SANDISK CORP
DEF 14A, 1999-03-30
COMPUTER STORAGE DEVICES
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                                  SCHEDULE 14A
                                 (Rule 14a-101)
                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION
           Proxy Statement Pursuant to Section 14(a) of the Securities
                              Exchange Act of 1934

       Filed by the registrant  X  
                               ---
       Filed by a party other than the registrant
                                                 ----
       Check the appropriate box:
           Preliminary proxy statement
        ---
           Definitive proxy statement
        ---
           Definitive additional materials
        ---
           Soliciting material pursuant to Rule 14a-11(c) or Rule 14a-12
        ---
                               SanDisk Corporation
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

                               SanDisk Corporation
- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of filing fee (Check the appropriate box):
         X No fee required.
        ---
           $500 per each party to the controversy pursuant to Exchange Act Rule
        ---
           14a-6(i)(3). Fee computed on table below per Exchange Act Rules
           14a-6(i)(4) and 0-11.
        ---
- --------------------------------------------------------------------------------
         (1)      Title  of  each  class  of  securities  to  which  transaction
                  applies:

- --------------------------------------------------------------------------------
         (2)      Aggregate number of securities to which transactions applies:

- --------------------------------------------------------------------------------
         (3)      Per  unit  price  or other  underlying  value  of  transaction
                  computed  pursuant  to  Exchange  Act Rule 0-11 (set forth the
                  amount on which the filing fee is calculated  and state how it
                  was determined):

- --------------------------------------------------------------------------------
         (4)      Proposed maximum aggregate value of transaction:


- --------------------------------------------------------------------------------
         (5)      Total fee paid:

- --------------------------------------------------------------------------------
            Fee paid previously with preliminary materials:
         ---
- --------------------------------------------------------------------------------
           Check box if any part of the fee is offset as  provided  by  Exchange
       ---
Act Rule  0-11(a)(2)  and identify the filing for which the  offsetting  fee was
paid previously.  Identify the previous filing by registration statement number,
or the form or schedule and the date of its filing.

         (1)      Amount previously paid:   $

- --------------------------------------------------------------------------------
         (2)      Form, schedule or registration statement no.: Final Proxy

- --------------------------------------------------------------------------------
         (3)      Filing party:  SanDisk Corporation

- --------------------------------------------------------------------------------
         (4)      Date filed:       March 30, 1999
- --------------------------------------------------------------------------------


<PAGE>


                               SANDISK CORPORATION
                                140 Caspian Court
                           Sunnyvale, California 94089




Dear Stockholder:

You are  cordially  invited to attend the Annual  Meeting of  Stockholders  (the
"Annual  Meeting") of SanDisk  Corporation (the "Company") which will be held on
May 12,  1999 at 9:00 a.m.,  local  time,  at the  Company's  headquarters,  140
Caspian Court, Sunnyvale, California 94089.

At the Annual Meeting, you will be asked to consider and vote upon the following
proposals:  (i) to elect seven (7) directors of the Company,  (ii) to approve an
amendment to the  Company's  1995 Stock Option Plan (iii) to approve a series of
amendments to the 1995 Non-Employee  Directors Stock Option Plan (iv) to approve
an amendment to the Company's Employee Stock Purchase Plan and (v) to ratify the
appointment of Ernst & Young LLP as  independent  accountants of the Company for
the fiscal year ending January 2, 2000.

The enclosed Proxy Statement more fully describes the details of the business to
be conducted at the Annual Meeting. After careful  consideration,  the Company's
Board of Directors has  unanimously  approved the proposals and recommends  that
you vote FOR each such proposal.

After  reading  the Proxy  Statement,  please  mark,  date,  sign and return the
enclosed proxy card in the  accompanying  reply envelope as promptly as possible
but no later than May 12, 1999.  If you decide to attend the Annual  Meeting and
would prefer to vote in person,  please notify the Secretary of the Company that
you wish to vote in person and your proxy will not be voted.  YOUR SHARES CANNOT
BE VOTED  UNLESS  YOU SIGN,  DATE AND RETURN  THE  ENCLOSED  PROXY OR ATTEND THE
ANNUAL MEETING IN PERSON.

A copy of the Company's 1998 Annual Report has been mailed concurrently herewith
to all stockholders entitled to notice of and to vote at the Annual Meeting.

We look forward to seeing you at the Annual Meeting.

                                Sincerely yours,


                                 /s/ Eli Harari

                                 Eli Harari
                                 President and Chief Executive Officer

Sunnyvale, California
March 30, 1999


- --------------------------------------------------------------------------------
                                    IMPORTANT

Please  mark,  date and sign the enclosed  proxy and return it at your  earliest
convenience in the enclosed  postage-prepaid  return envelope so that if you are
unable to attend the Annual Meeting, your shares may be voted.
- --------------------------------------------------------------------------------



<PAGE>



                               SANDISK CORPORATION
                                140 Caspian Court
                           Sunnyvale, California 94089



                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                             TO BE HELD May 12, 1999


TO OUR STOCKHOLDERS:

You are  cordially  invited to attend the Annual  Meeting of  Stockholders  (the
"Annual  Meeting")  of  SanDisk   Corporation,   a  Delaware   corporation  (the
"Company"),  to be held  on May  12,  1999 at  9:00  a.m.,  local  time,  at the
Company's headquarters, 140 Caspian Court, Sunnyvale,  California 94089, for the
following purposes:

1.       To  elect  directors  to serve  for the  ensuing  year or  until  their
         respective successors are duly elected and qualified.  The nominees are
         Dr. Eli Harari, Irwin Federman, William V. Campbell, Catherine P. Lego,
         Dr. James D. Meindl, Thomas F. Mulvaney and Alan F. Shugart.

2.       To approve an amendment to the  Company's  1995 Stock Option Plan which
         would (i) increase the number of shares  issuable under such plan by an
         additional  3,500,000  shares of the  Company's  common  stock and (ii)
         implement an automatic  share  increase  feature  pursuant to which the
         share  reserve  under the Option Plan would be  increased  on the first
         trading day in January each calendar year, beginning with calendar year
         2002,  by an amount  equal to four and  thirty-six  hundredths  percent
         (4.36%) of the total  number of shares of the  Company's  common  stock
         outstanding  on the last  trading day in  December  in the  immediately
         preceding  calendar year, but not more than a specified  maximum number
         of shares per annual increase.

3.       To approve a series of  amendments to the 1995  Non-Employee  Directors
         Stock Option Plan, including (i) a 200,000-share increase to the number
         of shares of the  Company's  common stock  reserved for issuance  under
         that plan,  (ii) the  implementation  of an  automatic  share  increase
         feature  pursuant to which the share reserve  under the Directors  Plan
         would be  increased on the first  trading day in January each  calendar
         year,  beginning  with  calendar  year 2002,  by an amount equal to two
         tenths  of one  percent  (0.2%)  of the  total  number of shares of the
         Company's common stock  outstanding on the last trading day in December
         in the  immediately  preceding  calendar  year,  but  not  more  than a
         specified  maximum number of shares per annual  increase,  and (iii) an
         increase  in the  number  of shares  of  common  stock for which  stock
         options are to be granted to newly-elected  non-employee  Board members
         at the time of their  election  to the  Board  and an  increase  in the
         number  of shares of  common  stock for which  continuing  non-employee
         Board  members are to be granted stock options on an annual basis under
         the plan.

4.       To approve an amendment to the Company's  Employee  Stock Purchase Plan
         which would (i) increase the number of shares  issuable under such plan
         by an additional  300,000 shares of the Company's common stock and (ii)
         implement an automatic  share  increase  feature  pursuant to which the
         share  reserve  under the Purchase Plan would be increased on the first
         trading day in January each calendar year, beginning with calendar year
         2002, by an amount equal to forty-three  hundredths  percent (0.43%) of
         the total number of shares of the Company's common stock outstanding on
         the last trading day in December in the immediately  preceding calendar
         year, but not more than a specified maximum number of shares per annual
         increase.

5.       To  ratify  the  appointment  of  Ernst  &  Young  LLP  as  independent
         accountants of the Company for the fiscal year ending January 2, 2000.

6.       To transact such other business as may properly come before the meeting
         or any adjournment thereof.

The foregoing  items of business are more fully described in the Proxy Statement
that accompanies this Notice.

<PAGE>

Only  stockholders  of  record at the close of  business  on March 15,  1999 are
entitled to notice of and to vote at the Annual Meeting and at any  continuation
or adjournment  thereof.  A list of stockholders  entitled to vote at the Annual
Meeting  will be  available  for  inspection  at the  executive  offices  of the
Company.

All  stockholders  are  cordially  invited and  encouraged  to attend the Annual
Meeting.  In any event,  to assure your  representation  at the meeting,  please
carefully read the  accompanying  Proxy Statement which describes the matters to
be voted on at the Annual  Meeting and sign,  date and return the enclosed proxy
card in the reply  envelope  provided.  Should you  receive  more than one proxy
because your shares are registered in different names and addresses,  each proxy
should be returned  to assure that all your shares will be voted.  If you attend
the Annual Meeting and vote by ballot, your proxy will be revoked  automatically
and only your vote at the Annual  Meeting will be counted.  The prompt return of
your proxy card will assist us in preparing for the Annual Meeting.

We look forward to seeing you at the Annual Meeting.

                       BY ORDER OF THE BOARD OF DIRECTORS





                       CINDY BURGDORF
                       Chief Financial Officer, Senior Vice President,
                       Finance and  Administration and Secretary

Sunnyvale, California
March 30, 1999


ALL STOCKHOLDERS  ARE CORDIALLY  INVITED TO ATTEND THE ANNUAL MEETING IN PERSON.
IN ANY EVENT, TO ENSURE YOUR REPRESENTATION AT THE ANNUAL MEETING, YOU ARE URGED
TO VOTE,  SIGN AND RETURN THE  ENCLOSED  PROXY AS  PROMPTLY  AS  POSSIBLE IN THE
POSTAGE-PREPAID ENVELOPE ENCLOSED FOR THAT PURPOSE.


