estimated useful lives, which range from three to five years. The
accumulated amortization at March 31, 1998 and 1999 was $6 million and $5
million, respectively. Intangible assets are reviewed for impairment whenever
events or circumstances indicate impairment might exist, or at least annually.

Warranty Expense. The Hard Disk Drive group generally warrants its products
against defects for a period of one to five years. A provision for estimated
future costs relating to warranty expense is recorded when products are shipped
and revenue recognized.

Advertising Expense. The Hard Disk Drive group accrues for co-operative
advertising as the related revenue is earned, and other advertising expense is
recorded as incurred. Advertising expense for the years ended March 31, 1997,
1998 and 1999, was $24 million, $26 million, and $20 million, respectively.

Stock-Based Compensation. The Hard Disk Drive group accounts for its stock-
based employee compensation plans in accordance with the provisions of
Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees" and related Interpretations ("APB Opinion No. 25").

Risks and Uncertainties. The Hard Disk Drive group's business entails a
number of risks. As is typical in the information storage industry, a
significant portion of the Hard Disk Drive group's customer base is
concentrated with a small number of OEMs, and the Hard Disk Drive group is not
able to predict whether there will be any significant change in the demand for
its customers' products. The loss of any one of the Hard Disk Drive group's
more significant customers could have a material adverse effect on the Hard
Disk Drive group's results of operations. A limited number of hard disk drive
storage products make up a significant majority of the Hard Disk Drive group's
sales, and due to increasingly rapid technological change in the industry, the
Hard Disk Drive group's future depends on its ability to develop and
successfully introduce new products. The Hard Disk Drive group utilizes a third
party, MKE, to manufacture all of the products it sells. The Hard Disk Drive
group relies on MKE's ability to bring new products rapidly to volume
production and to meet stringent quality standards. MKE manufactures the Hard
Disk Drive group's drives in Japan, Singapore, and Ireland. If MKE were unable
to satisfy the Hard Disk Drive group's production requirements, the Hard Disk
Drive group would not have an alternative source to meet the demand for its
products without substantial delay and disruption to its operations.

F-60
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Note 2 Financial Instruments

Quantum's cash and cash equivalents, including certain available-for-sale
securities, are allocated between the Hard Disk Drive group and the DLT &
Storage Systems group. However, marketable securities have been allocated to
the Hard Disk Drive group.

Available-For-Sale Securities

The following is a summary of Quantum's consolidated available-for-sale
securities, all of which are classified as cash equivalents and marketable
securities:

<TABLE>
<CAPTION>
March 31, 1998 March 31, 1999
------------------------- -------------------------
Amortized Cost Fair Value Amortized Cost Fair Value
-------------- ---------- -------------- ----------
(In thousands)
<S> <C> <C> <C> <C>
Certificates of
deposit................ $ 411,700 $411,700 $499,400 $499,400
Money market funds...... -- -- 125,200 125,200
Corporate commercial
paper and bank notes... 103,346 103,339 58,484 58,486
U.S. Treasury securities
and obligations of U.S.
government agencies.... 165,364 165,360 100,589 100,589
Other................... 4,613 4,613 5,121 5,121
--------- -------- -------- --------
$ 685,023 $685,012 $788,794 $788,796
========= ======== ======== ========
Included in cash and
cash equivalents....... $ 613,450 $613,450 $764,368 $764,368
Included in marketable
securities............. 71,573 71,562 24,426 24,428
--------- -------- -------- --------
$ 685,023 $685,012 $788,794 $788,796
========= ======== ======== ========
</TABLE>

The difference between the amortized cost of available-for-sale securities
and fair value was immaterial at March 31, 1998 and 1999, and therefore no
gross unrealized gains or losses were recorded in Quantum's stockholders'
equity. The estimated fair value of available-for-sale securities is based on
market quotations. There were no sales of available-for-sale securities in
fiscal years 1998 or 1999. At March 31, 1999, the average available-for-sale
portfolio duration was approximately 20 days, and no security had a maturity
longer than one year.

Derivative Financial Instruments

F-61
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

The following is a summary of foreign currency forward contracts held for
asset and liability management purposes:

<TABLE>
<CAPTION>
March 31,
-----------------------------------
1998 1999
----------------- -----------------
(In millions, except for forward
rates)
<S> <C> <C>
Currency to be sold................... Yen Yen
Maturity dates........................ April-May 1998 April-May 1999
Foreign currency notional amount...... 1,600 yen 2,900 yen
Weighted average forward rate......... 132.23 119.06
U.S. dollar notional amount........... $12.1 $24.4
U.S. dollar equivalent................ $12.3 $24.5
Fair value............................ $(0.2) $(0.1)
<CAPTION>
March 31,
-----------------------------------
1998 1999
----------------- -----------------
(In millions, except for forward
rates)
<S> <C> <C>
Currency to be purchased.............. Swiss Franc Swiss Franc
Maturity dates........................ April 1998 April 1999
Foreign currency notional amount...... 26.5 Swiss Francs 22.0 Swiss Francs
Weighted average forward rate......... 1.51 1.49
U.S. dollar notional amount........... $17.5 $14.8
U.S. dollar equivalent................ $17.4 $14.8
Fair value............................ $(0.1) $ --
</TABLE>

The fair values for foreign currency forward contracts represent the
difference between the contracted forward rate and the quoted fair value of the
underlying Yen or Swiss Francs at the balance sheet dates. Quantum generally
does not require collateral from the counterparties to foreign currency forward
contracts.

Carrying Amount and Fair Values of Financial Instruments

The estimated fair value of Quantum's borrowings (pooled debt) are
summarized as follows:

F-62
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Note 3 Inventories

Inventories consisted of:

<TABLE>
<CAPTION>
March 31,
-----------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C> <C>
Materials and purchased parts........................ $ 2,316 $ 2,204
Work in process...................................... 14,616 5,377
Finished goods....................................... 195,075 139,943
-------- --------
$212,007 $147,524
======== ========
</TABLE>

In fiscal year 1998, the Hard Disk Drive group recorded a $103 million
charge to cost of revenue related to the transition to a new generation of its
high-end disk drive products, primarily for inventory write-offs and
adjustments and losses related to firm inventory purchase commitments.

Note 4 Property, Plant and Equipment

Property, plant, and equipment consisted of:

<TABLE>
<CAPTION>
March 31,
--------------------
1998 1999
--------- ---------
(In thousands)
<S> <C> <C>
Machinery and equipment.............................. $ 271,318 $ 282,872
Furniture and fixtures............................... 27,219 25,774
Buildings and leasehold improvements................. 116,327 123,319
Land................................................. 4,628 3,828
--------- ---------
419,492 435,793
Less accumulated depreciation and amortization....... (191,732) (236,987)
--------- ---------
$ 227,760 $ 198,806
========= =========
</TABLE>

Note 5 Loss from Investee

On May 16, 1997, the Hard Disk Drive group sold a controlling interest in
its recording heads operations to MKE, thereby forming a recording heads joint
venture with MKE, MKE-Quantum Components LLC ("MKQC"). The operations were
involved in the research, development, and manufacture of MR recording heads
used in the Hard Disk Drive group's hard disk drive products manufactured by
MKE.

The Hard Disk Drive group contributed recording heads assets and operations,
and leased certain premises to MKQC. The recording heads assets that Quantum
contributed to MKQC consisted of inventory, equipment, accounts receivable, and
intangibles, which aggregated $211 million. MKQC assumed $51 million of debt
payable to Quantum and assumed $24 million of third-party liabilities. MKE paid
Quantum $94 million and contributed $110 million to MKQC in exchange for a 51%
majority ownership interest in MKQC. Quantum retained a 49% minority ownership
interest in MKQC. Quantum employees who were involved in the recording heads
operations became employees of MKQC.

MKE and Quantum shared pro rata in MKQC's results of operations and agreed
to share pro rata in any capital funding requirements.

F-63
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Subsequent to May 16, 1997, the Hard Disk Drive group accounted for its 49%
interest in MKQC using the equity method of accounting. The results of the Hard
Disk Drive group's involvement in recording heads through May 15, 1997, were
combined.

Quantum provided support services to MKQC. The support services were mainly
finance, human resources, legal, and computer support. MKQC reimbursed Quantum
for the estimated cost of the services.

Summarized Financial Information

The following is summarized financial information for MKQC:

On October 28, 1998, Quantum and MKE agreed to dissolve MKQC because MKQC
had not been able to produce MR recording heads on a cost-effective basis. In
connection with the dissolution, MKE has taken control and ownership of MKQC's
manufacturing operations in Batam, Indonesia; MKQC's domestic operations have
ceased; and its domestic assets are in liquidation. In the third quarter of
fiscal year 1999, the Hard Disk Drive group recorded a $101 million loss from
investee which includes a write-off of the Hard Disk Drive group's investment
in MKQC; a write-down of the Hard Disk Drive group's interest in facilities in
Louisville, Colorado, and Shrewsbury, Massachusetts that were occupied by MKQC;
warranty costs resulting from MR recording heads manufactured by MKQC; and the
Hard Disk Drive group's 49% pro rata share in funding MKQC's repayment of its
obligations, primarily bank debt, accounts payable, and other liabilities
through June 1999 when the liquidation of MKQC is expected to be completed.

MKQC's unaudited net loss for the six months ended September 27, 1998 was
$84 million on revenue of $62 million. The Hard Disk Drive group's 49% interest
in the net loss was $41 million.

F-64
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Note 6 Credit Agreements, Long-Term Debt and Convertible Subordinated Debt

Quantum's debt includes the following:

Less short-term portion of debt........................ 935 1,024
-------- --------
Total long-term debt and convertible subordinated
debt.................................................. $327,485 $344,461
======== ========
The Hard Disk Drive group's portion of Quantum debt:
Short-term debt........................................ $ 312 $ 341
Long-term debt and convertible subordinated debt,
excluding current portion............................. 109,161 114,820
-------- --------
The Hard Disk Drive group total debt................. $109,473 $115,161
======== ========

The DLT & Storage Systems group's portion of Quantum
debt:
Short-term debt........................................ $ 623 $ 683
Long-term debt and convertible subordinated debt,
excluding current portion............................. 218,324 229,641
-------- --------
The DLT & Storage Systems group total debt........... $218,947 $230,324
======== ========
Weighted average interest rate on Quantum's debt at
period-end............................................ 7.39% 7.31%
</TABLE>

In July 1997, Quantum issued $288 million of 7% convertible subordinated
notes. The notes mature on August 1, 2004, and are convertible at the option of
the holder at any time prior to maturity, unless previously redeemed, into
shares of Quantum's common stock at a conversion price of $46.325 per share.
The notes are redeemable at Quantum's option on or after August 1, 1999, and
prior to August 1, 2001, under certain conditions related to the price of
Quantum's common stock. Subsequent to August 1, 2001, the notes are redeemable
at Quantum's option at any time. In the event of certain changes involving all
or substantially all of Quantum's common stock, the notes would become
redeemable at the option of the holder. Redemption prices range from 107% of
the principal to 100% at maturity. The notes are unsecured obligations
subordinated in right of payment to all existing and future senior indebtedness
of Quantum.

If the Tracking Stock Proposal is implemented, each of the 7% subordinated
notes, which currently are convertible into shares of Quantum Common Stock,
will become convertible into a number of shares of Hard Disk Drive group stock
and a number of shares of DLT & Storage Systems group stock equal to the
numbers

F-65
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

of such shares which the holder of such note would receive under the tracking
stock proposal had such note been converted immediately prior to the
implementation of the tracking stock proposal. The notes will not be separately
convertible into solely DLT & Storage Systems group stock or solely Hard Disk
Drive group stock. The exercise price and maturity date of each convertible
note will not be affected by the implementation of the tracking stock proposal.

Note 7 Redeemable Preferred Stock

In fiscal year 1998, the holder of the 90,000 shares of Redeemable
Convertible Participating Series B Preferred Stock exercised its right to
convert the shares to Quantum common stock. Quantum issued 180,000 shares of
Quantum common stock pursuant to the conversion.

Note 8 Stock Incentive Plans

Long-Term Incentive Plan. Quantum has a Long-Term Incentive Plan (the
"Plan") that provides for the issuance of stock options, stock appreciation
rights, stock purchase rights, and long-term performance awards (collectively
referred to as "options") to employees, consultants, officers and affiliates of
Quantum. The Plan has available and reserved for future issuance 19.2 million
shares and allows for an annual increase in the number of shares available for
issuance, subject to a limitation. Available for grant as of March 31, 1999,
were 529,000 shares. Options under the Plan expire no later than ten years from
the grant date and generally vest over four years. Restricted stock granted
under the Plan generally vests over two to three years. In fiscal years 1997,
1998 and 1999, Quantum recorded compensation expense of $1,916,000, $3,179,000
and $3,211,000, respectively, related to restricted stock granted pursuant to
stock purchase rights under the Plan, a portion of which was allocated to the
Hard Disk Drive group. The number of shares of restricted stock granted under
the Plan were 354,290 shares, 65,500 shares, and 157,200 shares, in fiscal
years 1997, 1998 and 1999, respectively, at an exercise price of $.01.

Stock Option Plans. Quantum has Stock Option Plans (the "Plans") under which
5.1 million shares of Quantum common stock was reserved for future issuance at
March 31, 1999 to directors of Quantum. Options under the Plans are granted at
prices determined by the Board, but at not less than the fair market value, and
accordingly no compensation accounting has been required at the original date
of grant. Options currently expire no later than ten years from the grant date
and generally vest ratably over one to four years. At March 31, 1999, options
with respect to 470,000 shares of Quantum common stock were available for
grant.

F-66
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Stock Option Summary Information. A summary of activity relating to
Quantum's Long-Term Incentive Plan and the Stock Option Plans follows:

The following tables summarize information about Quantum's options
outstanding at March 31, 1999:

<TABLE>
<CAPTION>
Outstanding Options
-------------------------------------------------------------------
Shares Outstanding at Weighted-Average Weighted-Average
Range of Exercise Prices March 31, 1999 (000s) Remaining Contractual Life Exercise Price
------------------------ --------------------- -------------------------- ----------------
<C> <S> <C> <C>
$ 2.17 -- $ 8.75 7,842 6.09 $ 6.23
$ 8.78 -- $19.81 7,816 7.88 $15.37
$20.19 -- $30.81 7,718 9.28 $22.56
------
23,376 7.74 $14.68
======
</TABLE>

<TABLE>
<CAPTION>
Options Exercisable
----------------------------------------------
Shares Exercisable at
March 31, 1999 Weighted-Average
Range of Exercise Prices (000s) Exercise Price
------------------------ --------------------- ----------------
<C> <S> <C>
$ 2.17 -- $ 8.75 6,576 $ 6.24
$ 8.78 -- $19.81 4,095 $14.28
$20.19 -- $30.81 1,115 $23.30
------
11,786 $10.65
======
</TABLE>

F-67
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

determined by ATL's Board of Directors. Options under ATL Plans vest over a
three year period and expire ten years after date of grant or 90 days after
termination of employment. Subsequent to completing the acquisition of ATL, no
additional grants may be made from the ATL Plans.

If the tracking stock proposal is approved by the stockholders and
implemented by the Board, each outstanding stock option under Quantum's stock
option plans will be converted into separately exercisable options to acquire
one share of DLT & Storage Systems group stock and 0.5 of a share of Hard Disk
Drive group stock. The exercise price for the resulting DLT & Storage Systems
group stock options and Hard Disk Drive group stock options will be calculated
by multiplying the exercise price under the original option from which they
were converted by a fraction, the numerator of which is the opening price of
DLT & Storage Systems group stock or Hard Disk Drive group stock, as the case
may be, on the first date such stock are traded on the New York Stock Exchange
and the denominator of which is the sum of such DLT & Storage Systems group
stock and Hard Disk Drive group stock prices. This is intended to ensure that
the aggregate intrinsic value of the options will be preserved, and the ratio
of the exercise price per option to the market value per share will not be
reduced. In addition, the vesting provision and option periods of the original
grants will remain the same when converted.