<PAGE>


                                 PROXY STATEMENT

                    FOR THE ANNUAL MEETING OF STOCKHOLDERS OF
                               SANDISK CORPORATION
                             TO BE HELD May 12, 1999



                                     GENERAL

This Proxy  Statement is furnished in connection  with the  solicitation  by the
Board of Directors of SanDisk Corporation, a Delaware corporation (the "Company"
or "SanDisk"), of proxies to be voted at the Annual Meeting of Stockholders (the
"Annual  Meeting")  to be  held  on  May  12,  1999,  or at any  adjournment  or
postponement  thereof,  for the purposes set forth in the accompanying Notice of
Annual Meeting of Stockholders. Stockholders of record on March 15, 1999 will be
entitled to vote at the Annual Meeting.  The Annual Meeting will be held at 9:00
a.m., local time, at the Company's  headquarters,  140 Caspian Court, Sunnyvale,
California 94089.

It is anticipated  that this Proxy Statement and the enclosed proxy card will be
first mailed to stockholders on or about April 9, 1999.

                                  VOTING RIGHTS

The close of business  on March 15,  1999 was the record  date for  stockholders
entitled  to notice of and to vote at the Annual  Meeting  and any  adjournments
thereof. At the record date, the Company had approximately  26,819,100 shares of
its Common Stock outstanding and entitled to vote at the Annual Meeting, held by
approximately  212 stockholders of record.  Holders of Common Stock are entitled
to one  vote for  each  share of  Common  Stock  so  held.  In the  election  of
Directors,  however, cumulative voting is authorized for all stockholders if any
stockholder  gives  notice at the  meeting,  prior to voting for the election of
Directors, of his or her intention to cumulate votes. Under cumulative voting, a
stockholder  may cumulate  votes and give to one nominee a number of votes equal
to the number of Directors to be elected  (seven at this meeting)  multiplied by
the number of votes to which such  stockholder  is entitled,  or may  distribute
such number among any or all of the nominees. The seven candidates receiving the
highest  number of votes will be elected.  The Board of Directors is  soliciting
discretionary  authority to vote proxies cumulatively.  A majority of the shares
of Common Stock entitled to vote will constitute a quorum for the transaction of
business at the Annual Meeting.

If any stockholder is unable to attend the Annual Meeting,  such stockholder may
vote by  proxy.  The  enclosed  proxy is  solicited  by the  Company's  Board of
Directors, (the "Board of Directors" or the "Board") and, when the proxy card is
returned properly completed,  it will be voted as directed by the stockholder on
the proxy card.  Stockholders are urged to specify their choices on the enclosed
proxy card. If a proxy card is signed and returned without choices specified, in
the absence of contrary instructions,  the shares of Common Stock represented by
such  proxy will be voted FOR  Proposals  1, 2, 3, 4, and 5 and will be voted in
the proxy holders'  discretion as to other matters that may properly come before
the Annual Meeting.

An  affirmative  vote of a plurality of the shares present or represented at the
meeting and voting is required for the  election of  directors.  An  affirmative
vote of a majority  of the shares  present or  represented  at the  meeting  and
entitled to vote is required for the approval of each of the other proposals. An
automated  system   administered  by  the  Company's  transfer  agent  tabulates
stockholder  votes.  Abstentions  and  broker  non-votes  each are  included  in
determining  the number of shares  present and voting at the Annual  Meeting for
purposes  of  determining  the  presence  or  absence  of a quorum,  and each is
tabulated separately.  Abstentions are counted as negative votes, whereas broker
non-votes are not counted for purposes of determining  whether Proposals 2, 3, 4
and 5 presented to stockholders have been approved.

                                       4
<PAGE>


                             REVOCABILITY OF PROXIES

Any  person  giving a proxy has the power to  revoke it at any time  before  its
exercise.  A proxy may be revoked by filing with the Secretary of the Company an
instrument of  revocation  or a duly executed  proxy bearing a later date, or by
attending the Annual Meeting and voting in person.

                             SOLICITATION OF PROXIES

The Company will bear the cost of  soliciting  proxies.  Copies of  solicitation
material  will be furnished to brokerage  houses,  fiduciaries,  and  custodians
holding shares in their names that are  beneficially  owned by others to forward
to such  beneficial  owners.  The Company may  reimburse  such persons for their
costs of forwarding the  solicitation  material to such beneficial  owners.  The
original  solicitation of proxies by mail may be supplemented by solicitation by
telephone,  telegram, or other means by directors, officers, employees or agents
of the Company. No additional compensation will be paid to these individuals for
any such services.
Except as described  above, the Company does not intend to solicit proxies other
than by mail.

THE ANNUAL REPORT OF THE COMPANY FOR THE FISCAL YEAR ENDED DECEMBER 27, 1998 HAS
BEEN MAILED  CONCURRENTLY  WITH THE MAILING OF THE NOTICE OF ANNUAL  MEETING AND
PROXY  STATEMENT  TO ALL  STOCKHOLDERS  ENTITLED TO NOTICE OF AND TO VOTE AT THE
ANNUAL MEETING.  THE ANNUAL REPORT IS NOT INCORPORATED INTO THIS PROXY STATEMENT
AND IS NOT CONSIDERED PROXY SOLICITING MATERIAL.

                                       5
<PAGE>


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

                                 PROPOSAL NO. 1:

                              ELECTION OF DIRECTORS
                       -----------------------------------

At the Annual Meeting, seven directors (constituting the entire board) are to be
elected  to serve  until the next  Annual  Meeting of  Stockholders  and until a
successor  for such  director  is  elected  and  qualified,  or until the death,
resignation,  or removal of such director.  It is intended that the proxies will
be voted for the seven nominees named below for election to the Company's  Board
of Directors  unless  authority to vote for any such nominee is withheld.  There
are seven nominees,  each of whom is currently a director of the Company. All of
the current directors, other than Mr. Mulvaney, were elected to the Board by the
stockholders at the last annual meeting.  Each person nominated for election has
agreed to serve if elected,  and the Board of Directors has no reason to believe
that any nominee will be  unavailable  or will  decline to serve.  In the event,
however,  that any  nominee is unable or  declines to serve as a director at the
time of the Annual  Meeting,  the  proxies  will be voted for any nominee who is
designated  by the  current  Board  of  Directors  to fill the  vacancy.  Unless
otherwise  instructed,  the proxyholders  will vote the proxies received by them
FOR the nominees named below. The seven candidates  receiving the highest number
of the  affirmative  votes of the shares  entitled to vote at the Annual Meeting
will be elected  directors of the Company.  The proxies  solicited by this Proxy
Statement may not be voted for more than seven nominees.


                                    NOMINEES


         Set forth below is  information  regarding the nominees to the Board of
Directors.
                                  Position(s) with the           First Elected
Name                                    Company            Age     Director
- ------------------------------ --------------------------  ---  --------------

Dr. Eli Harari ............... President, Chief Executive   53       1988
                               Officer and Director
Irwin Federman (1)............ Chairman of the Board        63       1988
William V. Campbell (2)....... Director                     58       1993
Catherine P. Lego (1)......... Director                     42       1989
Dr. James D. Meindl........... Director                     65       1989
Thomas Mulvaney (3)........... Director                     50       1998
Alan F. Shugart (2)........... Director                     68       1993


(1)      Member of the Audit Committee
(2)      Member of the Compensation Committee
(3)      Member of the Audit Committee as of October 1998

                                       6
<PAGE>


            BUSINESS EXPERIENCE OF NOMINEES FOR ELECTION AS DIRECTORS


         Dr. Harari, the founder of the Company, has served as the President and
Chief  Executive  Officer and as a director of the Company since June 1988.  Dr.
Harari founded Wafer Scale Integration,  a privately held semiconductor company,
in 1983 and was its President and Chief Executive Officer from 1983 to 1986, and
Chairman and Chief  Technical  Officer from 1986 to 1988. From 1973 to 1983, Dr.
Harari held various  management  positions with Honeywell Inc., Intel and Hughes
Aircraft  Microelectronics.  Dr.  Harari  also  serves on the  boards of Artisan
Components  and USIC.  Dr. Harari holds a Ph.D.  degree in Solid State  Sciences
from Princeton University.

         Mr.  Federman  has served as Chairman of the Board of  Directors  since
September  1988.  Since April 1990, Mr.  Federman has been a general  partner in
U.S.  Venture  Partners,  a venture  capital  firm.  From 1988 to 1990, he was a
Managing  Director of Dillon  Read & Co.,  an  investment  banking  firm,  and a
general partner in its venture capital affiliate,  Concord Partners. From August
1987 to December  1987,  Mr.  Federman was Vice Chairman of AMD,  which acquired
Monolithic  Memories,  a  corporation  engaged in the  production  of integrated
circuits,  with which he was  affiliated  for 16 years.  From 1979 to 1987,  Mr.
Federman was President of Monolithic  Memories.  Mr. Federman served as Chairman
of the  Semiconductor  Industry  Association  from  1986 to  1988.  He is also a
director of Komag Incorporated,  Western Digital  Corporation,  NeoMagic,  Inc.,
Checkpoint Software Technologies,  Inc., MMC Networks,  Inc. and various private
corporations. Mr. Federman holds a B.S. degree from Brooklyn College.

         Mr.  Campbell  has served as a director  of the Company  since  October
1993. Mr. Campbell is Chairman of the Board of Directors of Intuit, Inc. and was
President and Chief Executive Officer and a director of Intuit Inc. from 1994 to
1998. From 1991 to 1993, Mr. Campbell was President and Chief Executive  Officer
of GO Corporation,  a pen-based  computing software company.  From 1987 to 1991,
Mr. Campbell was President and Chief Executive Officer of Claris Corporation,  a
software subsidiary of Apple Computer Inc. Mr. Campbell holds both B.A. and M.A.
degrees in Economics from Columbia University.

         Ms. Lego has served as a director of the Company since March 1989.  Ms.
Lego has been self-employed with her consulting firm, Lego Ventures, since 1992.
From 1981 to 1992, Ms. Lego held various positions with Oak Investment Partners,
a venture capital firm and was general partner of several of the venture capital
partnerships  affiliated with Oak Investment Partners. Ms. Lego also serves as a
director  of  Uniphase  Corporation,   Zitel  Corporation  and  various  private
corporations.  Ms. Lego is a Certified Public Accountant and holds a B.A. degree
in Economics and Biology from Williams  College and an M.S. degree in Accounting
from the New York University Graduate School of Business.

         Dr.  Meindl has served as a director of the  Company  since March 1989.
Dr. Meindl has been the Joseph M. Pettit Chair Professor of  Microelectronics at
the Georgia Institute of Technology in Atlanta, Georgia since 1993. From 1986 to
1993,  Dr.  Meindl  served as Senior Vice  President  for  Academic  Affairs and
Provost of Rensselaer Polytechnic Institute.  From 1967 to 1986, he was the John
M. Fluke Professor of Electrical Engineering at Stanford University.  Dr. Meindl
serves as a director of Zoran,  Inc.  and Digital  Microwave.  Dr.  Meindl holds
B.S.,  M.S. and Ph.D.  degrees in Electrical  Engineering  from  Carnegie-Mellon
University.

         Mr.  Mulvaney  has served as a director  of the Company  since  October
1998.  He has been Senior Vice  President,  General  Counsel  and  Secretary  at
Seagate Technology,  Inc., since 1996. Mr. Mulvaney was Vice President,  General
Counsel and Secretary at Conner  Peripherals  from May 1995 until February 1996.
Prior to  joining  Conner  Peripherals,  he was with VLSI  Technology,  Inc.,  a
semiconductor  company,  from 1990 to 1995,  where he served as Vice  President,
General Counsel and Secretary,  and held departmental  responsibility for legal,
human resources,  corporate communications and facilities.  Mr. Mulvaney holds a
B.A. degree from Santa Clara University and a J.D. degree from University of San
Diego.

         Mr. Shugart has served as a director of the Company since January 1993.
Mr. Shugart founded Seagate Technology,  Inc. in 1979, building the company into
the  world's  largest  independent  manufacturer  of  disk  drives  and  related
components.  In 1998, he left Seagate to establish Al Shugart  International,  a
management/consultant  company  focused  on  helping  entrepreneurs  launch  new
enterprises.  Mr.  Shugart  also serves as a director  of Cypress  Semiconductor
Corp.,  Valence Technology,  Inktomi,  and Sarnoff Digital  Communications.  Mr.
Shugart  holds a B.S.  degree  in  Engineering/Physics  from the  University  of
Redlands.

                                       7
<PAGE>


                          BOARD MEETINGS AND COMMITTEES

The Board of Directors held five meetings during fiscal 1998. Each member of the
Board of  Directors  during  fiscal 1998  attended or  participated  in at least
seventy-five  percent  (75%) or more of the aggregate of (i) the total number of
meetings  of the Board of  Directors  held  during the fiscal  year and (ii) the
total number of meetings held by all  committees  on which such director  served
during the past fiscal year. There are no family  relationships  among executive
officers  or  directors  of the  Company.  The Board of  Directors  has an Audit
Committee and a Compensation Committee.

The Audit  Committee of the Board of Directors  held two meetings  during fiscal
1998. The Audit Committee,  which is currently  comprised of Directors Federman,
Lego  and  Mulvaney,   recommends   engagement  of  the  Company's   independent
accountants,  approves  services  performed by such  accountants and reviews and
evaluates the Company's accounting system and its system of internal controls.

The  Compensation  Committee of the Board of Directors held four meetings during
fiscal  1998 and  approved  grants of options  by  written  consent on a monthly
basis. The Compensation Committee,  which is comprised of Directors Campbell and
Shugart, has overall  responsibility for the Company's compensation policies and
determines  the  compensation  payable  to  the  Company's  executive  officers,
including their  participation in certain of the Company's  employee benefit and
stock option plans.

                              DIRECTOR COMPENSATION

Board  members do not  receive  any cash  compensation  for their  services as a
director.  Board  members are also not  compensated  for their  service on Board
committees  or  their   performance  of  special   assignments.   However,   the
non-employee  Board members are eligible to receive periodic option grants under
the 1995  Non-Employee  Directors Stock Option Plan (the "Directors  Plan").  In
addition,  Dr.  Meindl is paid  $10,000  per annum in his  capacities  as Senior
Technical advisor to the Company,  and Ms. Lego is paid $10,000 per annum in her
capacity as Financial Advisor to the Company.

Under the Directors Plan, as in effect during the 1998 fiscal year, Mr. Mulvaney
received an option grant for 16,000 shares of Common Stock at an exercise  price
of $9.50 per share on October 22, 1998 in connection with his appointment to the
Board  as  a  non-employee  director.  In  addition,  each  individual  who  was
re-elected as a non-employee Board member at the 1998 Annual Meeting received at
that time an option grant under the Directors  Plan to purchase  4,000 shares of
Common Stock, provided such individual had served as a non-employee Board member
for at least six months.  Accordingly,  each of the following non-employee Board
members  re-elected to the Board at the 1998 Annual  Meeting  received an option
grant  for  4,000  shares on April 30,  1998,  the date of that  meeting,  at an
exercise price of $20.875 per share: Messrs. Federman,  Campbell,  Meindl, Rizzi
and Shugart and Ms. Lego.

Each  automatic  grant has an exercise  price per share equal to the fair market
value per share of Common  Stock on the grant date and has a maximum  term of 10
years,  subject to earlier  termination  following the  optionee's  cessation of
Board service.  Each automatic option is immediately  exercisable for any or all
of the option shares;  however,  any shares  purchased  under the option will be
subject to  repurchase  by the Company,  at the option  exercise  price paid per
share,  should the optionee  cease service as a Board member prior to vesting in
those shares.  The shares subject to the 16,000 share grant made to Mr. Mulvaney
will vest in four successive equal annual  installments over his period of Board
service,  with the first  installment to vest upon his completion of one year of
Board  service  measured  from the grant date.  The shares  subject to the 4,000
share grant made to each non-employee Board member re-elected at the 1998 Annual
Meeting will vest upon the  optionee's  completion  of one year of Board service
measured from the grant date.  However,  the shares subject to each  outstanding
option  will  immediately  vest upon (i)  certain  changes in the  ownership  or
control of the Company or (ii) the death or  disability  of the  optionee  while
serving as a Board member.  In addition,  each automatic  option grant may, upon
the successful  completion of a hostile tender offer for more than fifty percent
(50%) of the Company's  outstanding  common stock, be surrendered to the Company
for a cash distribution per surrendered  option share equal to the excess of (i)
the highest price per share of common stock paid in connection  with such tender
offer ver (ii) the exercise price payable per share.

A number of substantial revisions will be made to the Directors Plan if Proposal
No. 3 is approved by the stockholders at the Annual Meeting.  Please review that
proposal for further information concerning those changes.

              THE BOARD OF DIRECTORS  RECOMMENDS THAT THE STOCKHOLDERS  VOTE FOR
THE ELECTION OF ALL OF THE ABOVE NOMINEES.



<PAGE>


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

                                 PROPOSAL NO. 2:

                              APPROVAL OF AMENDMENT
                          TO THE 1995 STOCK OPTION PLAN
                     ---------------------------------------

The  Company's  stockholders  are being  asked to  approve an  amendment  to the
Company's  1995 Stock Option Plan (the "Option Plan") that will (i) increase the
maximum  number of shares of Common Stock  authorized for issuance over the term
of the Option  Plan by an  additional  3,500,000  shares and (ii)  implement  an
automatic  share  increase  feature  pursuant  to which  the  number  of  shares
available for issuance under the Option Plan will automatically  increase on the
first trading day in January each calendar  year,  beginning  with calendar year
2002 and  continuing  over the  remaining  term of the Option Plan, by an amount
equal to four and thirty-six  hundredths  percent (4.36%) of the total number of
shares  outstanding  on the last  trading  day in  December  in the  immediately
preceding  calendar year, but in no event will any such annual  increase  exceed
2,000,000 shares.

The  amendment  will  assure  that a  sufficient  reserve  of Common  Stock will
continue  to be  available  under the  Option  Plan to  attract  and  retain the
services of key  individuals  essential to the  Company's  long-term  growth and
success.  The amendment was adopted by the Board in December,  1998,  subject to
stockholder approval at the 1999 Annual Meeting.

The  following  is a summary  of the  principal  features  of the  Option  Plan,
together with the applicable tax and accounting  implications,  which will be in
effect if the  amendment  to the Option Plan is  approved  by the  stockholders.
However,  the summary does not purport to be a complete  description  of all the
provisions  of the Option  Plan.  Any  stockholder  of the Company who wishes to
obtain a copy of the actual plan document may do so upon written  request to the
Secretary at the Company's principal executive offices in Sunnyvale, California.

Administration

The Option Plan is administered by the Compensation  Committee of the Board. The
Compensation  Committee  acting  in  such  administrative  capacity  (the  "Plan
Administrator") has complete discretion (subject to the provisions of the Option
Plan) to authorize option grants under the Option Plan.

Share Reserve

A total of 9,498,711  shares of Common Stock has been reserved for issuance over
the ten (10)-year term of the Option Plan including the 3,500,000-share increase
for which  stockholder  approval  is sought  as part of this  Proposal  No 2. In
addition,  upon  stockholder  approval  of this  Proposal,  the number of shares
available for issuance under the Option Plan will automatically  increase on the
first trading day in January each calendar  year,  beginning  with calendar year
2002 and  continuing  over the  remaining  term of the Option Plan, by an amount
equal to four and thirty-six  hundredths  percent (4.36%) of the total number of
shares of Common  Stock  outstanding  on the last trading day in December in the
immediately  preceding  calendar  year,  but in no event  will  any such  annual
increase exceed 2,000,000 shares.

No  participant  in the Option Plan may be granted stock options and  separately
exercisable  stock  appreciation  rights for more than  1,000,000  shares in the
aggregate under the Option Plan, and stockholder  approval of this Proposal will
also constitute re-approval of that limitation.

Should an option  expire or terminate  for any reason prior to exercise in full,
the shares  subject  to the  portion  of the  option  not so  exercised  will be
available for subsequent  issuance under the Option Plan. Unvested shares issued
under  the  Option  Plan and  subsequently  repurchased  by the  Company  at the
original  option or issue  price  paid per share will be added back to the share
reserve and will  accordingly  be available for  subsequent  issuance  under the
Plan.  However,  should the exercise price of an option under the Option Plan be
paid with  shares of Common  Stock or should  shares of Common  Stock  otherwise
issuable under the Option Plan be withheld by the Company in satisfaction of the
withholding taxes incurred in connection with the exercise of an

                                       9
<PAGE>


option,  then  the number of shares of Common Stock available for issuance under
the Plan will be reduced  by the gross  number of shares for which the option is
exercised  and not by the net  number  of  shares  issued  to the  holder of the
option.