Stock Purchase Plan. Quantum has an employee stock purchase plan (the
"Purchase Plan") that allows for the purchase of stock at 85% of fair market
value at the date of grant or the exercise date, whichever value is less. The
Purchase Plan is qualified under Section 423 of the Internal Revenue Code. Of
the 22.8 million shares authorized to be issued under the plan, 1,366,000
shares were available for issuance at March 31, 1999. Quantum's employees
purchased 3,216,000 shares, 3,454,000 shares, and 2,555,000 shares under the
Purchase Plan in fiscal years 1997, 1998, and 1999, respectively. The weighted
average exercise price of stock purchased under the Purchase Plan was $5.41,
$6.22 and $9.41 in fiscal years 1997, 1998, and 1999, respectively.

Other. The Hard Disk Drive group adopted SFAS No. 123, "Accounting for
Stock-Based Compensation" in fiscal year 1997. The Hard Disk Drive group has
elected to continue to account for its stock-based compensation plans under
Accounting Principles Board ("APB") Opinion No. 25 and disclose the pro forma
effects of the plans on net income and earnings per share as provided by SFAS
No. 123. Accordingly, no compensation expense has been recognized for the stock
option plans and the employee stock purchase plans as all options have been
issued at fair market value. Since Hard Disk Drive group stock was not part of
the capital structure of Quantum for the periods presented, there were no stock
options outstanding. Therefore, the pro forma effect of Hard Disk Drive group
stock options on the accompanying combined financial statements is not
presented.

Note 9 Common Stock and Stockholder Rights Plan

The Hard Disk Drive group stock will represent a separate class of Quantum's
stock if the tracking stock proposal is approved. Additional shares of Hard
Disk Drive group stock may be issued from time to time upon exercise of stock
options or at the discretion of Quantum's Board.

F-68
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

20% or more of the outstanding common stock each right will entitle its holder
to purchase 1/1000 preferred share or, under certain circumstances, shares of
common stock with a market value twice the exercise price of the right. The
Rights Plan may serve as a deterrent to takeover tactics that are not in the
best interests of stockholders.

The rights will expire on August 4, 2008, unless earlier redeemed by Quantum
or extended. The rights would be exercisable only if a person or group acquires
(i) 20% or more of the then outstanding shares of DLT & Storage Systems group
stock or (ii) 20% of the then outstanding shares of Hard Disk Drive group
stock, or commences a tender offer that would result in such person or group
beneficially owning such number of shares. In such event, each Right would
entitle the holder to purchase from Quantum (i) in the case of a DLT & Storage
Systems group right, 1/1000 of a share of Series B Junior Preferred Stock (a
"Series B Unit") at a purchase price to be determined by the Board, subject to
adjustment or, under certain circumstances, shares of DLT & Storage Systems
group stock with a market value twice the exercise price of the DLT & Storage
Systems group right and (ii) in the case of a Hard Disk Drive group right,
1/1000 of a share of Series C Junior Preferred Stock (a "Series C Unit") at a
purchase to be determined by the Board, subject to adjustment or, under certain
circumstances, shares of Hard Disk Drive group stock with a market value twice
the exercise price of the Hard Disk Drive group right.

Note 10 Savings and Investment Plan

Substantially all of the regular domestic employees are eligible to make
contributions to Quantum's 401(k) savings and investment plan. Quantum matches
a percentage of the employees' contributions and may also make additional
discretionary contributions to the plan. Quantum contributions were $5 million,
$6 million and $7 million, in fiscal years 1997, 1998 and 1999, respectively.

F-69
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Note 11 Income Taxes

The income tax benefit consists of the following:

<TABLE>
<CAPTION>
Year Ended March 31,
------------------------------
1997 1998 1999
-------- --------- ---------
(In thousands)
<C> <S> <C> <C> <C>
Federal: Current......................... $(60,979) $(106,585) $(125,940)
Deferred........................ 4,946 21,029 20,682
-------- --------- ---------
(56,033) (85,556) (105,258)
-------- --------- ---------
State: Current......................... (5,470) (8,591) (23,574)
Deferred........................ 4,028 (15,098) 2,344
-------- --------- ---------
(1,442) (23,689) (21,230)
-------- --------- ---------
Foreign: Current......................... 20,088 26,857 18,021
Deferred........................ 17,928 (593) (3,510)
-------- --------- ---------
38,016 26,264 14,511
-------- --------- ---------
Income tax benefit........................ $(19,459) $ (82,981) $(111,977)
======== ========= =========
</TABLE>

The tax benefits associated with nonqualified stock options, disqualifying
dispositions of incentive stock options, and employee stock purchase plan
shares increase refundable taxes as shown above by $4 million, $7 million, and
$6 million in fiscal years 1997, 1998 and 1999, respectively. Such benefits are
credited to group equity when realized.

The Hard Disk Drive group's income tax provision differs from the amount
computed by applying the federal statutory rate of 35% to income before income
taxes as follows:

<TABLE>
<CAPTION>
Year Ended March 31,
-----------------------------
1997 1998 1999
-------- -------- ---------
(In thousands)
<S> <C> <C> <C>
Tax (benefit) at federal statutory rate... $ 7,559 $(47,544) $ (92,576)
State income tax benefit, net of federal
effect................................... (937) (15,398) (13,800)
Research and development credit........... -- (5,990) (1,631)
Foreign earnings taxed at less than U.S.
rates.................................... (17,169) (15,813) (5,004)
Valuation allowance....................... (8,431) -- --
Other items............................... (481) 1,764 1,034
-------- -------- ---------
$(19,459) $(82,981) $(111,977)
======== ======== =========
</TABLE>

F-70
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Significant components of deferred tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
Year Ended March
31,
------------------
1998 1999
-------- --------
(In thousands)
<S> <C> <C>
Deferred tax assets:
Inventory valuation methods........................ $ 39,834 $ 23,677
Accrued warranty expense........................... 18,816 18,752
Allowance for doubtful accounts.................... 3,398 2,433
Distribution reserves.............................. 6,387 6,785
Restructuring charges.............................. 20,422 4,331
Other accruals and reserves not currently
deductible for tax purposes....................... 20,821 29,099
Depreciation methods............................... 24,441 41,699
Amortization methods............................... 26,037 30,207
-------- --------
160,156 156,983
-------- --------
Deferred tax liabilities:
Foreign inventory valuation methods................ (17,322) (13,810)
Tax on unremitted foreign earnings net of foreign
tax credits and foreign deferred taxes............ (77,180) (97,817)
Other.............................................. (14,015) (13,234)
-------- --------
(108,517) (124,861)
-------- --------
Net deferred tax asset............................... $ 51,639 $ 32,122
======== ========
</TABLE>

Pretax income from foreign operations was $241 million, $139 million, and
$120 million for the fiscal years ended March 31, 1997, 1998, and 1999,
respectively. U.S. taxes have not been provided for unremitted foreign earnings
of $354 million. The residual U.S. tax liability, if such amounts were
remitted, would be approximately $87 million.

Quantum's federal income tax returns have been examined by the Internal
Revenue Service (IRS) for all years through 1993. All issues have been resolved
with no material effect, and the IRS has closed those years. Quantum's federal
tax returns for the years 1994-1996 are presently under examination by the IRS.
Management believes sufficient accruals have been provided in prior years for
any adjustments that may result for the years under examination.

Note 12 Litigation

Quantum and certain of its current and former officers and directors have
been named as defendants in two class-action lawsuits, one filed on August 28,
1996, in the Superior Court of Santa Clara County, California, and one filed on
August 30, 1996, in the U.S. District Court of the Northern District of
California. The plaintiff in both class actions purports to represent a class
of all persons who purchased Quantum Common Stock between February 26, 1996,
and June 13, 1996. The complaints allege that the defendants violated various
federal securities laws and California statutes by concealing and/or
misrepresenting material adverse information about Quantum and that individual
defendants sold shares of Quantum Common Stock based on material nonpublic
information.

F-71
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

court, the judge dismissed the action as to four of the individual defendants
with prejudice and as to three of the individual defendants without prejudice.
The demurrer as to Quantum was overruled. The Court heard oral argument on
plaintiffs' motion for class certification on November 4, 1997. On March 4,
1998, the Court entered an order denying plaintiffs' motion without prejudice.
Limited discovery is proceeding.

Certain of Quantum's current and former officers and directors were also
named as defendants in a derivative lawsuit, which was filed on November 8,
1996, in the Superior Court of Santa Clara County. The derivative complaint was
based on factual allegations substantially similar to those alleged in the
class-action lawsuits. Defendants' demurrer to the derivative complaint was
sustained without prejudice on April 14, 1997. Plaintiffs did not file an
amended complaint. On August 7, 1997, the Court issued an order of dismissal
and entered final judgment dismissing the complaint.

On August 7, 1998, Quantum was named as one of several defendants in a
patent infringement lawsuit filed in the U.S. District Court for the Northern
District of Illinois, Eastern Division. On Quantum's motion, the suit has been
moved to the Northern District of California. The plaintiff, Papst Licensing
GmbH, owns at least 24 U.S. patents which it asserts that Quantum has
infringed. Quantum has studied many of these
patents before and, of the patents it has studied, believes that defenses of
patent invalidity and non-infringement can be asserted. However, Quantum has
not yet had time to make a complete study of all the patents asserted by Papst
and there can be no assurance that Quantum has not infringed on these or other
patents owned by Papst. The final results of this litigation, as with any
litigation, are uncertain. If required, there can be no assurance that licenses
to any technology owned by Papst or any other third party alleging infringement
could be obtained on commercially reasonable terms if at all. Adverse
resolution of the Papst litigation or any other intellectual property
litigation could subject Quantum to substantial liabilities and require it to
refrain from manufacturing certain products which could have a material adverse
effect on Quantum's business, financial condition or results of operations. In
addition, the costs of engaging in the Papst litigation or other intellectual
property litigation could be substantial, regardless of the outcome.

Quantum is also subject to other legal proceedings and claims that arise in
the ordinary course of its business. While management currently believes the
amount of ultimate liability, if any, with respect to these actions will not
materially affect the financial position, results of operations, or liquidity
of Quantum, the ultimate outcome of any litigation is uncertain. Were an
unfavorable outcome to occur, the impact could be material to Quantum.

Note 13 Commitments

Quantum leases certain facilities for the Hard Disk Drive group's use under
non-cancelable operating lease agreements for periods of up to 15 years. Some
of the leases have renewal options ranging from one to ten years and contain
provisions for maintenance, taxes, or insurance.

The Hard Disk Drive group's rent expense was $22 million, $21 million, and
$22 million for the fiscal years ended March 31, 1997, 1998, and 1999,
respectively.

F-72
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Future minimum lease payments under operating leases are as follows:

<TABLE>
<CAPTION>
Year ended March 31, (In thousands)
<S> <C>
2000.................................................... $ 22,337
2001.................................................... 21,329
2002.................................................... 20,197
2003.................................................... 20,018
2004.................................................... 17,547
Thereafter.............................................. 65,288
--------
Total future minimum lease payments..................... $166,716
========
</TABLE>

Note 14 Business Units and Geographic Information

The Hard Disk Drive group currently has two primary product lines, desktop
hard disk drives and high-end hard disk drives. The Hard Disk Drive group has
two separate business units that support these two product lines. In addition,
through May 15, 1997, recording heads were manufactured by the Hard Disk Drive
group and were used only in the Hard Disk Drive group hard disk drives.

The desktop business unit designs, develops and markets desktop hard disk
drives designed to meet the storage requirements of entry-level to high-end
desktop personal computers in home and business environments. The high-end
business unit designs, develops and markets high-end hard disk drives designed
to meet the storage requirements of network servers, workstations and storage
subsystems. In the future, the two the Hard Disk Drive group business units may
become a single business unit as their markets begin to merge and be reported
on a combined basis.

The Hard Disk Drive group's recording heads business through May 15, 1997
was reported in the Hard Disk Drive group's combined operations. Effective May
16, 1997, MKE acquired a 51% interest in the Hard Disk Drive group's recording
heads business which became part of a joint venture with MKE. The Hard Disk
Drive group accounted for its 49% interest in the joint venture using the
equity method. On October 28, 1998, the joint venture was dissolved and a
charge was recorded to write-off assets and recognize obligations related to
the dissolution. For more information on the loss from investee see note 5 of
the notes to combined financial statements.

F-73
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

<TABLE>
<CAPTION>
At or For the
Year Ended March 31,
----------------------
1997 1998 1999
------ ------ ------
(In millions)
<S> <C> <C> <C>
Business unit:
Desktop
Revenue.............................................. $4,005 $3,981 $3,079
Gross profit......................................... 566 453 232
Unit operating profit (loss)......................... 300 184 (49)
Inventory and property, plant and equipment, net of
accumulated depreciation............................ 259 320 294
Expenditures for long-lived assets................... 65 89 64

High-end
Revenue.............................................. 587 634 520
Gross profit (loss).................................. (11) (81) 59
Unit operating loss.................................. (154) (250) (83)
Inventory and property plant and equipment, net of
accumulated depreciation............................ 167 120 52
Expenditures for long-lived assets................... 42 40 18

Recording heads
Unit operating loss.................................. (110) (9) --
Loss from investee................................... -- (66) (142)
Inventory and property, plant and equipment, net of
accumulated depreciation............................ 148 -- --
Expenditures for long-lived assets................... 57 -- --
</TABLE>

<TABLE>
<CAPTION>
Year Ended March 31,
------------------------
1997 1998 1999
------ ------- -------
(In millions)
<S> <C> <C> <C>
Profit or (loss) reconciliation:
Total unit operating profit (loss).................... $ 36 $ (74) $(132)
Total loss from investee.............................. -- (66) (142)
Unallocated amounts:
Interest and other income/(expense)................... (15) 4 10
------ ------- -------
Income (loss) before income taxes................... $ 21 $(136) $(264)
====== ======= =======
</TABLE>

<TABLE>
<CAPTION>
March 31,
-------------
1998 1999
------ ------
(In millions)
<S> <C> <C> <C>
Assets reconciliation:
Total unit inventory and property, plant and equipment, net
of accumulated depreciation................................ $ 440 $ 346
Cash and cash equivalents................................... 253 500
Marketable securities....................................... 72 24
Accounts receivable, net of allowance for doubtful
accounts................................................... 586 392
Deferred taxes.............................................. 90 72
Other current assets........................................ 118 97
Intangible assets, less accumulated amortization............ 9 5
Other assets................................................ 78 34
------ ------
Total combined assets..................................... $1,646 $1,470
====== ======
</TABLE>

Recording heads produced by the recording heads business were transferred to
MKE and used in the manufacture of hard disk drives for the Hard Disk Drive
group. The value at which the recording heads were transferred was recorded as
an offset to cost of sales by the Hard Disk Drive group.

F-74
<PAGE>

HARD DISK DRIVE GROUP

NOTES TO COMBINED FINANCIAL STATEMENTS--(Continued)

Property plant and equipment, net of accumulated depreciation, included
equipment related to research and development, testing and configuration of
hard disk drives, logistics, customer service, and administration. Cash and
cash equivalents, marketable securities, accounts receivable, deferred taxes,
other current assets, intangible assets and other assets were not allocated to
the business units.

Geographic Information

Revenue and long-lived assets by region are as follows (revenue is
attributed to regions based on the location of customers):

<TABLE>
<CAPTION>
Year Ended March 31,
--------------------------------------------------------
1997 1998 1999
------------------ ------------------ ------------------
Long-Lived Long-Lived Long-Lived
Revenue Assets Revenue Assets Revenue Assets
------- ---------- ------- ---------- ------- ----------
(In millions)
<S> <C> <C> <C> <C> <C> <C>
United States... $1,959 $329 $2,114 $200 $1,630 $166
Europe.......... 1,459 13 1,457 13 993 11
Asia Pacific.... 1,069 61 969 24 871 27
Latin America... 104 -- 75 -- 105 --
------ ---- ------ ---- ------ ----
Total........... $4,591 $403 $4,615 $237 $3,599 $204
====== ==== ====== ==== ====== ====
</TABLE>

One customer accounted for 10% or more of combined revenue in fiscal years
1997, 1998 and 1999. Revenue from this customer represented $552 million,
$552 million and $375 million of the Hard Disk Drive group's combined revenue
in the respective periods. Another customer accounted for 10% or more of
combined revenue in fiscal years 1998 and 1999. Revenue from this customer
represented $626 million and $506 million of the Hard Disk Drive group's
combined revenue in the respective periods.