Changes in Capitalization

In the event any  change is made to the  outstanding  shares of Common  Stock by
reason of any  recapitalization,  stock  dividend,  stock split,  combination of
shares,  exchange  of shares or other  change in  corporate  structure  effected
without the Company's receipt of consideration,  appropriate adjustments will be
made to (i) the maximum number and class of securities issuable under the Option
Plan, (ii) the maximum number and class of securities by which the share reserve
may  increase in any calendar  year by reason of the  automatic  share  increase
provisions of the Option Plan,  (iii) the maximum number and class of securities
for which any one  participant  may be  granted  stock  options  and  separately
exercisable stock appreciation rights over the term of the Option Plan, and (iv)
the number and class of  securities  and the exercise  price per share in effect
under each outstanding option.

Eligibility

Employees of the Company and its parent and  subsidiaries  (whether now existing
or subsequently established),  non-employee members of the Board or the board of
directors of any parent or subsidiary,  and  consultants  and other  independent
advisors  who provide  services  to the Company and its parent and  subsidiaries
(whether  now  existing  or  subsequently   established)  will  be  eligible  to
participate in the Option Plan.

As of March 15, 1999,  six (6) executive  officers,  four hundred  seventy-seven
(477) other employees,  and six (6) non-employee  Board members were eligible to
participate in the Option Plan.

Valuation

The fair market value per share of Common  Stock on any relevant  date under the
Option  Plan  will be the  closing  selling  price per share on that date on the
Nasdaq National  Market.  On March 15, 1999, the closing selling price per share
was $36.00.

                                  Option Grants

Price and Exercisability

Options may be granted under the Option Plan at an exercise  price per share not
less than eighty-five percent (85%) of the fair market value per share of Common
Stock on the option grant date. No granted  option will have a term in excess of
ten (10) years.  The options will  generally  become  exercisable in a series of
installments over the optionee's period of service with the Company.

The exercise price may be paid in cash or in shares of the Common Stock.  Vested
options may also be exercised  through a same-day sale program pursuant to which
a  designated  brokerage  firm  will  effect  an  immediate  sale of the  shares
purchased under the option and pay over to the Company, out of the sale proceeds
available on the settlement  date,  sufficient funds to cover the exercise price
for the purchased shares plus all applicable withholding taxes.

The shares of Common Stock acquired upon the exercise of one or more options may
be unvested and subject to repurchase by the Company,  at the original  exercise
price paid per share,  if the optionee  ceases service with the Company prior to
vesting in those shares. The Plan Administrator will have complete discretion to
establish the vesting  schedule to be in effect for any such unvested shares and
may at any time cancel the Company's outstanding  repurchase rights with respect
to those shares and thereby accelerate the vesting of those shares.

No optionee will have any  stockholder  rights with respect to the option shares
until such optionee has exercised the option and paid the exercise price for the
purchased  shares.  Options are generally not assignable or  transferable  other
than by will or the laws of inheritance and, during the optionee's lifetime, the
option may be exercised only by such optionee.  However,  the Plan Administrator
may allow  non-statutory  options  to be  transferred  or  assigned  during  the
optionee's lifetime to one or more members

                                       10
<PAGE>


of the optionee's immediate family or to a trust established exclusively for one
or more such family  members,  to the extent such  transfer or  assignment is in
furtherance of the optionee's estate plan.

Termination of Service

Upon  cessation of service,  the optionee will have a limited  period of time in
which to  exercise  his or her  outstanding  options for any shares in which the
optionee  is vested at that  time.  The Plan  Administrator  will have  complete
discretion to extend the period  following the  optionee's  cessation of service
during  which  his  or  her  outstanding  options  may be  exercised  and/or  to
accelerate  the  exercisability  or vesting of such options in whole or in part.
Such  discretion  may  be  exercised  at  any  time  while  the  options  remain
outstanding, whether before or after the optionee's actual cessation of service.

Stock Appreciation Rights

The Plan  Administrator  is authorized to issue two types of stock  appreciation
rights in connection with option grants made under the Option Plan:

         Tandem stock appreciation  rights provide the holders with the right to
         surrender  their  options  for an  appreciation  distribution  from the
         Company  equal in amount to the excess of (a) the fair market  value of
         the vested  shares of Common Stock  subject to the  surrendered  option
         over (b) the aggregate  exercise  price payable for those shares.  Such
         appreciation   distribution   may,  at  the   discretion  of  the  Plan
         Administrator,  be made in cash,  in shares of  Common  Stock,  or in a
         combination of cash and shares of Common Stock.

         Limited  stock  appreciation  rights  may be  provided  to one or  more
         officers or non-employee  Board members as part of their option grants.
         Any  option  with  such  a  limited  stock  appreciation  right  may be
         surrendered to the Company upon the successful  completion of a hostile
         tender  offer  for more  than  fifty  percent  (50%)  of the  Company's
         outstanding  voting stock.  In return for the surrendered  option,  the
         officer or Board  member will be entitled to a cash  distribution  from
         the  Company in an amount per  surrendered  option  share  equal to the
         excess of (a) the highest  price paid per share of Common Stock paid in
         connection  with the tender offer over (b) the exercise  price  payable
         for such share.

Cancellation/Regrant Program

The Plan  Administrator  will also have the authority to effect the cancellation
of  outstanding  options  under the Option  Plan which have  exercise  prices in
excess  of the then  current  market  price  of the  Common  Stock  and to issue
replacement  options with an exercise  price based on the lower  current  market
price of Common Stock at the time of the new grant.

On   August   21,   1998,   the  Plan   Administrator   implemented   an  option
cancellation/regrant  program  for  employees  of  the  Company,  excluding  the
Company's executive officers.  Pursuant to that program,  each such employee was
given the opportunity to surrender his or her outstanding options under the Plan
with  exercise  prices in excess of $12.00  per share in return for a new option
grant for the same  number of shares  but with an  exercise  price of $10.00 per
share,  the closing  selling  price per share of Common Stock as reported on the
Nasdaq  National  Market on the  August 21,  1998 grant date of the new  option.
Options for a total of 903,423 shares with a weighted  average exercise price of
$20.66 per share were surrendered for cancellation, and new options for the same
number of shares were granted with the $10.00 per share exercise  price.  To the
extent the  higher-priced  option was  exercisable  for any option shares on the
August 21, 1998 cancellation date, the new option granted in replacement of that
option will become exercisable for those shares upon the optionee's continuation
in service  through August 20, 1999. The option will become  exercisable for the
remaining  option  shares  in  a  series  of  quarterly  installments  over  the
optionee's  period  of  continued  service  with the  Company,  with  each  such
installment  to  become  exercisable  six (6)  months  later  than the date that
installment   was   scheduled  to  become   exercisable   under  the   cancelled
higher-priced option.

                                       11
<PAGE>



                               General Provisions

Acceleration

In the  event  that the  Company  is  acquired  by merger  or asset  sale,  each
outstanding  option  under the Option  Plan,  to the  extent not  assumed by the
successor  corporation or replaced with a cash incentive program  preserving the
spread on the unvested option shares, will automatically accelerate in full, and
all unvested shares issued under the Option Plan will immediately  vest,  except
to the extent the Company's  repurchase  rights with respect to those shares are
to be assigned to the successor  corporation.  Any options assumed in connection
with such acquisition will immediately accelerate, and any unvested shares which
do not vest at the time of such acquisition will immediately  vest, in the event
the individual's  service with the successor  entity is subsequently  terminated
within a specified period  following the  acquisition.  In connection with other
changes in control of the Company  (whether by successful  tender offer for more
than fifty  percent  (50%) of the  outstanding  voting  stock or a change in the
majority of the Board as a result of one or more proxy contests for the election
of Board members), the Plan Administrator will have the discretionary  authority
to provide for automatic  acceleration of outstanding  options and the automatic
vesting of all unvested  shares  outstanding  under the Option  Plan,  with such
acceleration or vesting to occur either at the time of such change in control or
upon the subsequent termination of the individual's service.

The  acceleration  of vesting  upon a change in the  ownership or control of the
Company  may be seen as an  anti-takeover  provision  and may have the effect of
discouraging  a merger  proposal,  a takeover  attempt or other  efforts to gain
control of the Company.

Financial Assistance

The Plan  Administrator  may  institute  a loan  program  to assist  one or more
participants  in financing the exercise of outstanding  options under the Option
Plan.  The Plan  Administrator  will have  complete  discretion to determine the
terms of any such financial assistance. However, the maximum amount of financing
provided any  individual may not exceed the cash  consideration  payable for the
issued shares plus all  applicable  taxes.  Any such financing may be subject to
forgiveness  in whole or in part, at the  discretion of the Plan  Administrator,
over the participant's period of service.

Special Tax Election

The Plan  Administrator  may provide one or more  holders of options or unvested
shares  with the right to have the  Company  withhold  a portion  of the  shares
otherwise  issuable to such individuals in satisfaction of the withholding taxes
to which such  individuals may become subject in connection with the exercise of
those  options  or  the  vesting  of  those  shares.  Alternatively,   the  Plan
Administrator may allow such individuals to deliver  previously  acquired shares
of Common Stock in payment of such tax liability.

                                       12
<PAGE>


Stock Options

The table below shows, as to each of the Company's  executive  officers named in
the Summary Compensation Table and the various indicated individuals and groups,
the number of shares of Common Stock subject to options granted under the Option
Plan  between  January 1, 1998 and March 15,  1999,  together  with the weighted
average  exercise  price  payable per share.  The number of shares and  weighted
average  exercise  price  calculations  include all options  which were  granted
during the indicated period and subsequently  cancelled and regranted at a lower
exercise price per share on August 21, 1998.



                          OPTION TRANSACTIONS


                               Options Granted     Weighted Average         
Name                          (Number of Shares)   Exercise Price ($)
- ----------------------------  ------------------   ------------------

Eliyahou Harari                    100,000              12.50

Daniel Auclair                      15,000              12.50

Cindy Burgdorf                      50,000              12.50

Leon Malmed                         50,000              12.50

Ralph Hudson                       110,000               8.5227

Marianne Jackson                         0               0

All executive officers 
as a group (6)                     325,000              11.1538

All non-employee directors
as a group                               0               0

All employees, including 
current officers who are not  
executive officers as a 
group (469)                      1,871,358              12.1019



As of March 15, 1999,  options  covering  3,839,354  shares of Common Stock were
outstanding  under the Option Plan,  3,968,962  shares  remained  available  for
future  option  grant,  assuming  stockholder  approval  of the  3,500,000-share
increase  which  forms part of this  Proposal,  and  1,690,395  shares have been
issued under the Option Plan.

Amendment and Termination

The Board may amend or modify the Option Plan in any or all respects whatsoever,
subject to any required stockholder approval. The Board may terminate the Option
Plan at any time,  and the Option Plan will in all events  terminate on July 24,
2005.

                         Federal Income Tax Consequences

Option Grants

Options  granted  under the Option Plan may be either  incentive  stock  options
which satisfy the  requirements  of Section 422 of the Internal  Revenue Code or
non-statutory  options  which are not  intended to meet such  requirements.  The
Federal income tax treatment for the two types of options differs as follows:

                                       13
<PAGE>



Incentive  Options.  No taxable income is recognized by the optionee at the time
of the option grant,  and no taxable income is generally  recognized at the time
the option is exercised. The optionee will, however, recognize taxable income in
the year in which the purchased shares are sold or otherwise made the subject of
a taxable disposition.  For Federal tax purposes,  dispositions are divided into
two categories: (i) qualifying and (ii) disqualifying.  A qualifying disposition
occurs if the sale or other  disposition is made after the optionee has held the
shares for more than two (2) years after the option grant date and more than one
(1) year after the exercise date. If either of these two holding  periods is not
satisfied, then a disqualifying disposition will result.

Upon a qualifying  disposition,  the optionee will recognize  long-term  capital
gain in an amount equal to the excess of (i) the amount  realized  upon the sale
or other  disposition of the purchased  shares over (ii) the exercise price paid
for the shares. If there is a disqualifying  disposition of the shares, then the
excess of (i) the fair market value of those  shares on the  exercise  date over
(ii) the exercise  price paid for the shares will be taxable as ordinary  income
to the optionee.  Any additional  gain or loss  recognized  upon the disposition
will be recognized as a capital gain or loss by the optionee.

If the optionee makes a disqualifying  disposition of the purchased shares, then
the Company will be entitled to an income tax deduction, for the taxable year in
which such disposition occurs,  equal to the excess of (i) the fair market value
of such shares on the option exercise date over (ii) the exercise price paid for
the shares.  In no other  instance will the Company be allowed a deduction  with
respect to the optionee's disposition of the purchased shares.

Non-Statutory  Options.  No taxable income is recognized by an optionee upon the
grant of a non-statutory option. The optionee will in general recognize ordinary
income, in the year in which the option is exercised, equal to the excess of the
fair market value of the purchased shares on the exercise date over the exercise
price paid for the shares,  and the optionee will be required to satisfy the tax
withholding requirements applicable to such income.

If the shares  acquired upon exercise of the  non-statutory  option are unvested
and  subject  to  repurchase  by the  Company  in the  event  of the  optionee's
termination of service prior to vesting in those shares,  then the optionee will
not recognize any taxable income at the time of exercise but will have to report
as ordinary income, as and when the Company's repurchase right lapses, an amount
equal to the excess of (i) the fair  market  value of the shares on the date the
repurchase  right lapses over (ii) the exercise  price paid for the shares.  The
optionee may, however, elect under Section 83(b) of the Internal Revenue Code to
include as ordinary income in the year of exercise of the option an amount equal
to the  excess  of (i) the fair  market  value of the  purchased  shares  on the
exercise date over (ii) the exercise price paid for such shares.  If the Section
83(b) election is made, the optionee will not recognize any additional income as
and when the repurchase right lapses.

The Company will be entitled to an income tax  deduction  equal to the amount of
ordinary  income  recognized  by the  optionee  with  respect  to the  exercised
non-statutory  option.  The deduction will in general be allowed for the taxable
year of the Company in which such ordinary income is recognized by the optionee.

Stock Appreciation Rights

An optionee who is granted a stock  appreciation  right will recognize  ordinary
income  in the  year  of  exercise  equal  to  the  amount  of the  appreciation
distribution.  The Company will be entitled to an income tax deduction  equal to
such  distribution  for the  taxable  year  in  which  the  ordinary  income  is
recognized by the optionee.

Deductibility of Executive Compensation

The Company  anticipates that any  compensation  deemed paid by it in connection
with disqualifying dispositions of incentive stock option shares or exercises of
non-statutory  options  granted  with  exercise  prices equal to the fair market
value of the option  shares on the grant date will qualify as  performance-based
compensation  for purposes of Code Section  162(m) and will not have to be taken
into  account for  purposes  of the $1 million  maximum  limitation  per covered
individual on the  deductibility of the compensation  paid to certain  executive
officers of the Company.  Accordingly, all compensation deemed paid with respect
to those options will remain deductible by the Company without  limitation under
Code Section 162(m).



                                       14
<PAGE>


                              Accounting Treatment

Option grants with exercise prices less than the fair market value of the shares
on the  grant  date will  result  in a  compensation  expense  to the  Company's
earnings equal to the difference  between the exercise price and the fair market
value of the shares on the grant date.  Such  expense  will be  accruable by the
Company over the period that the option  shares are to vest.  Option grants with
exercise  prices  equal to the fair market value of the shares on the grant date
will not result in any charge to the  Company's  earnings,  but the Company must
disclose, in footnotes to the Company's financial  statements,  the impact those
options would have upon the Company's  reported  earnings were the fair value of
those  options  treated as  compensation  expense.  Whether or not  granted at a
discount,  the number of outstanding  options may be a factor in determining the
Company's earnings per share on a fully-diluted basis.

The Financial  Accounting  Standards  Board recently  announced its intention to
issue an exposure draft of a proposed  interpretation of the current  accounting
principles  applicable to equity  incentive plans such as the Option Plan. Under
the proposed interpretation, option grants made to non-employee Board members or
consultants  after  December  15,  1998 will  result  in a direct  charge to the
Company's  reported  earnings  based upon the fair value of the option  measured
initially  as of the grant  date of that  option  and then  subsequently  on the
vesting  date  of each  installment  of the  underlying  option  shares.  If the
proposed  interpretation is adopted,  then such charge will accordingly  include
the  appreciation  in the value of the option shares over the period between the
grant  date of the  option  (or,  if  later,  the  effective  date of the  final
interpretation)  and the vesting date of each  installment of the option shares.
In addition,  if the proposed  interpretation is adopted,  any options which are
repriced  after  December  15,  1998  will also  trigger a direct  charge to the
Company's  reported  earnings  measured  by the  appreciation  in  value  of the
underlying  shares  between  the grant date of the  option  (or,  if later,  the
effective date of the final interpretation) and the date the option is exercised
for those shares.

Should one or more individuals be granted tandem stock appreciation rights under
the option plan,  then such rights would result in a compensation  expense to be
charged against the Company's reported earnings. Accordingly, at the end of each
fiscal quarter, the amount (if any) by which the fair market value of the shares
of common  stock  subject  to such  outstanding  stock  appreciation  rights has
increased from the prior quarter-end  would be accrued as compensation  expense,
to the extent  such fair  market  value is in excess of the  aggregate  exercise
price in effect for those rights.

                                New Plan Benefits

As of March 15,  1999,  no options have been granted to date on the basis of the
3,500,000-share increase to the Option Plan which forms part of this Proposal.

                              Stockholder Approval

The  affirmative  vote of a majority  of the  outstanding  voting  shares of the
Company  present or  represented  and entitled to vote at the Annual  Meeting is
required to approve the  amendment to the Option Plan.  Should such  stockholder
approval not be obtained, then any options granted on the basis of the 3,500,000
share increase which forms part of this Proposal will terminate without becoming
exercisable for any of the shares of Common Stock subject to those options,  and
no  further  options  will be made on the  basis  of  such  share  increase.  In
addition,  the automatic  annual share  increase  feature  pursuant to which the
number of shares  available for issuance under the Option Plan would increase on
the first trading day of January each  calendar  year,  beginning  with calendar
year 2002 and  continuing  over the  remaining  term of the Option  Plan,  by an
amount  equal to four and  thirty-six  hundredths  percent  (4.36%) of the total
number  of  shares  outstanding  on the  last  trading  day in  December  in the
immediately preceding calendar year will not be implemented. However, the Option
Plan will  continue to remain in effect,  and option  grants may  continue to be
made pursuant to the provisions of the Option Plan prior to the amendment  until
the available  reserve of Common Stock under the Option Plan as last approved by
the stockholders is issued.

THE BOARD OF DIRECTORS RECOMMENDS THAT THE STOCKHOLDERS VOTE FOR THE AMENDMENTS 
TO THE OPTION PLAN.

                                       15
<PAGE>


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

                                 PROPOSAL NO. 3:

                             APPROVAL OF AMENDMENTS
              TO THE 1995 NON-EMPLOYEE DIRECTORS STOCK OPTION PLAN
         --------------------------------------------------------------

The Company's  stockholders are being asked to approve a series of amendments to
the Company's  1995  Non-Employee  Directors  Stock Option Plan (the  "Directors
Plan") which will effect the following changes:

(i)               The maximum  number of shares of Common Stock  authorized  for
                  issuance over the term of the Directors Plan will be increased
                  by an additional 200,000 shares.

(ii)              An  automatic  share  increase  feature  will  be  implemented
                  pursuant to which the number of shares  available for issuance
                  under the Directors  Plan will  automatically  increase on the
                  first  trading day in January each  calendar  year,  beginning
                  with calendar year 2002 and continuing over the remaining term
                  of the Directors Plan, by an amount equal to two tenths of one
                  percent  (0.2%) of the total number of shares  outstanding  on
                  the last trading day in December in the immediately  preceding
                  calendar year,  but in no event will any such annual  increase
                  exceed 75,000 shares.

(iii)             Each  individual  who  is  first  elected  or  appointed  as a
                  non-employee   Board  member  at  or  after  the  1999  Annual
                  Stockholders  Meeting will  automatically  be granted,  on the
                  date of such initial election or appointment,  a non-statutory
                  stock  option to  purchase  32,000  shares  of  Common  Stock.
                  Previously,  newly  elected or  appointed  non-employee  Board
                  members  received an initial option grant for 16,000 shares of
                  Common Stock.