Note 15 Unaudited Quarterly Combined Financial Data

<TABLE>
<CAPTION>
Fiscal Year 1999
------------------------------------------------
1st 2nd
Quarter Quarter 3rd Quarter 4th Quarter
---------- ---------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Total revenue............. $ 847,321 $ 874,253 $ 959,086 $ 918,660
Gross profit.............. 52,699 60,214 77,788 100,718
Net loss.................. (40,554) (34,878) (75,968) (1,126)
<CAPTION>
Fiscal Year 1998
------------------------------------------------
1st 2nd
Quarter Quarter 3rd Quarter 4th Quarter
---------- ---------- ----------- -----------
(In thousands)
<S> <C> <C> <C> <C>
Total revenue............. $1,181,139 $1,214,968 $1,189,602 $1,029,726
Gross profit (loss)....... 169,872 160,076 (11,864) 55,223
Net income (loss)......... 46,847 39,053 (98,247) (40,511)
</TABLE>

The results of operations for the third quarter of fiscal year 1999 included
the effect of a $101 million charge related to the dissolution of MKQC.

The results of operations for the third quarter fiscal year 1998 included
the effect of a $103 million special charge related to the Hard Disk Drive
group's high-end hard disk drive products.

The results of operations for the fourth quarter of fiscal year 1998 were
impacted by the reduction in estimated bonus accrued earlier in the fiscal
year.

F-75
<PAGE>

ANNEX I

RESTATED CERTIFICATE OF INCORPORATION

QUANTUM CORPORATION

(Originally Incorporated January 28, 1987 Under the Same Name)

ARTICLE I.

NAME

The name of the corporation is Quantum Corporation (the "Corporation").

ARTICLE II.

ADDRESS OF REGISTERED OFFICE;
NAME OF REGISTERED AGENT

The address of the Corporation's registered office in the State of Delaware
is Incorporating Services, Ltd., 410 South State Street, in the city of Dover,
County of Kent, 19901. The name of its registered agent at that address is
Incorporating Services, Ltd.

ARTICLE III.

PURPOSE

The nature of the business or purposes to be conducted or promoted by the
Corporation is to engage in any lawful act or activity for which corporations
may be organized under the Delaware General Corporation Law (the "DGCL").

ARTICLE IV.

CAPITAL STOCK

Section 1. Authorization. The total number of shares of all classes of stock
which the Corporation has authority to issue is 1,620,000,000 shares,
consisting of 1,000,000,000 shares of a class of common stock designated as
"Quantum Corporation--DSSG Common Stock," having a par value of $0.01 per share
(the "DSSG Stock"), 600,000,000 shares of a class of common stock designated as
"Quantum Corporation--Hard Disk Drive group Common Stock," having a par value
of $0.01 per share (the "HDDG Stock"), and 20,000,000 shares of preferred stock
having a par value of $0.01 per share (the "Preferred Stock"). The DSSG Stock
and the HDDG Stock shall hereinafter collectively be called "Common Stock" and
either shall sometimes be called a class of Common Stock. For purposes of this
Article IV, references to the "Board of Directors" shall refer to the Board of
Directors of the Corporation, as established in accordance with Article VI of
the Certificate of Incorporation of the Corporation, and references to "the
Certificate of Incorporation" shall refer to this Restated Certificate of
Incorporation as the same may be amended from time to time. Certain capitalized
terms used in this Article IV, shall have the meanings set forth in Section 2.6
of this Article. For purposes of this Article IV, the DSSG Stock, when issued,
shall be considered issued in respect of the DSSG Stock and the HDDG Stock,
when issued, shall be considered issued in respect of the HDDG Stock. The
number of authorized shares of any class or classes of capital stock of the
Corporation may be increased or decreased (but not below the number of shares
thereof then outstanding) by the affirmative vote of the holders of a majority
of the voting power of the stock of the Corporation entitled to vote generally
in the election of directors.

Annex I-1
<PAGE>

Upon the date on which this Restated Certificate of Incorporation shall
become effective, and without any further action on the part of the Corporation
or its stockholders, each share of the Corporation's common stock, par value
$0.01 per share, that is issued and outstanding shall be changed into one share
of DSSG Stock and 0.5 of a share of HDDG Stock.

Section 2. Common Stock. The voting powers, preferences and relative,
participating, optional or other special rights of the Common Stock, and the
qualifications and restrictions thereon, shall be as follows in this Section 2.

Section 2.1 Dividends. Subject to any preferences and relative,
participating, optional or other special rights of any outstanding class or
series of preferred stock of the Corporation and any qualifications or
restrictions on either class of Common Stock created thereby, dividends may be
declared and paid upon either class of Common Stock, upon the terms with
respect to each such class, and subject to the limitations provided for below
in this Section 2.1, as the Board of Directors may determine.

(a) Dividends on DSSG Stock. Dividends on DSSG Stock may be declared and
paid only out of the lesser of (i) the funds of the Corporation legally
available therefor and (ii) the DSSG Available Dividend Amount.

(b) Dividends on HDDG Stock. Dividends on HDDG Stock may be declared and
paid only out of the lesser of (i) the funds of the Corporation legally
available therefor and (ii) the HDDG Available Dividend Amount.

(c) Discrimination in Dividends Between Classes of Common Stock. The Board
of Directors, subject to the provisions of Sections 2.1(a) and 2.1(b), may at
any time declare and pay dividends exclusively on DSSG Stock, exclusively on
HDDG Stock, or on both such classes, in equal or unequal amounts,
notwithstanding the relative amounts of the Available Dividend Amount with
respect to either Group, the amount of dividends previously declared on either
class, the respective voting or liquidation rights of either class or any other
factor.

(d) Shares Distributions. Except as permitted by Sections 2.4(a) and 2.4(b),
the Board of Directors may declare and pay dividends or distributions of shares
of DSSG Stock or HDDG Stock (or Convertible Securities convertible into or
exchangeable or exercisable for shares of DSSG Stock or HDDG Stock) on shares
of a class of Common Stock or shares of a class or series of preferred stock of
the Corporation only as follows:

(i) dividends or distributions of shares of DSSG Stock (or Convertible
Securities convertible into or exchangeable or exercisable for shares of
DSSG Stock) on shares of DSSG Stock or shares of preferred stock attributed
to the DLT & Storage Systems group; and

(ii) dividends or distributions of shares of HDDG Stock (or Convertible
Securities convertible into or exchangeable or exercisable for shares of
HDDG Stock) on shares of HDDG Stock or shares of preferred stock attributed
to the HDDG.

Section 2.2 Voting Rights. (a) General. Except as otherwise provided by law,
by the terms of any outstanding class or series of preferred stock of the
Corporation or by any provision of the Certificate of Incorporation restricting
the power to vote on a specified matter to other stockholders, the entire
voting power of the stockholders of the Corporation shall be vested in the
holders of the Common Stock, who shall be entitled to vote on any matter on
which the holders of stock of the Corporation shall, by law or by the
provisions of the Certificate of Incorporation or Bylaws of the Corporation, be
entitled to vote, and both classes of Common Stock shall vote thereon together
as a single class.

(b) Number of Votes for each Class of Common Stock. On each matter to be
voted on by the holders of both classes of Common Stock voting together as a
single class, the number of votes per share of each class shall be as follows:

(i) each outstanding share of DSSG Stock shall have one vote; and

Annex I-2
<PAGE>

(ii) each outstanding share of HDDG Stock shall have a number of votes
(including a fraction of one vote) equal to the quotient (rounded to the
nearest three decimal places) of the average Market Value of one share of
HDDG Stock during the 20-Trading Day Period ending on the tenth Trading Day
prior to the record date for determining the stockholders entitled to vote,
divided by the average Market Value of a share of DSSG Stock during such
20-Trading Day period.

Notwithstanding the foregoing, if shares of only one class of Common Stock are
outstanding on the record date for determining the holders of Common Stock
entitled to vote on any matter, then each share of that class shall be entitled
to one vote and, if either class of Common Stock is entitled to vote as a
separate class with respect to any matter, each share of that class shall, for
purpose of such vote, be entitled to one vote on such matter.

In addition to any provision of law or any provision of the Certificate of
Incorporation entitling the holders of outstanding shares of DSSG Stock or HDDG
Stock to vote as a separate class, the Board of Directors may condition the
approval of any matter submitted to stockholders on receipt of a separate vote
of the holders of outstanding shares of DSSG Stock or HDDG Stock.

Section 2.3 Liquidation Rights. In the event of any voluntary or involuntary
dissolution, liquidation or winding up of the Corporation, after payment or
provision for payment of the debts and other liabilities of the Corporation and
the full preferential amounts (including any accumulated and unpaid dividends)
to which the holders of any outstanding shares of preferred stock of the
Corporation are entitled (regardless of the Group to which such shares of
preferred stock were attributed), the holders of the DSSG Stock and HDDG Stock
shall be entitled to receive the assets, if any, of the Corporation remaining
for distribution to holders of Common Stock on a per share basis in proportion
to the respective liquidation units per share of such class. Each share of DSSG
Stock shall have one liquidation unit and each share of HDDG Stock shall have a
number of liquidation units (including a fraction of one liquidation unit)
equal to the quotient (rounded to the nearest five decimal places) of the
average Market Value of one share of HDDG Stock during the 20-Trading Day
period ending on the 40th Trading Day after the effective date of this
certificate of incorporation, divided by the average Market Value of one share
of DSSG Stock during such 20-Trading Day period. Neither the merger nor
consolidation of the Corporation into or with any other corporation, nor a
sale, transfer or lease of all or any part of the assets of the Corporation,
shall, alone, be deemed a liquidation or winding up of the Corporation or cause
the dissolution of the Corporation, for purposes of this Section 2.3.

If the Corporation shall in any manner subdivide (by stock split,
reclassification or otherwise) or combine (by reverse stock split,
reclassification or otherwise) the outstanding shares of DSSG Stock or HDDG
Stock, or declare a dividend in shares of either class to holders of such
class, the per share liquidation units of either class of Common Stock
specified in the preceding paragraph of this Section 2.3, as adjusted from time
to time, shall be appropriately adjusted as determined by the Board of
Directors, so as to avoid dilution in the aggregate, relative liquidation
rights of the shares of any class of Common Stock.

Section 2.4 Conversion or Redemption of the Common Stock. DSSG Stock is
subject to conversion or redemption and HDDG Stock is subject to conversion or
redemption, in each case, upon the terms provided below in this Section 2.4;
provided, however, that neither class of Common Stock may be converted or
redeemed if the other class of Common Stock has been converted or redeemed in
its entirety or notice thereof shall have been given as required by this
Section 2.4.

(a) Mandatory and Optional Conversion and Redemption of DSSG Stock Other
Than for DSSG Subsidiary Stock. (i) In the event of the Disposition, in one
transaction or a series of related transactions, by the Corporation and/or its
subsidiaries of all or substantially all of the properties and assets
attributed to the DSSG to one or more persons or entities (other than the
Disposition (w) by the Corporation of all or substantially all of its
properties and assets in one transaction or a series of related transactions in
connection with the dissolution, liquidation or winding up of the Corporation
and the distribution of assets to stockholders as referred to in Section 2.3,
(x) of the properties and assets attributed to the DSSG as contemplated by
Section 2.4(c) or otherwise to all holders of shares of DSSG Stock divided
among such holders on a pro rata basis in

Annex I-3
<PAGE>

accordance with the number of shares of DSSG Stock outstanding, (y) to any
person or entity controlled (as determined by the Board of Directors) by the
Corporation or (z) in connection with a Related Business Transaction in respect
of the DLT & Storage Systems group), the Corporation shall, on or prior to the
95th Trading Day after the date of consummation of such Disposition (the
"Disposition Date"), pay a dividend on DSSG Stock or redeem some or all of DSSG
Stock or convert DSSG Stock into HDDG Stock (or another class or series of
common stock of the Corporation), all as provided by the following Sections
2.4(a)(i)(1) and 2.4(a)(i)(2) and, to the extent applicable, by Section 2.4(f),
as the Board of Directors shall have selected among such alternatives:

(1) provided that there are funds of the Corporation legally available
therefor:

(A) pay to the holders of the shares of DSSG Stock a dividend pro
rata in accordance with the number of shares of DSSG Stock held by each
such holder, as the Board of Directors shall have declared subject to
compliance with Section 2, in cash and/or in securities (other than a
dividend of shares of a class of Common Stock) or other property having
a Fair Value as of the Disposition Date in the aggregate equal to the
Fair Value as of the Disposition Date of the Net Proceeds of such
Disposition; or

(B) (I) subject to the last sentence of this Section 2.4(a)(i), if
such Disposition involves all (not merely substantially all) of the
properties and assets attributed to the DLT & Storage Systems group,
redeem or exchange as of the Redemption Date determined as provided by
Section 2.4(f)(iii), all outstanding shares of DSSG Stock in exchange
for, on a pro rata basis, cash and/or for securities (other than shares
of a class of Common Stock) or other property having a Fair Value as of
the Disposition Date in the aggregate equal to the Fair Value as of the
Disposition Date of the Net Proceeds of such Disposition; or

(II) subject to the last sentence of this Section 2.4(a)(i), if such
Disposition involves substantially all (but not all) of the properties
and assets attributed to the DLT & Storage Systems group, redeem or
exchange as of the Redemption Date determined as provided by Section
2.4(f)(iv) such number of whole shares of DSSG Stock (which may be all,
but not more than all, of such shares outstanding) as have in the
aggregate an average Market Value during the period of ten consecutive
Trading Days beginning on the 26th Trading Day immediately succeeding
the Disposition Date closest to the Fair Value as of the Disposition
Date of the Net Proceeds of such Disposition in consideration for, on a
pro rata basis, cash and/or securities (other than shares of a class of
Common Stock) or other property having a Fair Value as of the
Disposition Date in the aggregate equal to such Fair Value of the Net
Proceeds; or

(2) declare that each outstanding share of DSSG Stock shall be converted
as of the Conversion Date determined as provided by Section 2.4(f)(v) into
a number of fully paid and nonassessable shares of HDDG Stock (or, if HDDG
Stock is not Publicly Traded at such time and shares of another class or
series of common stock of the Corporation (other than DSSG Stock) are then
Publicly Traded, of such other class or series of the common stock of the
Corporation as has the largest Market Capitalization as of the close of
business on the Trading Day immediately preceding the date of the notice of
such conversion required by Section 2.4(f)(v)) equal to 110% of the ratio,
expressed as a decimal fraction rounded to the nearest five decimal places,
of the average Market Value of one share of DSSG Stock over the period of
ten consecutive Trading Days beginning on the 26th Trading Day immediately
succeeding the Disposition Date to the average Market Value of one share of
HDDG Stock (or such other class or series of common stock) over the same
ten Trading Day period; provided, that with respect to any Conversion Date
which is later than the fifth anniversary of the date on which this
Restated Certificate of Incorporation shall have become effective, then
such number of fully paid and nonassessable shares shall equal 100% of such
ratio.

Notwithstanding the foregoing provisions of this Section 2.4(a)(i), the
Corporation shall redeem shares of a class of Common Stock as provided by
Section 2.4(a)(i)(1)(B)(I) or (II) only if the amount to be paid in redemption
of such stock is less than or equal to the DSSG Available Dividend Amount as of
the Redemption Date.