(iv)              On the date of each  Annual  Stockholders  Meeting,  beginning
                  with  the  1999  Annual  Meeting,  each  individual  who is to
                  continue  to  serve  as  a  non-employee   Board  member  will
                  automatically  be granted,  whether or not such  individual is
                  standing  for  re-election  as a Board  member at that  Annual
                  Meeting,   a   non-statutory   stock  option  to  purchase  an
                  additional  8,000  shares  of  Common  Stock,   provided  such
                  individual  has served as a  non-employee  Board member for at
                  least  six (6)  months  prior to the  date.  Previously,  such
                  annual  option  grants  were for only  4,000  shares of Common
                  Stock.

The  amendments  will  allow  the  Company  to  offer a more  meaningful  equity
compensation package in order to attract and retain highly-qualified individuals
to serve as non-employee Board members. The amendments were adopted by the Board
in  December 1998,  subject to  stockholder  approval  at the 1999  Annual
Meeting.

The  following is a summary of the  principal  features of the  Directors  Plan,
together with the applicable tax and accounting  implications,  which will be in
effect if the amendments to the Directors Plan are approved by the stockholders.
However,  the summary does not purport to be a complete  description  of all the
provisions of the Directors  Plan. Any  stockholder of the Company who wishes to
obtain a copy of the actual plan document may do so upon written  request to the
Secretary at the Company's principal executive offices in Sunnyvale, California.

The terms and  conditions of each automatic  option grant  (including the timing
and pricing of the option grant) are determined by the express provisions of the
Directors  Plan.  Neither the Board nor any  committee of the Board will perform
any discretionary  functions under the Directors Plan.  Stockholder  approval of
this Proposal  will also  constitute  approval of each option  granted under the
Directors Plan at or after the 1999 Annual  Meeting and the subsequent  exercise
of that option in accordance  with the terms of the Directors  Plan described in
this Proposal.


                                       16
<PAGE>


Share Reserve

A total of 400,000  shares of Common Stock has been  reserved for issuance  over
the ten-year term of the Directors Plan,  including the  200,000-share  increase
which forms part of this Proposal.  In addition,  upon  stockholder  approval of
this Proposal,  the number of shares  available for issuance under the Directors
Plan will  automatically  increase  on the first  trading  day in  January  each
calendar  year,  beginning  with  calendar  year  2002 and  continuing  over the
remaining  term of the  Directors  Plan, by an amount equal to two tenths of one
percent (0.2%) of the total number of shares of Common Stock  outstanding on the
last trading day in December in the immediately  preceding calendar year, but in
no event will any such  annual  increase  exceed  75,000  shares.  The shares of
Common  Stock  issuable  under the  Directors  Plan may be made  available  from
authorized but unissued  shares of the Company's  Common Stock or from shares of
Common Stock  repurchased by the Company,  including  shares  repurchased on the
open market.

Should an option  expire or terminate  for any reason prior to exercise in full,
the shares  subject  to the  portion  of the  option  not so  exercised  will be
available  for  subsequent  issuance  under the  Directors  Plan.  In  addition,
unvested shares issued under the Directors Plan and subsequently  repurchased by
the  Company at the option  exercise  price paid per share will be added back to
the share  reserve and will  accordingly  be available for  subsequent  issuance
under the Directors Plan.  However,  shares subject to any option surrendered in
accordance with the option  surrender  provisions of the Directors Plan will not
be available for subsequent issuance.

Changes in Capitalization

In the event any  change is made to the  outstanding  shares of Common  Stock by
reason of any  recapitalization,  stock  dividend,  stock split,  combination of
shares,  exchange  of shares or other  change in  corporate  structure  effected
without the Company's receipt of consideration,  appropriate adjustments will be
made to (i) the  maximum  number  and  class of  securities  issuable  under the
Directors  Plan,  (ii) the maximum  number and class of  securities by which the
share reserve may increase in any calendar year by reason of the automatic share
increase  provisions  of the  Directors  Plan,  (iii)  the  number  and class of
securities for which option grants are  subsequently to be made to newly-elected
or  continuing  non-employee  Board  members  and (iv) the  number  and class of
securities  and the exercise  price per share in effect  under each  outstanding
option.

Eligibility

Only non-employee  Board members will be eligible to receive option grants under
the Directors  Plan. As of March 15, 1999,  six (6)  non-employee  Board members
were eligible to participate in the Directors Plan.

Valuation

The fair market value per share of Common  Stock on any relevant  date under the
Directors  Plan will be the closing  selling price per share on that date on the
Nasdaq National  Market.  On March 15, 1999, the closing selling price per share
was $36.00.

                                  Option Grants

Under the terms of the amended Directors Plan, each individual who first becomes
a non-employee Board member at or after the 1999 Annual Meeting, whether through
election by the stockholders or appointment by the Board, will  automatically be
granted,  at the time of such initial  election or appointment,  a non-statutory
stock option to purchase 32,000 shares of Common Stock, provided such individual
has not previously been in the Company's employ. In addition,  each non-employee
Board member who is to continue to serve on the Board will receive a 8,000-share
automatic  option  grant  on the  date  of  each  Annual  Stockholders  Meeting,
beginning with the 1999 Annual Meeting, provided such individual has served as a
non-employee Board member for at least six (6) months. There will be no limit on
the number of such  8,000-share  option grants that any one  non-employee  Board
member may receive  over his or her period of Board  service,  and  non-employee
Board  members who have been in the prior employ of the Company will be eligible
to receive one or more of those annual grants.

                                       17
<PAGE>



Each  option  will have an  exercise  price per share  equal to 100% of the fair
market  value per share of Common Stock on the grant date.  The  exercise  price
will be payable in cash or in shares of Common Stock or through a same-day  sale
program with no cash outlay by the optionee. The option will have a maximum term
of ten (10) years measured from the grant date,  subject to earlier  termination
at the  end of the  twelve  (12)-month  period  measured  from  the  date of the
optionee's  cessation  of  Board  service.   Each  option  will  be  immediately
exercisable for any or all of the option shares.  However,  any shares purchased
under the option will be subject to repurchase  by the Company,  at the exercise
price paid per share,  upon the  optionee's  cessation of Board service prior to
vesting in those shares. The shares subject to each initial  32,000-share option
grant  will  vest in four (4)  successive  equal  annual  installments  upon the
optionee's  completion  of each  year of Board  service  over the four  (4)-year
period  measured  from  the  grant  date.  The  shares  subject  to each  annual
8,000-share option grant will vest in full upon the optionee's completion of one
(1) year of Board  service  measured  from the grant  date.  The  option  may be
transferred or assigned during the optionee's lifetime to one or more members of
the optionee's immediate family or to a trust established exclusively for one or
more such family  members,  to the extent  such  transfer  or  assignment  is in
furtherance of the optionee's estate plan.

Vesting Acceleration

The shares subject to each option will  immediately vest upon (i) the optionee's
death or permanent  disability while a Board member,  (ii) an acquisition of the
Company by merger or asset sale,  (iii) the  successful  completion  of a tender
offer for more than fifty  percent  (50%) of the  Company's  outstanding  voting
stock or (iv) a change in the majority of the Board effected through one or more
proxy contests for Board membership. In addition, upon the successful completion
of a hostile  tender offer for more than fifty  percent  (50%) of the  Company's
outstanding  voting  stock,  each  outstanding  automatic  option  grant  may be
surrendered to the Company for a cash distribution per surrendered  option share
in an amount  equal to the excess of (a) the  highest  price per share of Common
Stock paid in  connection  with such tender  offer over (b) the  exercise  price
payable for such share.  Stockholder  approval of this Proposal will  constitute
pre-approval of each such option surrender right subsequently  granted under the
Directors Plan and the subsequent  exercise of that right in accordance with the
terms of the Directors Plan.

The  acceleration  of vesting  upon a change in the  ownership or control of the
Company  may be seen as an  anti-takeover  provision  and may have the effect of
discouraging  a merger  proposal,  a takeover  attempt or other  efforts to gain
control of the Company.

                                       18
<PAGE>


Stock Awards

The table below shows, as to each of the Company's  non-employee  Board members,
the  number of shares of Common  Stock  subject  to  options  granted  under the
Directors Plan between the January 1, 1998 and March 15, 1999, together with the
weighted  average  exercise  price payable per share.  Only  non-employee  Board
members received option grants under the Directors Plan.



                              OPTION TRANSACTIONS




                                         Options Granted    Weighted Average
Name                                    (Number of Shares)   Exercise Price
- --------------------------------------  ------------------  ----------------
Irwin Federman, Chairman                      4,000              20.875

William Campbell                              4,000              20.875

Catherine Lego                                4,000              20.875

James Meindl                                  4,000              20.875

Thomas Mulvaney                              16,000               9.50

Alan Shugart                                  4,000              20.875

Joseph Rizzi (1)                              4,000              20.875

All non-employee directors as a group        40,000              16.325

As of March 15,  1999  options  covering  124,000  shares of Common  Stock  were
outstanding  under the Directors  Plan,  276,000 shares  remained  available for
future option grant  (including the  200,000-share  increase which forms part of
this Proposal) and no shares have been issued under the Directors Plan.

(1) Mr. Rizzi resigned from the Board as of October 22, 1998.

Amendment and Termination

The Board may amend or modify the  provisions of the Directors Plan at any time.
Certain  amendments  to the  Directors  Plan may  require  stockholder  approval
pursuant  to  applicable  laws or  regulations.  The  Board  may  terminate  the
Directors Plan at any time, and the Directors Plan will in all events  terminate
on July 24, 2005.

                         Federal Income Tax Consequences

Options granted under the Directors Plan are all non-statutory options which are
not intended to satisfy the  requirements of Section 422 of the Internal Revenue
Code. The Federal income tax treatment for non-statutory options is as follows:

No taxable income is recognized by an optionee upon the grant of a non-statutory
option.  The optionee will in general recognize  ordinary income, in the year in
which the option is  exercised,  equal to the excess of the fair market value of
the purchased  shares on the exercise date over the exercise  price paid for the
shares.


                                       19
<PAGE>


If the shares  acquired upon exercise of the  non-statutory  option are unvested
and  subject  to  repurchase  by the  Company  in the  event  of the  optionee's
termination of service prior to vesting in those shares,  then the optionee will
not recognize any taxable income at the time of exercise but will have to report
as ordinary income, as and when those shares vest, an amount equal to the excess
of (i) the fair  market  value of the  shares at time of  vesting  over (ii) the
exercise  price paid for those shares.  The optionee may,  however,  elect under
Section 83(b) of the Internal Revenue Code to include as ordinary income, in the
year in which the option is exercised,  an amount equal to the excess of (i) the
fair market value of the  purchased  shares on the  exercise  date over (ii) the
exercise price paid for such shares.  If the Section 83(b) election is made, the
optionee  will not  recognize  any  additional  income  as and  when the  shares
subsequently vest.