Annex I-4
<PAGE>

(ii) For purposes of this Section 2.4(a): (1) as of any date, "substantially
all of the properties and assets" attributed to the DLT & Storage Systems group
shall mean a portion of such properties and assets (A) that represents at least
80% of the Fair Value of the properties and assets attributed to the DLT &
Storage Systems group as of such date or (B) from which were derived at least
80% of the aggregate revenues for the immediately preceding twelve fiscal
quarterly periods of the Corporation (calculated on a pro forma basis to
include revenues derived from any of such properties and assets acquired during
such period) derived from the properties and assets attributed to the DLT &
Storage Systems group as of such date; (2) in the case of a Disposition of the
properties and assets attributed to the DLT & Storage Systems group in a series
of related transactions, such Disposition shall not be deemed to have been
consummated until the consummation of the last of such transactions; and (3)
the Board of Directors may pay any dividend or redemption price referred to in
Section 2.4(a)(i) in cash, securities (other than shares of a class of Common
Stock) or other property, regardless of the form or nature of the proceeds of
the Disposition.

(iii) The Board of Directors may at any time declare that each outstanding
share of DSSG Stock shall be converted, as of the Conversion Date provided by
Section 2.4(f)(v), into a number of fully paid and nonassessable shares of HDDG
Stock (or, if HDDG Stock is not Publicly Traded at such time and shares of any
other class or series of common stock of the Corporation (other than DSSG
Stock) are then Publicly Traded, of such other class or series of common stock
of the Corporation as has the largest Market Capitalization as of the close of
business on the fifth Trading Day immediately preceding the date of the notice
of conversion required by Section 2.4(f)(v)) equal to 110% of the Market Value
Ratio of the DSSG Stock to HDDG Stock as of the fifth Trading Day prior to the
date of the notice of such conversion required by Section 2.4(f)(v); provided,
that (x) with respect to any Conversion Date which is later than the fifth
anniversary of the date on which this Restated Certificate of Incorporation
shall have become effective, or (y) if a Tax Event has occurred, then such
number of fully paid and nonassessable shares shall equal 100% of such ratio.

(b) Mandatory and Optional Conversion and Redemption of HDDG Stock Other
Than for HDDG Subsidiary Stock. (i) In the event of the Disposition, in one
transaction or a series of related transactions, by the Corporation and/or its
subsidiaries of all or substantially all of the properties and assets
attributed to the Hard Disk Drive group to one or more persons or entities
(other than (w) the Disposition by the Corporation of all or substantially all
of its properties and assets in one transaction or a series of related
transactions in connection with the dissolution, liquidation or winding up of
the Corporation and the distribution of assets to stockholders as referred to
in Section 2.3, (x) the Disposition of the properties and assets attributed to
the Hard Disk Drive group as contemplated by Section 2.4(d) or otherwise to all
holders of shares of HDDG Stock divided among such holders on a pro rata basis
in accordance with the number of shares of HDDG Stock outstanding, (y) to any
person or entity controlled (as determined by the Board of Directors) by the
Corporation or (z) in connection with a Related Business Transaction in respect
of the Hard Disk Drive group), the Corporation shall, on or prior to the 95th
Trading Day after the date of consummation of such Disposition (the
"Disposition Date"), pay a dividend on HDDG Stock or redeem some or all of HDDG
Stock or convert HDDG Stock into DSSG Stock (or another class or series of
common stock of the Corporation), all as provided by the following Sections
2.4(b)(i)(1) and 2.4(b)(i)(2) and, to the extent applicable, by Section 2.4(f),
as the Board of Directors shall have selected among such alternatives:

(1) provided that there are funds of the Corporation legally available
therefor:

(A) pay to the holders of the shares of HDDG Stock a dividend pro
rata in accordance with the number of shares of HDDG Stock held by each
such holder, as the Board of Directors shall have declared subject to
compliance with Section 2.1, in cash and/or in securities (other than a
dividend of shares of a class of Common Stock) or other property having
a Fair Value as of the Disposition Date in the aggregate equal to the
Fair Value as of the Disposition Date of the Net Proceeds of such
Disposition; or

(B) (I) subject to the last sentence of this Section 2.4(b)(i), if
such Disposition involves all (not merely substantially all) of the
properties and assets attributed to the Hard Disk Drive group, redeem
or exchange as of the Redemption Date determined as provided by Section
2.4(f)(iii), all outstanding shares of HDDG Stock in exchange for, on a
pro rata basis, cash and/or for securities (other than

Annex I-5
<PAGE>

shares of a class of Common Stock) or other property having a Fair
Value as of the Disposition Date in the aggregate equal to the Fair
Value as of the Disposition Date of the Net Proceeds of such
Disposition; or

(II) subject to the last sentence of this Section 2.4(b)(i), if such
Disposition involves substantially all (but not all) of the properties
and assets attributed to the Hard Disk Drive group, redeem or exchange
as of the Redemption Date determined as provided by Section 2.4(f)(iv)
such number of whole shares of HDDG Stock (which may be all, but not
more than all, of such shares outstanding) as have in the aggregate an
average Market Value during the period of ten consecutive Trading Days
beginning on the 26th Trading Day immediately succeeding the
Disposition Date closest to the Fair Value as of the Disposition Date
of the Net Proceeds of such Disposition in consideration for, on a pro
rata basis, cash and/or securities (other than shares of a class of
Common Stock) or other property having a Fair Value as of the
Disposition Date in the aggregate equal to such product; or

(2) declare that each outstanding share of HDDG Stock shall be converted
as of the Conversion Date determined as provided by Section 2.4(f)(v) into
a number of fully paid and nonassessable shares of DSSG Stock (or, if DSSG
Stock is not Publicly Traded at such time and shares of another class or
series of common stock of the Corporation (other than HDDG Stock) are then
Publicly Traded, of such other class or series of the common stock of the
Corporation as has the largest Market Capitalization as of the close of
business on the Trading Day immediately preceding the date of the notice of
such conversion required by Section 2.4(f)(v)) equal to 110% of the ratio,
expressed as a decimal fraction rounded to the nearest five decimal places,
of the average Market Value of one share of HDDG Stock over the period of
ten consecutive Trading Days beginning on the 26th Trading Day immediately
succeeding the Disposition Date to the average Market Value of one share of
DSSG Stock (or such other class or series of common stock) over the same
ten Trading Day period; provided, that with respect to any Conversion Date
which is later than the fifth anniversary of the date on which this
Restated Certificate of Incorporation shall have become effective, then
such number of fully paid and nonassessable shares shall equal 100% of such
ratio.

Notwithstanding the foregoing provisions of this Section 2.4(b)(i), the
Corporation shall redeem shares of a class of Common Stock as provided by
Section 2.4(b)(i)(1)(B)(I) or (II) only if the amount to be paid in redemption
of such stock is less than or equal to the HDDG Available Dividend Amount as of
the Redemption Date.

(ii) For purposes of this Section 2.4(b): (1) as of any date, "substantially
all of the properties and assets" attributed to the Hard Disk Drive group shall
mean a portion of such properties and assets (A) that represents at least 80%
of the Fair Value of the properties and assets attributed to the HDDG as of
such date or (B) from which were derived at least 80% of the aggregate revenues
for the immediately preceding twelve fiscal quarterly periods of the
Corporation (calculated on a pro forma basis to include revenues derived from
any of such properties and assets acquired during such period) derived from the
properties and assets attributed to the HDDG as of such date; (2) in the case
of a Disposition of the properties and assets attributed to the HDDG in a
series of related transactions, such Disposition shall not be deemed to have
been consummated until the consummation of the last of such transactions; and
(3) the Board of Directors may pay any dividend or redemption price referred to
in Section 2.4(b)(i) in cash, securities (other than shares of a class of
Common Stock) or other property, regardless of the form or nature of the
proceeds of the Disposition.

(iii) The Board of Directors may at any time declare that each outstanding
share of HDDG Stock shall be converted, as of the Conversion Date provided by
Section 2.4(f)(v), into a number of fully paid and nonassessable shares of DSSG
Stock (or, if DSSG Stock is not Publicly Traded at such time and shares of any
other class or series of common stock of the Corporation (other than HDDG
Stock) are then Publicly Traded, of such other class or series of common stock
of the Corporation as has the largest Market Capitalization as of the close of
business on the fifth Trading Day immediately preceding the date of the notice
of conversion required by Section 2.4(f)(v)) equal to 110% of the Market Value
Ratio of the HDDG Stock to DSSG Stock as of the fifth Trading

Annex I-6
<PAGE>

Day prior to the date of the notice of such conversion required by
Section 2.4(f)(v); provided, that (x) with respect to any Conversion Date which
is later than the fifth anniversary of the date on which this Restated
Certificate of Incorporation shall have become effective, or (y) if a Tax Event
has occurred, then such number of fully paid and nonassessable shares shall
equal 100% of such ratio.

(c) Redemption of DSSG Stock for DSSG Subsidiary Stock. At any time at which
all of the assets and liabilities attributed to the DSSG (and no other assets
or liabilities of the Corporation or any subsidiary thereof) are held directly
or indirectly by one or more wholly-owned subsidiaries of the Corporation
(each, an "DSSG Subsidiary"), the Board of Directors may, provided that there
are funds of the Corporation legally available therefor, redeem all of the
outstanding shares of DSSG Stock, on a Redemption Date of which notice is
delivered in accordance with Section 2.4(f)(vi), in exchange for all of the
shares of common stock of each DSSG Subsidiary as will be outstanding
immediately following such exchange of shares, such shares of common stock of
each DSSG Subsidiary to be delivered to the holders of shares of DSSG Stock on
the Redemption Date either directly or indirectly through the delivery of
shares of another DSSG Subsidiary that owns directly or indirectly all such
shares, and to be divided among the holders of DSSG Stock pro rata in
accordance with the number of shares of DSSG Stock held by each such holder on
such Redemption Date, each of which shares of common stock of such DSSG
Subsidiary shall be, upon such delivery, fully paid and nonassessable.

(d) Redemption of HDDG Stock for HDDG Subsidiary Stock. At any time at which
all of the assets and liabilities attributed to the Hard Disk Drive group(and
no other assets or liabilities of the Corporation or any subsidiary thereof)
are held directly or indirectly by one or more wholly-owned subsidiaries of the
Corporation (each, a "HDDG Subsidiary"), the Board of Directors may, provided
that there are funds of the Corporation legally available therefor, redeem all
of the outstanding shares of HDDG Stock, on a Redemption Date of which notice
is delivered in accordance with Section 2.4(f)(vi), in exchange for all of the
shares of common stock of each HDDG Subsidiary as will be outstanding
immediately following such exchange of shares, such shares of common stock of
each HDD Subsidiary to be delivered to the holders of shares of HDDG Stock on
the Redemption Date either directly or indirectly through the delivery of
shares of another HDD Subsidiary that owns directly or indirectly all such
shares, and to be divided among the holders of HDDG Stock pro rata in
accordance with the number of shares of HDDG Stock held by each such holder on
such Redemption Date, each of which shares of common stock of such HDDG
Subsidiary shall be, upon such delivery, fully paid and nonassessable.

(e) Treatment of Convertible Securities. After any Conversion Date or
Redemption Date on which all outstanding shares of either DSSG Stock or HDDG
Stock are converted or redeemed, any share of such class of Common Stock that
is to be issued on conversion, exchange or exercise of any Convertible
Securities shall, immediately upon such conversion, exchange or exercise and
without any notice from or to, or any other action on the part of, the
Corporation or its Board of Directors or the holder of such Convertible
Security:

(i) in the event the shares of such class of Common Stock outstanding on
such Conversion Date were converted into shares of the other class of
Common Stock (or another class or series of common stock of the
Corporation) pursuant to Section 2.4(a)(i)(2), 2.4(a)(iii), 2.4(b)(i)(2) or
2.4(a)(iii), be converted into the amount of cash and/or the number of
shares of the kind of capital stock and/or other securities or property of
the Corporation that number of shares of such class of Common Stock that
were to be issued upon such conversion, exchange or exercise would have
received had such shares been outstanding on such Conversion Date; or

(ii) in the event the shares of such class of Common Stock outstanding
on such Redemption Date were redeemed pursuant to Section
2.4(a)(i)(1)(B)(I), 2.4(b)(i)(1)(B)(I), 2.4(c) or 2.4(d), be redeemed, to
the extent of funds of the Corporation legally available therefor, for
$0.01 per share in cash for each share of such class of Common Stock that
otherwise would be issued upon such conversion, exchange or exercise.

The provisions of the preceding sentence of this Section 2.4(e) shall not apply
to the extent that other adjustments in respect of such conversion, exchange or
redemption of a class of Common Stock are otherwise made pursuant to the
provisions of such Convertible Securities.

Annex I-7
<PAGE>

(f) Notice and Other Provisions. (i) Not later than the 20th Trading Day
following the consummation of a Disposition referred to in Section 2.4(a)(i)
(in the case of DSSG Stock) or Section 2.4(b)(i) (in the case of HDDG Stock),
the Corporation shall announce publicly by press release (1) the estimated Net
Proceeds of such Disposition, (2) the number of shares outstanding of the class
of Common Stock relating to the Group subject to such Disposition and (3) the
number of shares of such class of Common Stock into or for which Convertible
Securities are then convertible, exchangeable or exercisable and the
conversion, exchange or exercise price thereof. Not earlier than the 36th
Trading Day and not later than the 40th Trading Day following the consummation
of such Disposition, the Corporation shall announce publicly by press release
which of the actions specified in Section 2.4(a)(i) or 2.4(b)(i), as the case
may be, it has irrevocably determined to take in respect of such Disposition.

(ii) If the Corporation determines to pay a dividend pursuant to Section
2.4(a)(i)(1)(A) (in the case of DSSG Stock) or Section 2.4(b)(i)(1)(A) (in the
case of HDDG Stock), the Corporation shall, not later than the 40th Trading Day
following the consummation of the Disposition referred to in such Section,
cause notice to be given to the holders of shares of the class of Common Stock
relating to the Group subject to such Disposition and to each holder of
Convertible Securities that are convertible into or exchangeable or exercisable
for shares of such class of Common Stock (unless alternate provision for such
notice to the holders of such Convertible Securities is made pursuant to the
terms of such Convertible Securities), setting forth (1) the record date for
determining holders entitled to receive such dividend, which shall be not
earlier than the tenth Trading Day and not later than the 20th Trading Day
following the date of such notice, (2) the anticipated payment date of such
dividend (which shall not be more than 95 Trading Days following the
consummation of such Disposition), (3) the type of property to be paid as such
dividend in respect of the outstanding shares of such class of Common Stock,
(4) the Net Proceeds of such Disposition, (5) the number of outstanding shares
of such class of Common Stock and the number of shares of such class of Common
Stock into or for which outstanding Convertible Securities are then
convertible, exchangeable or exercisable and the conversion, exchange or
exercise price thereof and (6) in the case of notice to be given to holders of
Convertible Securities, a statement to the effect that a holder of such
Convertible Securities shall be entitled to receive such dividend only if such
holder properly converts, exchanges or exercises such Convertible Securities on
or prior to the record date referred to in clause (1) of this sentence. Such
notice shall be sent by first-class mail, postage prepaid, to each such holder
at such holder's address as the same appears on the transfer books of the
Corporation on the record date fixed for such notice.

(iii) If the Corporation determines to undertake a redemption pursuant to
Section 2.4(a)(i)(1)(B)(I) (in the case of DSSG Stock) or Section
2.4(b)(i)(1)(B)(I) (in the case of HDDG Stock), the Corporation shall, not
earlier than the 45th Trading Day and not later than the 35th Trading Day prior
to the Redemption Date, cause notice to be given to the holders of shares of
the class of Common Stock relating to the Group subject to the Disposition
referred to in such Section and to each holder of Convertible Securities
convertible into or exchangeable or exercisable for shares of such class of
Common Stock (unless alternate provision for such notice to the holders of such
Convertible Securities is made pursuant to the terms of such Convertible
Securities), setting forth (1) a statement that all shares of such class of
Common Stock outstanding on the Redemption Date shall be redeemed, (2) the
Redemption Date (which shall not be more than 95 Trading Days following the
consummation of such Disposition), (3) the type of property in which the
redemption price for the shares of such class of Common Stock to be redeemed is
to be paid, (4) the Net Proceeds of such Disposition, (5) the place or places
where certificates for shares of such class of Common Stock, properly endorsed
or assigned for transfer (unless the Corporation waives such requirement), are
to be surrendered for delivery of cash and/or securities or other property, (6)
the number of outstanding shares of such class of Common Stock and the number
of shares of such class of Common Stock into or for which outstanding
Convertible Securities are then convertible, exchangeable or exercisable and
the conversion, exchange or exercise price thereof, (7) in the case of notice
to be given to holders of Convertible Securities, a statement to the effect
that a holder of such Convertible Securities shall be entitled to participate
in such redemption only if such holder properly converts, exchanges or
exercises such Convertible Securities on or prior to the Redemption Date
referred to in clause (2) of this sentence and a statement as to what, if
anything, such holder will be entitled to receive pursuant to the terms of such
Convertible Securities or, if applicable, this Section 2.4

Annex I-8
<PAGE>

if such holder thereafter converts, exchanges or exercises such Convertible
Securities and (8) a statement to the effect that, except as otherwise provided
by Section 2.4(f)(ix), dividends on shares of such class of Common Stock shall
cease to be paid as of such Redemption Date. Such notice shall be sent by
first-class mail, postage prepaid, to each such holder at such holder's address
as the same appears on the transfer books of the Corporation on the record date
fixed for such notice.

(iv) If the Corporation determines to undertake a redemption pursuant to
Section 2.4(a)(i)(1)(B)(II) (in the case of DSSG Stock) or Section
2.4(b)(i)(1)(B)(II) (in the case of HDDG Stock), the Corporation shall, not
later than the 40th Trading Day following the consummation of the Disposition
referred to in such Section, cause notice to be given to the holders of shares
of the class of Common Stock relating to the Group subject to such Disposition
and to each holder of Convertible Securities that are convertible into or
exchangeable or exercisable for shares of such class of Common Stock (unless
alternate provision for such notice to the holders of such Convertible
Securities is made pursuant to the terms of such Convertible Securities)
setting forth (1) a date not earlier than the tenth Trading Day and not later
than the 20th Trading Day following the date of such notice on which shares of
such class of Common Stock shall be selected for redemption, (2) the
anticipated Redemption Date (which shall not be more than 95 Trading Days
following the consummation of such Disposition), (3) the type of property in
which the redemption price for the shares to be redeemed is to be paid, (4) the
Net Proceeds of such Disposition, (5) the number of shares of such class of
Common Stock outstanding and the number of shares of such class of Common Stock
into or for which outstanding Convertible Securities are then convertible,
exchangeable or exercisable and the conversion, exchange or exercise price
thereof, (6) in the case of notice to be given to holders of Convertible
Securities, a statement to the effect that a holder of such Convertible
Securities shall be eligible to participate in such selection for redemption
only if such holder properly converts, exchanges or exercises such Convertible
Securities on or prior to the record date referred to in clause (1) of this
sentence, and a statement as to what, if anything, such holder will be entitled
to receive pursuant to the terms of such Convertible Securities or, if
applicable, this Section 2.4 if such holder thereafter converts, exchanges or
exercises such Convertible Securities and (7) a statement that the Corporation
will not be required to register a transfer of any shares of such class of
Common Stock for a period of 15 Trading Days next preceding the date referred
to in clause (1) of this sentence. Promptly following the date referred to in
clause (1) of the preceding sentence, the Corporation shall cause a notice to
be given to each holder of record of shares of such class of Common Stock to be
redeemed setting forth (1) the number of shares of such class of Common Stock
held by such holder to be redeemed, (2) a statement that such shares of such
class of Common Stock shall be redeemed, (3) the Redemption Date, (4) the kind
and per share amount of cash and/or securities or other property to be received
by such holder with respect to each share of such class of Common Stock to be
redeemed, including details as to the calculation thereof, (5) the place or
places where certificates for shares of such class of Common Stock, properly
endorsed or assigned for transfer (unless the Corporation shall waive such
requirement), are to be surrendered for delivery of such cash and/or securities
or other property, (6) if applicable, a statement to the effect that the shares
being redeemed may no longer be transferred on the transfer books of the
Corporation after the Redemption Date and (7) a statement to the effect that,
subject to Section 2.4(f)(ix), dividends on such shares of such class of Common
Stock shall cease to be paid as of the Redemption Date. Such notices shall be
sent by first-class mail, postage prepaid, to each such holder at such holder's
address as the same appears on the transfer books of the Corporation on the
record date fixed for such notice.

(v) If the Corporation determines to convert DSSG Stock into HDDG Stock or
HDDG Stock into DSSG Stock (or, in either case, another class or series of
common stock of the Corporation) pursuant to Section 2.4(a)(i)(2) or
2.4(a)(iii) (in the case of the conversion of DSSG Stock) or Section
2.4(b)(i)(2) or 2.4(b)(iii) (in the case of the conversion of HDDG Stock), the
Corporation shall, not earlier than the 45th Trading Day and not later than the
35th Trading Day prior to the Conversion Date, cause notice to be given to the
holders of shares of the class of Common Stock to be so converted and to each
holder of Convertible Securities that are convertible into or exchangeable or
exercisable for shares of such class of Common Stock (unless alternate
provision for such notice to the holders of such Convertible Securities is made
pursuant to the terms of such Convertible Securities) setting forth (1) a
statement that all outstanding shares of such class of Common Stock shall be
converted, (2) the Conversion Date (which, in the case of a conversion after a
Disposition, shall not be more than 95 Trading Days following the consummation
of such Disposition), (3) the per share number of shares of Common Stock (or

Annex I-9
<PAGE>

another class or series of common stock of the Corporation) to be received with
respect to each share of such class of Common Stock, including details as to
the calculation thereof, (4) the place or places where certificates for shares
of such class of Common Stock, properly endorsed or assigned for transfer
(unless the Corporation shall waive such requirement), are to be surrendered
for delivery of certificates for shares of such class of Common Stock, (5) the
number of outstanding shares of such class of Common Stock and the number of
shares of such class of Common Stock into or for which outstanding Convertible
Securities are then convertible, exchangeable or exercisable and the
conversion, exchange or exercise price thereof, (6) a statement to the effect
that, subject to Section 2.4(f)(ix), dividends on shares of such class of
Common Stock shall cease to be paid as of such Conversion Date and/or
Redemption Date and (7) in the case of notice to holders of such Convertible
Securities, a statement to the effect that a holder of such Convertible
Securities shall be entitled to receive shares of such class of Common Stock
upon such conversion if such holder properly converts, exchanges or exercises
such Convertible Securities on or prior to such Conversion Date and a statement
as to what, if anything, such holder will be entitled to receive pursuant to
the terms of such Convertible Securities or, if applicable, this Section 2.4 if
such holder thereafter converts, exchanges or exercises such Convertible
Securities. Such notice shall be sent by first-class mail, postage prepaid, to
each such holder at such holder's address as the same appears on the transfer
books of the Corporation on the record date fixed for such notice.

(vi) If the Corporation determines to redeem shares of DSSG Stock pursuant
to Section 2.4(c) or HDDG Stock pursuant to Section 2.4(d), the Corporation
shall cause notice to be given to each holder of shares of such class of Common
Stock to be redeemed and to the holders of Convertible Securities that are
convertible into or exchangeable or exercisable for shares of such class of
Common Stock (unless alternate provision for such notice to the holders of such
Convertible Securities is made pursuant to the terms of such Convertible
Securities), setting forth (1) a statement that all shares of such class of
Common Stock outstanding on the Redemption Date shall be redeemed in exchange
for shares of common stock of each of the DSSG Subsidiary or of the HDDG
Subsidiary, as applicable, (2) the Redemption Date, (3) the place or places
where certificates for shares of the class of Common Stock to be redeemed,
properly endorsed or assigned for transfer (unless the Corporation shall waive
such requirement), are to be surrendered for delivery of certificates for
shares of common stock of each of the DSSG Subsidiary or of the HDDG
Subsidiary, as applicable, (4) a statement to the effect that, subject to
Section 2.4(f)(ix), dividends on shares of such class of Common Stock being
redeemed shall cease to be paid as of such Redemption Date, (5) the number of
shares of such class of Common Stock outstanding and the number of shares of
such class of Common Stock into or for which outstanding Convertible Securities
are then convertible, exchangeable or exercisable and the conversion, exchange
or exercise price thereof and (6) in the case of notice to holders of
Convertible Securities, a statement to the effect that a holder of Convertible
Securities shall be entitled to receive shares of common stock of each the DSSG
Subsidiary or the HDDG Subsidiary, as applicable, upon redemption only if such
holder properly converts, exchanges or exercises such Convertible Securities on
or prior to the Redemption Date and a statement as to what, if anything, such
holder will be entitled to receive pursuant to the terms of such Convertible
Securities or, if applicable, this Section 2.4(f), if such holder thereafter
converts, exchanges or exercises such Convertible Securities. Such notice shall
be sent by first-class mail, postage prepaid, not earlier than the 45th Trading
Day and not later than the 35th Trading Day prior to the Redemption Date, to
each such holder at such holder's address as the same appears on the transfer
books of the Corporation on the record date fixed for such notice.

(vii) If less than all of the outstanding shares of either class of Common
Stock are to be redeemed pursuant to Section 2.4(a)(i)(1) (in the case of DSSG
Stock) or Section 2.4(b)(i)(1) (in the case of HDDG Stock), the shares to be
redeemed by the Corporation shall be selected from among the holders of shares
of such class of Common Stock outstanding at the close of business on the
record date for such redemption on a pro rata basis among all such holders or
by lot or by such other method as may be determined by the Board of Directors
to be equitable.

(viii) The Corporation shall not be required to issue or deliver fractional
shares of any capital stock or of any other securities to any holder of either
class of Common Stock upon any conversion, redemption, dividend or other
distribution pursuant to this Section 2.4. If more than one share of either
class of Common Stock shall be held at the same time by the same holder, the
Corporation may aggregate the number of shares of any

Annex I-10
<PAGE>

capital stock that shall be issuable or any other securities or property that
shall be distributable to such holder upon any conversion, redemption, dividend
or other distribution (including any fractional shares). If fractional shares
of any capital stock or of any other securities would be required to be issued
or distributed to the holders of either class of Common Stock, the Corporation
shall, if such fractional shares are not issued or distributed to the holder,
pay cash in respect of such fractional shares in an amount equal to the Fair
Value thereof (without interest).

(ix) No adjustments in respect of dividends shall be made upon the
conversion or redemption of any shares of either class of Common Stock;
provided, however, that if the Conversion Date or Redemption Date, as the case
may be, with respect to any shares of either class of Common Stock shall be
subsequent to the record date for the payment of a dividend or other
distribution thereon or with respect thereto, the holders of such class of
Common Stock at the close of business on such record date shall be entitled to
receive the dividend or other distribution payable on or with respect to such
shares on the date set for payment of such dividend or other distribution, in
each case without interest, notwithstanding the subsequent conversion or
redemption of such shares.

(x) Before any holder of shares of either class of Common Stock shall be
entitled to receive any cash payment and/or certificates or instruments
representing shares of any capital stock and/or other securities or property to
be distributed to such holder with respect to such class of Common Stock
pursuant to this Section 2.4, such holder shall surrender at such place as the
Corporation shall specify certificates for such shares of Common Stock,
properly endorsed or assigned for transfer (unless the Corporation shall waive
such requirement). The Corporation shall as soon as practicable after receipt
of certificates representing such shares of Common Stock deliver to the person
for whose account such shares of Common Stock were so surrendered, or to such
person's nominee or nominees, the cash and/or the certificates or instruments
representing the number of whole shares of the kind of capital stock and/or
other securities or property to which such person shall be entitled as
aforesaid, together with any payment in respect of fractional shares
contemplated by Section 2.4(f)(viii), in each case without interest. If less
than all of the shares of either class of Common Stock represented by any one
certificate are to be redeemed, the Corporation shall issue and deliver a new
certificate for the shares of such class of Common Stock not redeemed.

(xi) From and after any applicable Conversion Date or Redemption Date, as
the case may be, all rights of a holder of shares of either class of Common
Stock that were converted or redeemed shall cease except for the right, upon
surrender of the certificates representing such shares of Common Stock as
required by Section 2.4(f)(x), to receive the cash and/or the certificates or
instruments representing shares of the kind and amount of capital stock and/or
other securities or property for which such shares were converted or redeemed,
together with any payment in respect of fractional shares contemplated by
Section 2.4(f)(viii) (which shall be held by the Corporation for the holder of
such shares of Common Stock that were redeemed until the receipt of
certificates representing such shares of Common Stock as provided in Section
2.4(f)(x)) and rights to dividends as provided in Section 2.4(f)(ix), in each
case without interest. No holder of a certificate that immediately prior to the
applicable Conversion Date or Redemption Date represented shares of a class of
Common Stock shall be entitled to receive any dividend or other distribution or
interest payment with respect to shares of any kind of capital stock or other
security or instrument for which such class of Common Stock was converted or
redeemed until the surrender as required by this Section 2.4 of such
certificate in exchange for a certificate or certificates or instrument or
instruments representing such capital stock or other security. Subject to
applicable escheat and similar laws, upon such surrender, there shall be paid
to the holder the amount of any dividends or other distributions (without
interest) which theretofore became payable on any class or series of capital
stock of the Corporation as of a record date after the Conversion Date or
Redemption Date, but that were not paid by reason of the foregoing, with
respect to the number of whole shares of the kind of capital stock represented
by the certificate or certificates issued upon such surrender. From and after a
Conversion Date or Redemption Date, the Corporation shall, however, be entitled
to treat the certificates for a class of Common Stock that have not yet been
surrendered for conversion or redemption as evidencing the ownership of the
number of whole shares of the kind or kinds of capital stock of the Corporation
for which the shares of such class of Common Stock represented by such
certificates shall have been converted or redeemed, notwithstanding the failure
to surrender such certificates.

Annex I-11
<PAGE>

(xii) The Corporation shall pay any and all documentary, stamp or similar
issue or transfer taxes that may be payable in respect of the issuance or
delivery of any shares of capital stock and/or other securities upon conversion
or redemption of shares of either class of Common Stock pursuant to this
Section 2.4. The Corporation shall not, however, be required to pay any tax
that may be payable in respect of any transfer involved in the issuance or
delivery of any shares of capital stock and/or other securities in a name other
than that in which the shares of such class of Common Stock so converted or
redeemed were registered, and no such issuance or delivery shall be made unless
and until the person requesting such issuance or delivery has paid to the
Corporation the amount of any such tax or has established to the satisfaction
of the Corporation that such tax has been paid.

(xiii) Neither the failure to mail any notice required by this Section 2.4
to any particular holder of a class of Common Stock or of Convertible
Securities nor any defect therein shall affect the sufficiency thereof with
respect to any other holder of outstanding shares of a class of Common Stock or
of Convertible Securities or the validity of any such conversion or redemption.

(xiv) The Board of Directors may establish such rules and requirements to
facilitate the effectuation of the transactions contemplated by this Section
2.4 as the Board of Directors shall determine to be appropriate.

Section 2.5 Application of the Provisions of Article IV. (a) Certain
Determinations by the Board of Directors. The Board of Directors shall make
such determinations with respect to the businesses, assets, properties and
liabilities to be attributed to the Groups, the application of the provisions
of the Certificate of Incorporation to transactions to be engaged in by the
Corporation and the voting powers, preferences and relative, participating,
optional and other special rights of the holders of either class of Common
Stock, and the qualifications and restrictions thereon, provided by the
Certificate of Incorporation as may be or become necessary or appropriate to
the exercise of such powers, preferences and relative, participating, optional
and other special rights, including, without limiting the foregoing, the
determinations referred to in this Section 2.5. A record of any such
determination shall be filed with the records of the actions of the Board of
Directors.