The Company will be entitled to an income tax  deduction  equal to the amount of
ordinary  income  recognized  by the  optionee  with  respect  to the  exercised
non-statutory  option.  The deduction will in general be allowed for the taxable
year of the Company in which such ordinary income is recognized by the optionee.

                              Accounting Treatment

Under current accounting principles, option grants to non-employee Board members
with  exercise  prices equal to the fair market value of the shares on the grant
date will not result in any charge to the  Company's  earnings,  but the Company
must disclose,  in footnotes to the Company's financial  statements,  the impact
those  options  would have upon the  Company's  reported  earnings were the fair
value of those  options at the time of grant  treated as  compensation  expense.
However,   under  a   recently-proposed   interpretation   of  those  accounting
principles,  option grants made to non-employee Board members after December 15,
1998 will result in a direct charge to the  Company's  reported  earnings  based
upon the fair value of the  option  measured  initially  as of the grant date of
that option and then subsequently on the vesting date of each installment of the
underlying option shares. If the proposed interpretation is adopted, such charge
will accordingly include the appreciation in the value of the option shares over
the period  between the grant date of the option (or,  if later,  the  effective
date of the final  interpretation)  and the vesting date of each  installment of
the  option  shares.  Whether  or not  granted  at a  discount,  the  number  of
outstanding  options may be a factor in determining  the Company's  earnings per
share on a fully-diluted basis.
                                New Plan Benefits

No option  grants have been made on the basis of the  200,000-share  increase to
the  Directors  Plan  which  forms  part of this  Proposal.  At the 1999  Annual
Meeting,  each of the following  non-employee Board members who will continue to
serve in such capacity will automatically be granted an option to purchase 8,000
shares of Common  Stock at an  exercise  price  per share  equal to the  closing
selling  price per share of Common Stock on that grant date:  Messrs:  Federman,
Campbell, Meindl, Mulvaney, Shugart and Ms. Lego.

                              Stockholder Approval

The  affirmative  vote of a majority  of the  outstanding  voting  shares of the
Company  present or  represented  and entitled to vote at the Annual  Meeting is
required  to  approve  the  amendments  to  the  Directors  Plan.   Should  such
stockholder approval not be obtained,  then none of the changes to the Directors
Plan will be implemented.  Accordingly,  each of the non-employee  Board members
who are re-elected at the 1999 Annual  Meeting will receive an automatic  option
grant for 4,000  shares at that  meeting,  and the newly  elected  or  appointed
non-employee  Board  members will each receive an option grant for 16,000 shares
at the time they first join the Board. In addition,  the share reserve under the
Directors Plan will remain limited to 200,000 shares.

THE BOARD OF DIRECTORS RECOMMENDS THAT THE STOCKHOLDERS VOTE FOR THE AMENDMENTS 
TO THE DIRECTORS PLAN.

                                       20
<PAGE>


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

                                 PROPOSAL NO. 4:

                              APPROVAL OF AMENDMENT
                       TO THE EMPLOYEE STOCK PURCHASE PLAN
                 -----------------------------------------------

The  Company's  stockholders  are being  asked to  approve an  amendment  to the
Company's  Employee  Stock  Purchase  Plan (the  "Purchase  Plan") that will (i)
increase the maximum  number of shares of Common Stock  authorized  for issuance
over the term of the Purchase Plan by an additional 300,000 shares to a total of
1,183,333 shares and (ii) implement an automatic share increase feature pursuant
to which the number of shares  available  for issuance  under the Purchase  Plan
will  automatically  increase on the first  trading day in January each calendar
year,  beginning with calendar year 2002 and continuing  over the remaining term
of the  Purchase  Plan,  by an amount  equal to  forty-three  hundredths  of one
percent  (0.43%) of the total number of shares  outstanding  on the last trading
day in December in the immediately preceding calendar year, but in no event will
any such annual increase  exceed 150,000  shares.  The amendment to the Purchase
Plan was  adopted  by the  Board of  Directors  in  December  1998,  subject  to
stockholder approval at the 1999 Annual Meeting.

The  amendment  will allow the Company to maintain a  sufficient  share  reserve
under the  Purchase  Plan so that  eligible  employees  of the  Company  and its
participating  affiliates  will continue to have the  opportunity  to acquire an
equity  interest in the Company and thereby  further align their  interests with
those of the stockholders.

The terms and  provisions  of the  Purchase  Plan as most  recently  amended are
summarized  below.  This  summary,  however,  does not  purport to be a complete
description  of the  Purchase  Plan.  Copies of the actual plan  document may be
obtained  by any  stockholder  upon  written  request  to the  Secretary  at the
Company's principal offices in Sunnyvale, California.

Administration

The Purchase Plan is  administered by the  Compensation  Committee of the Board.
Such   committee,   as  Plan   Administrator,   has  full   authority  to  adopt
administrative  rules and  procedures  and to interpret  the  provisions  of the
Purchase Plan. All costs and expenses incurred in plan  administration  are paid
by the Company without charge to participants.

Securities Subject to the Purchase Plan

If the  300,000-share  increase which forms part of this Proposal is approved at
the Annual Meeting, then the total number of shares of Common Stock reserved for
issuance in the  aggregate  over the term of the Purchase Plan and the Company's
International Employee Stock Purchase Plan, a comparable stock purchase plan for
employees of the Company's foreign subsidiaries who are not residing in the U.S.
(the "International Plan"), will be increased to 1,183,333 shares.  Accordingly,
stockholder  approval  of this  Proposal  will also result in an increase to the
number of shares of Common Stock issuable under the International  Plan, subject
to the aggregate  limitation of 1,183,333  issuable shares over the term of this
Plan and the International Plan. In addition,  upon stockholder approval of this
Proposal, the number of shares available for issuance under the combined reserve
under the Purchase Plan and the International Plan will  automatically  increase
on the first trading day in January each calendar year,  beginning with calendar
year 2002 and  continuing  over the remaining  term of the Purchase  Plan, by an
amount  equal to  forty-three  hundredths  of one  percent  (0.43%) of the total
number of shares of Common Stock outstanding on the last trading day in December
in the immediately preceding calendar year, but in no event will any such annual
increase exceed 150,000 shares. The shares may be made available from authorized
but unissued shares of the Company's Common Stock or from shares of Common Stock
repurchased by the Company, including shares repurchased on the open market.

In the event that any change is made to the Company's  outstanding  Common Stock
(whether  by  reason  of any  recapitalization,  stock  dividend,  stock  split,
exchange  or  combination  of shares  or other  change  in  corporate  structure
effected   without  the  Company's   receipt  of   consideration),   appropriate
adjustments  will be made to (i) the class  and  maximum  number  of  securities
issuable  in  the  aggregate  over  the  term  of  the  Purchase  Plan  and  the
International Plan, (ii) the maximum number and class of

                                       21
<PAGE>


securities  by which the combined  share  reserve  under the  Purchase  Plan and
International  Plan may increase in any calendar year by reason of the automatic
share  increase  provisions  of the Purchase  Plan,  (iii) the class and maximum
number of securities purchasable per participant on any one semi-annual purchase
date and (iv) the class  and  number  of  securities  and the price per share in
effect under each outstanding purchase right.

Purchase Periods and Purchase Rights

Shares of Common Stock are offered  under the Purchase  Plan through a series of
successive  offering periods.  Each such offering period will have a duration of
six (6) months.  The offering  periods  will start on the first  business day in
February and August each year, and each such offering  period will have a single
purchase  date that  coincides  with the last business day of that six (6)-month
offering period.  For example,  the current offering period began on February 1,
1999 and will end on July 30,  1999.  That  latter date will also be the date on
which the shares for the current offering period will be purchased.

Eligibility and Participation

Any  individual  who is employed  on a basis under which he or she is  regularly
expected to work for more than twenty (20) hours per week for more than five (5)
months  per  calendar  year in the employ of the  Company  or any  participating
parent or subsidiary  corporation  (including any corporation which subsequently
becomes  such at any time during the term of the  Purchase  Plan) is eligible to
participate in the Purchase Plan.

Only  individuals who are eligible  employees at the start of an offering period
may join that offering  period.  At the time the participant  joins the offering
period,  he or she will be granted a purchase  right to acquire shares of Common
Stock on the purchase date for that offering  period.  Purchase dates will occur
on the  last  business  day in  January  and July  each  year,  and all  payroll
deductions  collected from the  participant for the period ending with each such
purchase date will automatically be applied to the purchase of Common Stock.

As of March 15, 1999, the Company  estimated that  approximately  474 employees,
including 5 executive  officers,  were eligible to  participate  in the Purchase
Plan.

Purchase Price

The purchase  price of the Common Stock  acquired on each  semi-annual  purchase
date will be equal to 85% of the lower of (i) the fair market value per share of
Common  Stock on the start date of the  offering  period or (ii) the fair market
value on that purchase date.

The fair market value per share of Common Stock on any particular date under the
Purchase Plan will be deemed to be equal to the closing  selling price per share
on such date on the Nasdaq  National  Market.  On March 15,  1999,  the  closing
selling  price per share of  Common  Stock on the  Nasdaq  National  Market  was
$36.00.

Payroll Deductions and Stock Purchases

Each participant may authorize periodic payroll deductions in any multiple of 1%
(up to a  maximum  of 10%) of his or her cash  compensation  (base  salary  plus
bonus,  overtime and  commissions)  to be applied to the  acquisition  of Common
Stock at semi-annual intervals.  Accordingly,  on each semi-annual purchase date
(the last business day in January and July each year),  the accumulated  payroll
deductions of each participant will  automatically be applied to the purchase of
whole shares of Common Stock at the purchase price in effect for the participant
for that purchase date.


                                       22
<PAGE>


Special Limitations

The Purchase Plan imposes certain  limitations  upon a  participant's  rights to
acquire Common Stock, including the following limitations:
      -       Purchase  rights  granted to a  participant  may not  permit  such
              individual  to purchase  more than  $25,000  worth of Common Stock
              (valued  at the time  each  purchase  right is  granted)  for each
              calendar year those purchase rights are outstanding at any time.