(i) Upon any acquisition by the Corporation or its subsidiaries of any
assets or business, or any assumption of liabilities, outside of the
ordinary course of business of the DLT & Storage Systems group or the Hard
Disk Drive group, as the case may be, the Board of Directors shall
determine whether such assets, business and liabilities (or an interest
therein) shall be for the benefit of the DLT & Storage Systems group or the
Hard Disk Drive group or that an interest therein shall be partly for the
benefit of the DLT & Storage Systems group and partly for the benefit of
the Hard Disk Drive group and, accordingly, shall be attributed to the DLT
& Storage Systems group or the Hard Disk Drive group, or partly to each, in
accordance with Section 2.6(e) or 2.6(j), as the case may be.

(ii) Upon any issuance of any shares of any class or series of preferred
stock of the Corporation, the Board of Directors shall attribute, based on
the use of proceeds of such issuance of shares of preferred stock in the
business of the DLT & Storage Systems group or the Hard Disk Drive group
and any other relevant factors, the shares so issued entirely to the DLT &
Storage Systems group or entirely to the Hard Disk Drive group or partly to
the DLT & Storage Systems group and partly to the Hard Disk Drive group in
such proportion as the Board of Directors shall determine.

(iii) Upon any redemption or repurchase by the Corporation or any
subsidiary thereof of shares of preferred stock of any class or series or
of other securities or debt obligations of the Corporation, the Board of
Directors shall determine, based on the property used to redeem or purchase
such shares, other securities or debt obligations, which, if any, of such
shares, other securities or debt obligations redeemed or repurchased shall
be attributed to the DLT & Storage Systems group and which, if any, of such
shares, other securities or debt obligations shall be attributed to the
Hard Disk Drive group and, accordingly, how many of the shares of such
class or series of preferred stock or of such other securities, or how much
of such debt obligations, that remain outstanding, if any, are thereafter
attributed to the DLT & Storage Systems group or the Hard Disk Drive group.

Annex I-12
<PAGE>

(b) Certain Determinations Not Required. Notwithstanding the foregoing
provisions of this Section 2.5, the provisions of Section 2.6(e) or 2.6(j) or
any other provision of the Certificate of Incorporation, at any time when there
are not outstanding both (i) one or more shares of DSSG Stock or Convertible
Securities convertible into or exchangeable or exercisable for DSSG Stock and
(ii) one or more shares of HDDG Stock or Convertible Securities convertible
into or exchangeable or exercisable for HDDG Stock, the Corporation need not
(A) attribute any of the assets or liabilities of the Corporation or any of its
subsidiaries to the DLT & Storage Systems group or the Hard Disk Drive group or
(B) make any determination required in connection therewith, nor shall the
Board of Directors be required to make any of the determinations otherwise
required by this Article, and in such circumstances the holders of the shares
of DSSG Stock and HDDG Stock outstanding, as the case may be, shall (unless
otherwise specifically provided by the Certificate of Incorporation) be
entitled to all the voting powers, preferences and relative, participating,
optional and other special rights of both classes of Common Stock without
differentiation between the DSSG Stock and the HDDG Stock.

(c) Board Determinations Binding. Subject to applicable law, any
determinations made in good faith by the Board of Directors of the Corporation
under any provision of this Section 2.5 or otherwise in furtherance of the
application of this Section 2 shall be final and binding on all stockholders.

Section 2.6 Certain Definitions. As used in the Certificate of
Incorporation, the following terms shall have the following meanings (with
terms defined in the singular having comparable meaning when used in the plural
and vice versa), unless the context otherwise requires. As used in this Section
2.6, a "contribution" or "transfer" of assets or properties from one Group to
another shall refer to the reattribution of such assets or properties from the
contributing or transferring Group to the other Group and correlative phrases
shall have correlative meanings.

(a) Available Dividend Amount shall mean, as the context requires, a
reference to the DSSG Available Dividend Amount or the HDDG Available Dividend
Amount.

(b) Conversion Date shall mean the date fixed by the Board of Directors as
the effective date for the conversion of shares of DSSG Stock into shares of
HDDG Stock (or another class or series of common stock of the Corporation) or
of shares of HDDG Stock into shares of DSSG Stock (or another class or series
of common stock of the Corporation), as the case may be, as shall be set forth
in the notice to holders of shares of the class of Common Stock subject to such
conversion and to holders of any Convertible Securities that are convertible
into or exchangeable or exercisable for shares of the class of Common Stock
subject to such conversion required pursuant to Section 2.4(f)(v).

(c) Convertible Securities shall mean, as of any date, any securities of the
Corporation or of any subsidiary thereof (other than shares of a class of
Common Stock), including warrants and options, outstanding at such time that by
their terms are convertible into or exchangeable or exercisable for or evidence
the right to acquire any shares of either class of Common Stock, whether
convertible, exchangeable or exercisable at such time or a later time or only
upon the occurrence of certain events; provided that securities shall only be
Convertible Securities in respect of the number of shares of Common Stock into
or for which such securities are then convertible, exchangeable or exercisable.

(d) Disposition shall mean a sale, transfer, assignment or other disposition
(whether by merger, consolidation, sale or contribution of assets or stock or
otherwise) of properties or assets (including stock, other securities and
goodwill).

(e) The DLT & Storage Systems group shall mean, as of any date:

(i) all businesses, assets, properties and liabilities of the
Corporation and its subsidiaries attributed by the Board of Directors to
the DLT & Storage Systems group;

(ii) all businesses, assets, properties and liabilities transferred to
the DLT & Storage Systems group from the Hard Disk Drive group pursuant to
transactions in the ordinary course of business of the DLT &

Annex I-13
<PAGE>

Storage Systems group and the Hard Disk Drive group or otherwise as the
Board of Directors may have directed as permitted by the Certificate of
Incorporation; and

(iii) the interest of the Corporation or any of its subsidiaries in any
business or asset acquired and any liabilities assumed by the Corporation
or any of its subsidiaries outside of the ordinary course of business and
attributed to the DLT & Storage Systems group, as determined by the Board
of Directors as contemplated by Section 2.5(a)(i);

provided that from and after any transfer of any assets or properties from the
DLT & Storage Systems group to the Hard Disk Drive group, the DLT & Storage
Systems group shall no longer include such assets or properties so transferred.

(f) The DSSG Available Dividend Amount shall mean, on any date, either:

(x) (i) the amount equal to the fair market value of the total assets
attributed to the DLT & Storage Systems group less the total liabilities
attributed to the DLT & Storage Systems group (provided that preferred
stock shall not be treated as a liability), in each case, as of such date
and determined on a basis consistent with that applied in determining the
DLT & Storage Systems group Net Income (Loss), minus (ii) the aggregate par
value of, or any greater amount determined in accordance with applicable
law to be capital in respect of, all outstanding shares of DSSG Stock and
each class or series of preferred stock attributed in accordance with the
Certificate of Incorporation to the DLT & Storage Systems group, or

(y) in case the total amount calculated pursuant to clause (i) above is
not a positive number, an amount equal to the DSSG Net Income (Loss) (if
positive) for the fiscal year in which the dividend is declared and/or the
preceding fiscal year.

Notwithstanding the foregoing provisions of this Section 2.6(f), and consistent
with Section 2.5(c), at any time when there are not outstanding both (i) one or
more shares of DSSG Stock or Convertible Securities convertible into or
exchangeable or exercisable for DSSG Stock and (ii) one or more shares of HDDG
Stock or Convertible Securities convertible into or exchangeable or exercisable
for HDDG Stock, the "Available Dividend Amount," on any calculation date during
such time period, with respect to the DSSG Stock or the HDDG Stock, as the case
may be (depending on which of such classes of Common Stock or Convertible
Securities convertible into or exchangeable or exercisable for such class of
Common Stock is outstanding), shall mean the amount available for the payment
of dividends on such Common Stock in accordance with law.

(g) The DSSG Net Income (Loss) shall mean, for any period through any date,
(i) the net income or loss of the DSSG for such period determined in accordance
with generally accepted accounting principles in effect at such time,
reflecting income and expense of the Corporation attributed to the DLT &
Storage Systems group on a basis substantially consistent with attributions of
income and expense made in the calculation of the HDDG Net Income (Loss),
including, without limitation, corporate administrative costs, net interest and
other financial costs and income taxes.

(h) Fair Value shall mean, (i) in the case of equity securities or debt
securities of a class or series that has previously been Publicly Traded for a
period of at least 15 months, the Market Value thereof (if such Market Value,
as so defined, can be determined); (ii) in the case of an equity security or
debt security that has not been Publicly Traded for at least 15 months or the
Market Value of which cannot be determined, the fair value per share of stock
or per other unit of such security, on a fully distributed basis, as determined
by an independent investment banking firm experienced in the valuation of
securities selected in good faith by the Board of Directors, or, if no such
investment banking firm is, as determined in the good faith judgment of the
Board of Directors, available to make such determination, in good faith by the
Board of Directors; (iii) in the case of cash denominated in U.S. dollars, the
face amount thereof and in the case of cash denominated in other than U.S.
dollars, the face amount thereof converted into U.S. dollars at the rate
published in The Wall Street Journal on the date for the determination of Fair
Value or, if not so published, at such rate as shall be determined in good
faith by the Board of Directors based upon such information as the Board of
Directors shall

Annex I-14
<PAGE>

in good faith determine to be appropriate; and (iv) in the case of property
other than securities or cash, the "Fair Value" thereof shall be determined in
good faith by the Board of Directors based upon such appraisals or valuation
reports of such independent experts as the Board of Directors shall in good
faith determine to be appropriate. Any such determination of Fair Value shall
be described in a statement filed with the records of the actions of the Board
of Directors.

(i) Group shall mean, as of any date, the DLT & Storage Systems group or the
Hard Disk Drive group, as the case may be.

(j) The Hard Disk Drive group shall mean, as of any date:

(i) the interest of the Corporation or any of its subsidiaries on such
date in all of the businesses, assets, properties and liabilities of the
Corporation or any of its subsidiaries (and any successor companies), other
than any businesses, assets, properties and liabilities attributed in
accordance with this Article to the DLT & Storage Systems group;

(ii) all businesses, assets, properties and liabilities transferred to
the Hard Disk Drive group from the DLT & Storage Systems group pursuant to
transactions in the ordinary course of business of the Hard Disk Drive
group and the DLT & Storage Systems group or otherwise as the Board of
Directors may have directed as permitted by the Certificate of
Incorporation; and

(iii) the interest of the Corporation or any of its subsidiaries in any
business or asset acquired and any liabilities assumed by the Corporation
or any of its subsidiaries outside of the ordinary course of business and
attributed to the Hard Disk Drive group, as determined by the Board of
Directors as contemplated by Section 2.5(a)(i);

provided that from and after any transfer of any assets or properties from the
Hard Disk Drive group to the DLT & Storage Systems group, the Hard Disk Drive
group shall no longer include such assets or properties so transferred.

(k) The HDDG Available Dividend Amount shall mean, on any date, either:

(x) (i) an amount equal to the fair market value of the total assets
attributed to the Hard Disk Drive group less the total liabilities
attributed to the Hard Disk Drive group (provided that preferred stock
shall not be treated as a liability), in each case, as of such date and
determined on a basis consistent with that applied in determining the HDDG
Net Income (Loss), minus (ii) the aggregate par value of, or any greater
amount determined in accordance with applicable law to be capital in
respect of, all outstanding shares of HDDG Stock and each class or series
of preferred stock attributed in accordance with the Certificate of
Incorporation to the Hard Disk Drive group, or

(y) in case the total amount calculated pursuant to clause (i) above is
not a positive number, an amount equal to the HDDG Net Income (Loss) (if
positive) for the fiscal year in which the dividend is declared and/or the
preceding fiscal year.

Notwithstanding the foregoing provisions of this Section 2.6(k), and consistent
with Section 2.5(c), at any time when there are not outstanding both (i) one or
more shares of DSSG Stock or Convertible Securities convertible into or
exchangeable or exercisable for DSSG Stock and (ii) one or more shares of HDDG
Stock or Convertible Securities convertible into or exchangeable or exercisable
for HDDG Stock, the "Available Dividend Amount," on any calculation date during
such time period, with respect to the DSSG Stock or the HDDG Stock, as the case
may be (depending on which of such classes of Common Stock or Convertible
Securities convertible into or exchangeable or exercisable for such class of
Common Stock is outstanding), shall mean the amount available for the payment
of dividends on such Common Stock in accordance with law.

(l) The HDDG Net Income (Loss) shall mean, for any period through any date,
(i) the net income or loss of the Hard Disk Drive group for such period
determined in accordance with generally accepted accounting

Annex I-15
<PAGE>

principles in effect at such time, reflecting income and expense of the
Corporation attributed to the Hard Disk Drive group on a basis substantially
consistent with attributions of income and expense made in the calculation of
the DLT & Storage Systems group Net Income (Loss), including, without
limitation, corporate administrative costs, net interest and other financial
costs and income taxes.

(m) Market Capitalization of any class or series of capital stock on any
date shall mean the product of (i) the Market Value of one share of such class
or series of capital stock on such date and (ii) the number of shares of such
class or series of capital stock outstanding on such date.

(n) Market Value of a share of any class or series of capital stock of the
Corporation on any day shall mean the average of the high and low reported
sales prices regular way of a share of such class or series on such Trading Day
or, in case no such reported sale takes place on such Trading Day, the average
of the reported closing bid and asked prices regular way of a share of such
class or series on such Trading Day, in either case as reported on the New York
Stock Exchange or, if the shares of such class or series are not quoted on the
New York Stock Exchange on such Trading Day, on the principal national
securities exchange in the United States on which the shares of such class or
series are listed or admitted to trading or, if not listed or admitted to
trading on any national securities exchange on such Trading Day, the average of
the closing bid and asked prices of a share of such class or series in the
over-the-counter market on such Trading Day as furnished by any New York Stock
Exchange member firm selected from time to time by the Corporation or, if such
closing bid and asked prices are not made available by any such New York Stock
Exchange member firm on such Trading Day, the Fair Value of a share of such
class or series as set forth in clause (ii) of the definition of Fair Value;
provided that, for purposes of determining the "Market Value" of a share of any
class or series of capital stock for any period, (i) the "Market Value" of a
share of capital stock on any day prior to any "ex-dividend" date or any
similar date occurring during such period for any dividend or distribution
(other than any dividend or distribution contemplated by clause (ii)(B) of this
sentence) paid or to be paid with respect to such capital stock shall be
reduced by the Fair Value of the per share amount of such dividend or
distribution and (ii) the "Market Value" of any share of capital stock on any
day prior to (A) the effective date of any subdivision (by stock split or
otherwise) or combination (by reverse stock split or otherwise) of outstanding
shares of such class or series of capital stock occurring during such period or
(B) any "ex-dividend" date or any similar date occurring during such period for
any dividend or distribution with respect to such capital stock to be made in
shares of such class or series of capital stock or Convertible Securities that
are convertible, exchangeable or exercisable for such class or series of
capital stock shall be appropriately adjusted, as determined by the Board of
Directors, to reflect such subdivision, combination, dividend or distribution.

(o) Market Value Ratio of HDDG Stock to DSSG Stock as of any date shall mean
the fraction (which may be greater or less than 1/1), expressed as a decimal
(rounded to the nearest five decimal places), of a share of DSSG Stock (or
another class or series of common stock of the Corporation, if so provided by
Section 2.4(b)(iii) because DSSG Stock is not then Publicly Traded) to be
issued in respect of a share of HDDG Stock upon a conversion of HDDG Stock into
DSSG Stock (or another class or series of common stock of the Corporation) in
accordance with Section 2.4(b)(iii) the numerator of which shall be the average
Market Value of one share of HDDG Stock during the 20-Trading Day period ending
on such date and the denominator of which shall be the average Market Value of
one share of DSSG Stock (or such other common stock) during the 20-Trading Day
period ending on such date.

(p) Market Value Ratio of DSSG Stock to HDDG Stock as of any date shall mean
the fraction (which may be greater or less than 1/1), expressed as a decimal
(rounded to the nearest five decimal places), of a share of HDDG Stock (or
another class or series of common stock of the Corporation, if so provided by
Section 2.4(a)(iii) because HDDG Stock is not then Publicly Traded) to be
issued in respect of a share of DSSG Stock upon a conversion of DSSG Stock into
HDDG Stock (or another class or series of common stock of the Corporation) in
accordance with Section 2.4(a)(iii), the numerator of which shall be the
average Market Value of one share of DSSG Stock during the 20-Trading Day
period ending on such date and the denominator of

Annex I-16
<PAGE>

which shall be the average Market Value of one share of HDDG Stock (or such
other common stock) during the 20-Trading Day period ending on such date.

(q) Net Proceeds shall mean, as of any date with respect to any Disposition
of any of the properties and assets attributed to the DLT & Storage Systems
group or the Hard Disk Drive group, as the case may be, an amount, if any,
equal to what remains of the gross proceeds of such Disposition after payment
of, or reasonable provision is made as determined by the Board of Directors
for, (i) any taxes payable by the Corporation (or which would have been payable
but for the utilization of tax benefits attributable to the other Group) in
respect of such Disposition or in respect of any resulting dividend or
redemption pursuant to Section 2.4(a)(i)(1)(A), 2.4(a)(i)(1)(B),
2.4(b)(i)(1)(A) or 2.4(b)(i)(1)(B), (ii) any transaction costs, including,
without limitation, any legal, investment banking and accounting fees and
expenses and (iii) any liabilities (contingent or otherwise) of or attributed
to such Group, including, without limitation, any liabilities for deferred
taxes or any indemnity or guarantee obligations of the Corporation incurred in
connection with the Disposition or otherwise, and any liabilities for future
purchase price adjustments and any preferential amounts plus any accumulated
and unpaid dividends in respect of the preferred stock attributed to such
Group. For purposes of this definition, any properties and assets attributed to
the Group, the properties and assets of which are subject to such Disposition,
remaining after such Disposition shall constitute Areasonable provision for
such amount of taxes, costs and liabilities (contingent or otherwise) as the
Board of Directors determines can be expected to be supported by such
properties and assets.

(r) Publicly Traded with respect to any security shall mean that such
security is (i) registered under Section 12 of the Securities Exchange Act of
1934, as amended (or any successor provision of law), and (ii) listed for
trading on the New York Stock Exchange or the American Stock Exchange (or any
national securities exchange registered under Section 7 of the Securities
Exchange Act of 1934, as amended (or any successor provision of law), that is
the successor to either such exchange) or listed on The New York Stock Exchange
(or any successor market system).

(s) Redemption Date shall mean the date fixed by the Board of Directors as
the effective date for a redemption of shares of either class of Common Stock,
as set forth in a notice to holders thereof required pursuant to Section
2.4(f)(iii), (iv), (v) or (vi).

(t) Related Business Transaction means any Disposition of all or
substantially all the properties and assets attributed to the DLT & Storage
Systems group or the Hard Disk Drive group, as the case may be, in a
transaction or series of related transactions that result in the Corporation
receiving in consideration of such properties and assets primarily equity
securities (including, without limitation, capital stock, debt securities
convertible into or exchangeable for equity securities or interests in a
general or limited partnership or limited liability company, without regard to
the voting power or other management or governance rights associated therewith)
of any entity which (i) acquires such properties or assets or succeeds (by
merger, formation of a joint venture or otherwise) to the business conducted
with such properties or assets or controls such acquiror or successor and (ii)
is engaged primarily or proposes to engage primarily in one or more businesses
similar or complementary to the businesses conducted by such Group prior to
such Disposition, as determined by the Board of Directors.

(u) Tax Event shall mean the receipt by the Corporation of an opinion of a
tax advisor to the Corporation experienced in such matters, who shall not be an
officer or employee of the Corporation or any of its affiliates, that, as a
result of any amendment to, or change in, the laws (or any regulations
thereunder) of the United States or any political subdivision or taxing
authority thereof or therein (including any announced proposed change by an
applicable legislative committee or the chair thereof in such laws or by an
administrative agency in such regulations), or as a result of any official or
administrative pronouncement or action or judicial decision interpreting or
applying such laws or regulations, it is more likely than not that for United
States federal income tax purposes (i) the Corporation or its stockholders is
or, at any time in the future, will be subject to tax upon the issuance of
shares of either DSSG Stock or HDDG Stock or (ii) either DSSG Stock or HDDG
Stock is not or, at any time in the future, will not be treated solely as stock
of the Corporation. For purposes of

Annex I-17
<PAGE>

rendering such opinion, the tax advisor shall assume that any legislative or
administrative proposals will be enacted or adopted as proposed.

(v) Trading Day shall mean each weekday other than any day on which the
relevant class of common stock of the Corporation is not traded on any national
securities exchange or listed on The New York Stock Exchange or in the over-
the-counter market.

Section 3. Preferred Stock. The Preferred Stock may be issued from time to
time in one or more series, each with such distinctive designation as may be
stated in the Certificate of Incorporation or in any amendment hereto, or in a
resolution or resolutions providing for the issue of such stock from time to
time adopted by the Board of Directors. The resolution or resolutions providing
for the issue of shares of a particular series shall fix, subject to applicable
laws and the provisions of the Certificate of Incorporation, for each such
series the number of shares constituting such series and the designation and
the voting powers, preferences and relative, participating, optional or other
special rights and the qualifications, limitations or restrictions thereof,
including, without limiting the generality of the foregoing, such provisions as
may be desired concerning voting, redemption, dividends, dissolution or the
distribution of assets, conversion or exchange, and such other subjects or
matters as may be fixed by the Board of Directors under the DGCL.

The Board of Directors is further authorized to increase or decrease the
number of shares of any series, the number of which was fixed by it, subsequent
to the issue of shares of such series then outstanding, subject to the
limitations and restrictions stated in the resolution or resolutions of the
Board of Directors originally fixing the number of shares of such series. If
the number of shares of any series is so decreased, then the shares
constituting such decreases shall resume the status which they had prior to the
adoption of the resolution fixing the number of shares of such series.

ARTICLE V.

DURATION

The Corporation is to have perpetual existence.

ARTICLE VI.

BOARD OF DIRECTORS

Section 1. Number of Directors. The number of directors which constitute the
whole Board of Directors shall be as specified in the By-laws of the
Corporation.

Section 2. Powers of the Board of Directors. In furtherance and not in
limitation of the powers conferred by statute, the Board of Directors is
expressly authorized to make, alter, amend or repeal the By-laws of the
Corporation.

ARTICLE VII.

CUMULATIVE VOTING

Subject to Article X hereof, at all elections of directors of the
Corporation, each holder of stock or of any class or classes or of a series or
series thereof shall be entitled to as many votes as shall equal the number of
votes which (except for this provision as to cumulative voting) he would be
entitled to cast for the election of directors with respect to his shares of
stock multiplied by the number of directors to be elected, and he may cast all
of such votes for a single director or may distribute them among the number of
directors to be voted for, or for any two or more of them as he may see fit.

Annex I-18
<PAGE>

ARTICLE VIII.

MEETINGS OF STOCKHOLDERS

Meetings of stockholders may be held within or without the State of
Delaware, as the By-laws may provide. The books of the Corporation may be kept
(subject to any provision contained in the Statutes) outside the State of
Delaware at such place or places as may be designated from time to time by the
Board of Directors or in the By-laws of the Corporation.

ARTICLE IX.

LIMITATION ON LIABILITY OF DIRECTORS

To the fullest extent permitted by the DGCL as the same exists or as may
hereafter be amended, a director of the Corporation shall not be personally
liable to the Corporation or its stockholders for monetary damages for breach
of fiduciary duty as a director. Neither any amendment nor repeal of this
Article IX shall, nor the adoption of any provision of this Certificate of
Incorporation inconsistent with this Article IX, shall eliminate or reduce the
effect of this Article IX in respect of any matter occurring, or any cause of
action, suit or claim that, but for this Article IX, would accrue or arise,
prior to such amendment, repeal or adoption of an inconsistent provision.

ARTICLE X.

ADVANCE NOTICE

Advance notice of new business and stockholder nominations for, and
cumulative voting in, the election of directors shall be given in the manner
and to the extent provided in the By-laws of the Corporation.

ARTICLE XI.

AMENDMENT OF CERTIFICATE OF INCORPORATION

The Corporation reserves the right to amend, alter, change or repeal any
provision contained in the Certificate of Incorporation in the manner now or
hereafter prescribed by statute and all rights conferred upon stockholders
herein are granted subject to this reservation.

IN WITNESS WHEREOF, this Restated Certificate of Incorporation which
restates, integrates and amends the provisions of the certificate of
incorporation of the Corporation, and which has been duly adopted by in
accordance with the provisions of Sections 242 and 245 of the Delaware General
Corporation Law, has been executed by , its , this day
of , 1999.

Quantum Corporation

By: _________________________________
Name:
Title:

Annex I-19
<PAGE>

ANNEX II

QUANTUM CORPORATION

EMPLOYEE STOCK PURCHASE PLAN

As Amended , 1999

The following constitute the provisions of the Employee Stock Purchase Plan
(herein called the "Plan") of Quantum Corporation (herein called the
"Company").

1. Purpose. The purpose of the Plan is to provide employees of the Company
and its Designated Subsidiaries with an opportunity to purchase Common Stock of
the Company through accumulated payroll deductions. It is the intention of the
Company to have the Plan qualify as an "Employee Stock Purchase Plan" under
Section 423 of the Internal Revenue Code of 1986, as amended. The provisions of
the Plan shall, accordingly, be construed so as to extend and limit
participation in a manner consistent with the requirements of that section of
the Code.

2. Definitions.

(a) "Board" shall mean the Board of Directors of the Company.

(b) "Code" shall mean the Internal Revenue Code of 1986, as amended.

(d) "Company" shall mean Quantum Corporation, a Delaware corporation.

(e) "Compensation" shall mean all regular straight time earnings, payments
for overtime, shift premium, incentive compensation, incentive payments,
bonuses and commissions (except to the extent that the exclusion of any such
items for all participants is specifically directed by the Board or its
committee).

(f) "Continuous Status as an Employee" shall mean the absence of any
interruption or termination of service as an Employee. Continuous Status as an
Employee shall not be considered interrupted in the case of: (i) a leave of
absence agreed to in writing by the Company, provided that such leave is for a
period of not more than 90 days or re-employment upon the expiration of such
leave is guaranteed by contract or statute; or (ii) notification by the Company
of termination under a reduction-in-force. Termination in the case of a
reduction-in-force shall be considered to have occurred at the end of the
employee's continuation period.

(g) "Designated Subsidiaries" shall mean the Subsidiaries which have been
designated by the Board from time to time in its sole discretion as eligible to
participate in the Plan.

(h) "Employee" means any person, including an officer, who is customarily
employed for at least twenty (20) hours per week by the Company or one of its
Designated Subsidiaries.

(i) "Enrollment Date" shall mean the first day of each Offering Period.

(j) "Exercise Date" shall mean the date one day prior to the date six
months, twelve months, eighteen months, or twenty-four months after the
Enrollment Date of an Offering Period; provided, however, that the exercise
date under the June 1991 and December 1991 offering periods shall mean the date
one day prior to the date seven and one-half (7 1/2) months, thirteen and one-
half (13 1/2) months, nineteen and one-half (19 1/2) months, or twenty-five and
one-half (25 1/2) months after the enrollment date of such offering periods.

(k) "Exercise Period" shall mean a period commencing on an Enrollment Date
or on the day after an Exercise Date and terminating one day prior to the date
six (6) months later; provided, however, that for the offering periods
beginning June 1991 and December 1991 , the initial exercise period under such
offering periods shall be the period commencing on the Enrollment Date and
terminating one day prior to the date seven and one-half (7 1/2) months later.

Annex II-1
<PAGE>

(l) "Offering Period" shall mean a period of twenty-four (24) months
consisting of four six-month Exercise Periods, or as otherwise set forth in
Section 4 hereof; provided, however, that the offering periods commencing in
June 1991 and December 1991 shall be for a period of twenty-five and one-half
(25 1/2) months consisting of one seven and one-half (7 1/2) exercise period
and three six (6) month exercise periods during which options granted pursuant
to the Plan may be exercised or as otherwise set forth in Section 4 hereof.

(m) "Plan" shall mean this Employee Stock Purchase Plan.

(n) "Subsidiary" shall mean a corporation, domestic or foreign, of which not
less than 50% of the voting shares are held by the Company or a Subsidiary,
whether or not such corporation now exists or is hereafter organized or
acquired by the Company or a Subsidiary.

3. Eligibility.

(a) Any Employee (as defined in paragraph 2) who shall be employed by the
Company on the date his participation in the Plan is effective shall be
eligible to participate in the Plan, subject to limitations imposed by Section
423 (b) of the Code.

(b) Any provisions of the Plan to the contrary notwithstanding, no Employee
shall be granted an option under the Plan (i) if, immediately, after the grant,
such Employee (or any other person whose stock would be attributed to such
Employee pursuant to Section 425 (d) of the Code) would own shares and/or hold
outstanding options to purchase stock possessing five percent (5%) or more of
the total combined voting power or value of all classes of shares of the
Company or of any subsidiary of the Company, or (ii) which permits his rights
to purchase shares under all employee stock plans of the Company and its
subsidiaries to accrue at a rate which exceeds Twenty-Five Thousand Dollars
($25,000) of the fair market value of the shares (determined at the time such
option is granted) for each calendar year in which such stock option is
outstanding at any time.

4. Offering Dates. The Plan shall be implemented by consecutive Offering
Periods with a new Offering Period commencing on or about January 25 and July
25 of each year, and shall continue thereafter until terminated in accordance
with paragraph 20 or 24 hereof; provided, however, that the Offering Period
which began in June 1991 and the Offering Period planned to begin in December
1991 shall continue in effect for twenty-five and one-half (25 1/2) months and
shall run concurrently with January and July Offering Periods until the
respective twenty-five and one-half month term for the June and December 1991
Offering Periods has expired. Thereafter, Offering Periods shall begin only in
January and July. The Board of Directors of the Company shall have the power to
change the duration of Offering Periods and Exercise Periods with respect to
future offerings without stockholder approval if such change is announced at
least fifteen (15) days prior to the scheduled beginning of the first Offering
Period to be affected. In no event shall the duration of an Offering Period
exceed twenty-seven (27) months. Notwithstanding the foregoing, no offers
hereunder shall be made until compliance with all applicable securities law has
been obtained.

5. Participation.

(a) An eligible Employee may become a participant in the Plan by completing
a subscription agreement authorizing payroll deduction on the form provided by
the Company and filing it with the Company's payroll office prior to the
applicable Enrollment Date, unless a later time for filing the subscription
agreement is set by the Board for all eligible Employees with respect to a
given Offering Period.

(b) Payroll deductions for a participant shall commence on the first payroll
following the Enrollment Date and shall end on the last payroll date in the
Offering Period to which such authorization is applicable, unless sooner
terminated by the participant as provided in paragraph 11.

6. Payroll Deductions.

(a) At the time a participant files his subscription agreement, he shall
elect to have payroll deductions made on each payday during the Offering Period
at a rate not exceeding ten percent (10%) of the Compensation which he received
on such payday, and the aggregate of such payroll deductions pursuant to the

Annex II-2
<PAGE>

Plan during the Offering Period shall not exceed ten percent (10%) of his
aggregate Compensation during said Offering Period.

(b) All payroll deductions made for a participant shall be credited to his
account under the Plan. A participant may not make any additional payments into
such account.

(c) A participant may discontinue participation in the Plan as provided in
paragraph 11, or may change the rate of payroll deductions by giving written
notice to the Company authorizing a change in the participant's payroll
deduction rate. The change rate shall be effective (i) in the case of a
decrease in rate, with the first payroll period following the Company's receipt
of the notice of rate change, and (ii) in the case of an increase in rate at
the beginning of the next Exercise Period following the Company's receipt of
the notice of rate exchange.

7. Grant of Option.

(a) On the Enrollment Date of each Offering Period, each eligible Employee
participating in such Offering Period shall be granted an option to purchase on
each Exercise Date during such Offering Period up to a number of shares of the
Company's Common Stock determined by dividing such Employee's payroll
deductions accumulated during the Exercise Period ending on such Exercise Date
by the lower of (i) eighty-five percent (85%) of the fair market value of a
share of the Company's Common Stock on the Enrollment Date or (ii) eighty-five
(85%) of the fair market value of a share of the Company's Common Stock on the
Exercise Date; provided that in no event shall an Employee be permitted to
purchase during each 24-month Offering Period more than a number of shares
determined by dividing $50,000 by the fair market value of a share of the
Company's Common Stock on the Enrollment Date, and provided further that such
purchase shall be subject to the limitations set forth in paragraphs 3(b) and
13 hereof. The option shall be automatically exercised on the Exercise Dates
during the Offering Period, unless the participant has withdrawn pursuant to
paragraph 11, and shall expire on the last day of the Offering Period. Fair
market value of a share of the Company's Common Stock shall be determined as
provided in paragraph 7(b) herein.

(b) The option price per share of the shares offered in a given offering
Period shall be the lower of: (i) 85% of the fair market value of a share of
the Common Stock of the Company on the Enrollment Date; or (ii) 85% of the fair
market value of a share of the Common Stock of the Company on the Exercise
Date. The fair market value of the Company's Common Stock on a given date shall
be determined by the Board in its discretion; provided, however, that where
there is a public market for the Common Stock, the fair market value per share
shall be the closing price of the Common Stock for such date, as reported by
the New York Stock Exchange, or, in the event the Common Stock is listed on a
stock exchange, the fair market value per share shall be the closing price on
such exchange on such date, as reported in The Wall Street Journal.

(c) Notwithstanding the foregoing, to the extent necessary to comply with
Section 423 (b) (8) of the Code and paragraph 3 (b) herein, a participant's
payroll deductions may be decreased to 0% at such time during any Exercise
Period which is scheduled to end during the current calendar year that the
aggregate of all payroll deductions accumulated with respect to such Exercise
Period and any other Exercise Period ending within the same calendar year equal
$21,250. Payroll deductions shall recommence at the rate provided in such
participant's subscription scheduled to end in the following calendar year,
unless terminated by the participant as provided in paragraph 11.

8. Exercise of Option. The participant's option for the purchase of shares
will be exercised automatically on each Exercise Date of each Offering Period
and the maximum number of full shares subject to option will be purchased for
such participant at the applicable option price with the accumulated payroll
deductions in his account unless prior to such Exercise Date the participant
has withdrawn from the Offering Period as provided in paragraph 11. During a
participant's lifetime, a participant's option to purchase shares hereunder is
exercisable only by the participant. Any amount remaining in the participant's
account after an Exercise Date shall be held in the account until the next
Exercise Date in such Offering Period, unless the Offering Period has been
over-subscribed or has terminated with such Exercise Date, in which case such
amount shall be refunded to the participant.

Annex II-3
<PAGE>

9. Delivery. As promptly as practicable after each Exercise Date, the
Company shall arrange the delivery to each participant, as appropriate, of a
certificate representing the shares purchased upon exercise of the option.

10. Automatic Transfer to Low Price Offering Period. If the fair market
value of the Company's Common Stock on the first day of an Offering Period then
in progress exceeds the fair market value of the Company's Common Stock on the
first day of any subsequent Offering Period commencing immediately following an
Exercise Date within the Offering Period in progress, then each participant in
the Offering Period in progress shall be deemed to have withdrawn from the
Offering Period in progress shall be deemed to have withdrawn from the Offering
Period in progress immediately following the exercise of his option on such
Exercise Date and to have enrolled in such subsequent Offering Period as of the
first day thereof.

11. Withdrawal; Termination of Employment.

(a) A participant may withdraw all but not less than all the payroll
deductions credited to his account under the Plan at any time prior to the end
of the Offering Period by giving written notice to the Company. All of the
participant's payroll deductions credited to his account will be paid to him
promptly after receipt of his notice of withdrawal and his option for the
current Offering Period will be automatically terminated, and no further
payroll deductions for the purchase of shares will be made during the Offering
Period. If a participant withdraws from an Offering Period, payroll deductions
will not resume at the beginning of the succeeding Offering Period unless the
participant delivers to the Company a new subscription agreement.

(b) Upon termination of the participant's employment prior to the end of the
Offering Period for any reason, including retirement or death, the payroll
deductions credited to his account will be returned to him or, in the case of
his death, to the person or persons entitled thereto under paragraph 15, and
his option will be automatically terminated.

(c) In the event a participant fails to remain in continuous Status as an
Employee of the Company for at least twenty (20) hours per week during the
Offering Period in which the employee is a participant, the participant will be
deemed to have elected to withdraw from the Plan and the payroll deductions
credited to his account will be returned to such participant and such
participant's option terminated; provided that

(i) if an Employee shall take a leave of absence approved by the Company
in accordance with paragraph 2(f) of this Plan during an Offering Period in
which the Employee is a participant, the participant will be deemed to have
his or her payroll deductions reduced to 0% during such leave of absence,
but he shall continue to be a participant in the applicable Offering Period
and upon his return to full-time employment with the Company shall be
eligible to participate fully in any remaining portion of the applicable
Offering Period. If the participant fails to return to full-time employment
with the Company at the end of such authorized leave of absence, or if his
employment is otherwise terminated earlier, he shall be deemed to have
withdrawn from participation in the Plan; and

(ii) if an Employee begins working part-time (fewer than twenty (20)
hours per week) with the intent of returning to full-time employment before
the end of the Offering Period in which he is currently participating, the
participant will be deemed to have withdrawn from the applicable Exercise
Period, the payroll deductions credited to his account will be returned to
him, and the rate of his payroll deductions shall be reduced to 0% during
such part-time employment, but he shall continue to be a participant in the
applicable Offering Period, and upon his return to full-time employment
with the Company he shall be eligible to participate fully in any remaining
portion of the applicable Offering Period. If the participant fails to
return to full-time employment with the Company before the end of the
applicable Offering Period, or if his employment with the Company is
otherwise terminated earlier, he shall be deemed to have withdrawn from
participation in the Plan.

(d) A participant's withdrawal from an Offering Period will not have any
effect upon his eligibility to participate in any similar plan which may
hereafter be adopted by the Company or in succeeding Offering Periods.

Annex II-4
<PAGE>

12. Interest. No interest shall accrue on the payroll deductions of a
participant in the Plan.

13. Stock.

(a) The maximum number of shares of the Company's Common Stock which shall
be made available for sale under the Plan shall be made available for sale
under the Plan shall be 3,366,401 shares, plus an increase to be added on April
1 of each year beginning on April 1, 2000 and ending on and including April 1,
2005 equal to the lesser of (i) 5,000,000 shares, (ii) 2% of the outstanding
shares on such date or (iii) a lesser amount determined by the Board, subject
to adjustment upon changes in capitalization of the Company as provided in
paragraph 19. If the total number of shares which would otherwise be subject to
options granted pursuant to paragraph 7 (a) hereof at the beginning of an
Offering Period exceeds the number of shares then available under the Plan
(after deduction of all shares for which options have been exercised or are
then outstanding), the Company shall make a pro rata allocation of the shares
remaining available for option grant in as uniform a manner as shall be
practicable and as it shall determine to be equitable. In such event, the
Company shall give written notice of such reduction of the number of shares
subject to the option to each Employee affected thereby and shall similarly
reduce the rate of payroll deductions, if necessary.

(b) The participant will have no interest or voting right in shares covered
by his option until such option has been exercised.

(c) Shares to be delivered to a participant under the Plan will be
registered in the name of the participant or in the name of the participant and
his spouse, or as otherwise directed by the participant.

14. Administration. The Plan shall be administered by the Board of Directors
of the Company or a committee appointed by the Board. The administration,
interpretation or application of the Plan by the Board or its committee shall
be final, conclusive and binding upon all participants. Members of the Board
who are eligible Employees are permitted to participate in the Plan, provided
that:

(a) Members of the Board who are eligible to participate in the Plan may not
vote on any matter affecting the administration of the Plan or the grant of any
option pursuant to the Plan.

(b) If a Committee is established to administer the Plan, no member of the
Board who is eligible to participate in the Plan may be a member of the
Committee.

15. Designation of Beneficiary.

(a) A participant may file a written designation of a beneficiary who is to
receive any shares and cash, if any, from the participant's account under the
Plan in the event of such participant's death subsequent to the end of the
Offering Period but prior to delivery to him of such shares and cash. In
addition, a participant may file a written designation of a beneficiary who is
to receive any cash from the participant's account under the Plan in the event
of such participant's death prior to the end of the Offering Period.

(b) Such designation of beneficiary may be changed by the participant at any
time by written notice. In the event of the death of a participant and in the
absence of a beneficiary validly designated under the Plan who is living at the
time of such participant's death, the Company shall deliver such shares and/or
cash to the executor or administrator of the estate of the participant, or if
no such executor or administrator has been appointed (to the knowledge of the
Company), the Company, in its discretion , may deliver such shares and/or cash
to the spouse or to any one or more dependents or relatives of the participant,
or if no spouse, dependent or relative is known to the Company, then to such
other person as the Company may designate.

16. Transferability. Neither payroll deductions credited to a participant's
account nor any rights with regard to the exercise of an option or to receive
shares under the Plan may be assigned, transferred, pledged or otherwise
disposed of in any way (other than by will, the laws of descent and
distribution or as provided in paragraph 15 hereof) by the participant. Any
such attempt at assignment, transfer, pledge or other disposition shall be
without effect, except that the Company may treat such act as an election to
withdraw funds in accordance with paragraph 11.

Annex II-5
<PAGE>

17. Use of Funds. All payroll deductions received or held by the Company
under the Plan may be used by the Company for any corporate purpose, and the
Company shall not be obligated to segregate such payroll deductions.

18. Reports. Individual accounts will be maintained for each participant in
the Plan. Statements of account will be given to participating Employees at
least annually promptly following the Exercise Date, which statements will set
forth the amounts of payroll deductions, the per share purchase price, the
number of shares purchased and the remaining cash balance, if any.

19. Adjustments Upon Changes in Capitalization. Subject to any required
action by the stockholders of the Company, the number of shares of Common Stock
covered by each option under the Plan which has not yet been exercised and the
number of shares of Common Stock which have been authorized for issuance under
the Plan but have not yet been placed under option (collectively, the
"Reserves"), as well as the price per share of Common Stock covered by each
option under the Plan which has not yet been exercised, shall be
proportionately adjusted for any increase or decrease in the number of issued
shares of Common Stock resulting from a stock split or the payment of a stock
dividend (but only on the Common Stock) or any other increase or decrease in
the number of shares of Common Stock effected without receipt of consideration
by the Company; provided, however, that conversion of any convertible
securities of the Company shall not be deemed to have been "effected without
receipt of consideration." Such adjustment shall be made by the Board, whose
determination in that respect shall be final, binding and conclusive. Except as
expressly provided herein, no issue by the Company of shares of stock of any
class, or securities convertible into shares of stock of any class, shall
affect, and no adjustment by reason thereof shall be made with respect to the
number or price of shares of Common Stock subject to an Option.

The Board may, if it so determines in the exercise of its sole discretion,
also make provision for adjusting the Reserves, as well as the price per share
of Common Stock covered by each outstanding option, in the event that the
Company effects one or more reorganizations, recapitalizations, rights
offerings or other increases or reductions of shares of its outstanding Common
Stock, and in the event of the Company being consolidated with or merged into
any other corporation.

20. Amendment or Termination.

(a) The Board of Directors of the Company may at any time and for any reason
terminate or amend the Plan. Except as provided in Section 19 hereof, no such
termination can affect options previously granted, provided that an Offering
Period may be terminated by the Board of Directors on any Exercise Date if the
Board determines that the termination of the Offering Period or the Plan is in
the best interests of the Company and its shareholders. Except as provided in
Section 19 and this Section 20 hereof, no amendment may make any change in any
option theretofore granted which adversely affects the rights of any
participant. To the extent necessary to comply with Section 423 of the Code (or
any successor rule or provision or any other applicable law, regulation or
stock exchange rule), the Company shall obtain shareholder approval in such a
manner and to such a degree as required.

(b) Without shareholder consent and without regard to whether any
participant rights may be considered to have been "adversely affected," the
Board (or its committee) shall be entitled to change the Offering Periods,
limit the frequency and/or number of changes in the amount withheld during an
Offering Period, establish the exchange ratio applicable to amounts withheld in
a currency other than U.S. dollars, permit payroll withholding in excess of the
amount designated by a participant in order to adjust for delays or mistakes in
the Company's processing of properly completed withholding elections, establish
reasonable waiting and adjustment periods and/or accounting and crediting
procedures to ensure that amounts applied toward the purchase of Common Stock
for each participant properly correspond with amounts withheld from the
participant's Compensation, and establish such other limitations or procedures
as the Board (or its committee) determines in its sole discretion advisable
which are consistent with the Plan.

Annex II-6
<PAGE>

(c) In the event the Board determines that the ongoing operation of the
Plan may result in unfavorable financial accounting consequences, the Board
may, in its discretion and, to the extent necessary or desirable, modify or
amend the Plan to reduce or eliminate such accounting consequence including,
but not limited to:

(i) altering the Purchase Price for any Offering Period including an
Offering Period underway at the time of the change in Purchase Price;

(ii) shortening any Offering Period so that Offering Period ends on a
new Exercise Date, including an Offering Period underway at the time of the
Board action; and (iii) allocating shares.

Such modifications or amendments shall not require stockholder approval or the
consent of any Plan participants.

21. Notices. All notices or other communications by a participant to the
Company under or in connection with the Plan shall be deemed to have been duly
given when received in the form specified by the Company at the location, or
by the person, designated by the Company for the receipt thereof.

22. Stockholder Approval. Continuance of the Plan and, if required by
paragraph 20, any amendment thereto shall be subject to approval by the
stockholders of the Company within twelve months before or after the date the
Plan or such amendment is adopted. If such stockholder approval is obtained at
a duly held stockholders' meeting, it may be obtained by the affirmative vote
of the holders of a majority of the outstanding shares of the Company present
or represented and entitled to vote thereon, which approval shall be:

(a) (1) solicited substantially in accordance with Section 14 (a) of the
Securities Act of 1934 as amended (the "Act") and the rules and regulations
promulgated thereunder, or (2) solicited after the Company has furnished in
writing to the holders entitled to vote substantially the same information
concerning the Plan as that which would be required by the rules and
regulations in effect under Section 14 (a) of the Act at the time such
information is furnished; and

(b) obtained at or prior to the first annual meeting of stockholders
held subsequent to the later of (i) the first registration of Common Stock
under Section 12 of the Act, or (ii) the acquisition of an equity security
for which exemption is claimed.

In the case of approval by written consent, it must be obtained in
accordance with applicable state law.

23. Conditions Upon Issuance of Shares. Shares shall not be issued with
respect to an option unless the exercise of such option and the issuance and
delivery of such shares pursuant thereto shall comply with all applicable
provisions of law, domestic or foreign, including, without limitation, the
Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as
amended, the rules and regulations promulgated thereunder, and the
requirements of any stock exchange upon which the shares may then be listed,
and shall be further subject to the approval of counsel for the Company with
respect to such compliance.

As a condition to the exercise of an option, the Company may require the
person exercising such option to represent and warrant at the time of any such
exercise that the shares are being purchased only for investment and without
any present intention to sell or distribute such shares if, in the opinion of
counsel for the Company, such a representation is required by any of the
aforementioned applicable provisions of law.

24. Term of Plan. The Plan shall become effective upon the earlier to occur
of its adoption by the Board of Directors or its approval by the stockholders
of the Company as described in paragraph 22. It shall continue in effect for a
term of twenty (20) years unless sooner terminated under paragraph 20.

Annex II-7