      -       Purchase  rights  may not be  granted  to any  individual  if such
              individual  would,  immediately  after  the  grant,  own  or  hold
              outstanding options or other rights to purchase,  stock possessing
              five  percent (5%) or more of the total  combined  voting power or
              value  of  all  classes  of  stock  of the  Company  or any of its
              affiliates.

      -       No  participant  may purchase more than 750 shares of Common Stock
              on any one purchase  date.  However,  the Plan  Administrator  may
              increase or decrease  this per  participant  limit as of the start
              date of any new offering period under the Purchase Plan.

Termination of Purchase Rights

The  participant may withdraw from the Purchase Plan at any time, and his or her
accumulated  payroll deductions will, at the participant's  election,  either be
applied  to the  purchase  of shares on the next  semi-annual  purchase  date or
refunded.

The  participant's  purchase  right will  immediately  terminate upon his or her
cessation  of  employment  or loss of  eligible  employee  status.  Any  payroll
deductions  which the participant  may have made for the  semi-annual  period in
which  such  cessation  of  employment  or loss of  eligibility  occurs  will be
refunded and will not be applied to the purchase of Common Stock.

Stockholder Rights

No  participant  will have any  stockholder  rights  with  respect to the shares
covered by his or her purchase rights until the shares are actually purchased on
the   participant's   behalf.   No  adjustment   will  be  made  for  dividends,
distributions  or other rights for which the record date is prior to the date of
such purchase.

Assignability

No purchase rights will be assignable or transferable  by the  participant,  and
the purchase rights will be exercisable only by the participant.

Change in Control

In the event the Company is acquired  by merger or asset sale,  all  outstanding
purchase  rights  will  automatically  be  exercised  immediately  prior  to the
effective date of such  acquisition.  The purchase price will be equal to 85% of
the lower of (i) the fair  market  value per share of Common  Stock on the start
date of the offering  period in which such  acquisition  occurs or (ii) the fair
market value per share of Common Stock immediately prior to such acquisition

Share Pro-Ration

Should the total number of shares of Common  Stock to be  purchased  pursuant to
outstanding  purchase  rights on any particular date exceed the number of shares
then available for issuance under the Purchase Plan, then the Plan Administrator
will make a  pro-rata  allocation  of the  available  shares  on a  uniform  and
nondiscriminatory basis, and the payroll deductions of each participant,  to the
extent in excess of the  aggregate  purchase  price payable for the Common Stock
pro-rated to such individual, will be refunded.


                                       23
<PAGE>


Amendment and Termination

The Purchase Plan will  terminate upon the earliest of (i) the last business day
in July,  2005,  (ii)  the  date on which  all  shares  available  for  issuance
thereunder are sold pursuant to exercised  purchase  rights or (iii) the date on
which all purchase rights are exercised in connection with an acquisition of the
Company.

The Board may at any time  alter,  suspend or  discontinue  the  Purchase  Plan.
However,  the Board may not,  without  stockholder  approval,  (i)  increase the
number of shares  issuable  under the Purchase Plan,  except in connection  with
certain  changes in the  Company's  capital  structure,  (ii) alter the purchase
price  formula  so  as  to  reduce  the  purchase  price  or  (iii)  modify  the
requirements for eligibility to participate in the Purchase Plan.

Federal Tax Consequences

The Purchase Plan is intended to be an "employee stock purchase plan" within the
meaning of  Section  423 of the  Internal  Revenue  Code.  Under a plan which so
qualifies,  no  taxable  income  will be  recognized  by a  participant,  and no
deductions  will be  allowable  to the  Company,  upon  either  the grant or the
exercise of the purchase  rights.  Taxable  income will not be recognized  until
there is a sale or other  disposition of the shares  acquired under the Purchase
Plan or in the event the participant should die while still owning the purchased
shares.

If the participant  sells or otherwise  disposes of the purchased  shares within
two (2) years  after the start of the  offering  period in which such shares are
acquired,  then the  participant  will recognize  ordinary income in the year of
sale or  disposition  equal to the amount by which the fair market  value of the
shares on the purchase date  exceeded the purchase  price paid for those shares,
and the Company  will be entitled  to an income tax  deduction,  for the taxable
year in which such disposition occurs, equal in amount to such excess.

If the participant  sells or disposes of the purchased  shares more than two (2)
years  after the start  date of the  offering  period  in which the  shares  are
acquired,  then the  participant  will recognize  ordinary income in the year of
sale or  disposition  equal to the  lesser  of (i) the  amount by which the fair
market value of the shares on the sale or disposition date exceeded the purchase
price paid for those  shares or (ii)  fifteen  percent  (15%) of the fair market
value of the shares on the  participant's  entry date into that offering period;
and any  additional  gain  upon the  disposition  will be  taxed as a  long-term
capital gain.  The Company will not be entitled to an income tax deduction  with
respect to such disposition.

If the  participant  still owns the purchased  shares at the time of death,  the
lesser of (i) the  amount by which the fair  market  value of the  shares on the
date of death  exceeds the purchase  price or (ii) fifteen  percent (15%) of the
fair  market  value of the  shares  on his or her entry  date into the  offering
period in which those shares were acquired will  constitute  ordinary  income in
the year of death.

Accounting Treatment

The  issuance  of Common  Stock  under the  Purchase  Plan will not  result in a
compensation   expense  chargeable  against  the  Company's  reported  earnings.
However,  the Company must  disclose,  in pro-forma  statements to the Company's
financial statements,  the impact the purchase rights granted under the Purchase
Plan would have upon the  Company's  reported  earnings  were the value of those
purchase rights treated as compensation expense.

                                       24
<PAGE>


Stock Issuances

The table below shows, as to each of the Company's  executive  officers named in
the Summary  Compensation  Table and the various indicated groups, the number of
shares of Common Stock purchased under the Purchase Plan between January 1, 1998
and March 15, 1999,  together with the weighted  average purchase price paid per
share.


                     PURCHASE PLAN TRANSACTIONS


                                      Number of    Weighted
                                      Purchased    Average
            Name                      Shares       Purchase Price
- ------------------------------------  ----------   --------------

Dr. Eli Harari, 
President and
Chief Executive Officer                   750       8.8188

Cindy Burgdorf
Chief Financial Officer, 
Senior Vice President,                
Finance and Administration              2,072      11.1542

Leon Malmed 
Senior Vice President, 
Marketing and Sales                     2,120      11.2866

Daniel Auclair 
Senior Vice President, 
Business Development and      
Technology Licensing                    2,044      11.0742

Ralph Hudson 
Senior Vice President, 
Operations                                  0       0

Marianne Jackson 
Vice President, 
Human Resources                         1,001      12.2713

All executive officers 
as a group (6)                          7,987      11.0896

All non-employee directors
as a group(6)                               0       0

All employees, including 
current officers who are not 
executive officers as a group (305)   215,744      10.2618



As of March 15, 1999,  441,878  shares of Common Stock had been issued under the
Purchase Plan, and 741,455 shares were available for future  issuance,  assuming
stockholder  approval  of the  300,000-share  increase  which forms part of this
Proposal.


                                New Plan Benefits

As of March  15,  1999,  no  shares  have  been  purchased  on the  basis of the
300,000-share increase to the Purchase Plan.

                              Stockholder Approval

The  affirmative  vote of a majority  of the  outstanding  voting  shares of the
Company  present or  represented  and entitled to vote at the Annual  Meeting is
required  to approve  the share  increase  to the  Purchase  Plan.  Should  such
stockholder  approval  not be  obtained,  then the  maximum  number of shares of
Common Stock that may be issued over the term of the  Purchase  Plan will remain
at the level of 883,333 shares,  and the automatic share increase feature to the
Purchase Plan will not be implemented.  However, the Purchase Plan will continue
to remain in effect, and stock purchases may continue to be made pursuant to the
provisions  of the  Purchase  Plan until the  available  reserve of Common Stock
under the Purchase Plan is issued.

THE BOARD OF DIRECTORS  RECOMMENDS THAT THE STOCKHOLDERS VOTE FOR THE AMENDMENTS
TO THE PURCHASE PLAN.

                                       25
<PAGE>


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

                                 PROPOSAL NO. 5:

                 RATIFICATION OF INDEPENDENT PUBLIC ACCOUNTANTS
            ---------------------------------------------------------

The Company is asking the  stockholders to ratify the selection of Ernst & Young
LLP as the Company's  independent  public accountants for the fiscal year ending
January 2, 2000. The affirmative vote of the holders of a majority of the shares
represented  and voting at the Annual  Meeting  will be  required  to ratify the
selection of Ernst & Young LLP.

In the  event  the  stockholders  fail to  ratify  the  appointment,  the  Audit
Committee  of the Board of Directors  will  consider it as a direction to select
other auditors for the subsequent  year. Even if the selection is ratified,  the
Board of Directors in its discretion  may direct the  appointment of a different
independent  accounting  firm  at any  time  during  the  year if the  Board  of
Directors  determines  that such a change  would be in the best  interest of the
Company and its stockholders.

Ernst & Young LLP has audited the Company's financial  statements annually since
1991. Its representatives are expected to be present at the Annual Meeting, will
have the  opportunity  to make a statement  if they desire to do so, and will be
available to respond to appropriate questions.

THE BOARD OF DIRECTORS RECOMMENDS THAT THE STOCKHOLDERS VOTE FOR THE PROPOSAL TO
RATIFY THE SELECTION OF ERNST & YOUNG LLP TO SERVE AS THE COMPANY'S  INDEPENDENT
PUBLIC ACCOUNTANTS FOR THE FISCAL YEAR ENDING JANUARY 2, 2000.

                                       26
<PAGE>


                          SECURITY OWNERSHIP OF CERTAIN
                        BENEFICIAL OWNERS AND MANAGEMENT

The following  table sets forth certain  information  regarding the ownership of
the Company's  Common Stock as of March 15, 1999 by (i) all persons known by the
Company to be beneficial  owners of five percent (5%) or more of its outstanding
Common  Stock,  (ii) each director of the Company and each nominee for director,
(iii) the Chief Executive  Officer and each of the four most highly  compensated
executive  officers of the  Company  who are named in the  summary  compensation
table  below,  and (iv) all current  executive  officers  and  directors  of the
Company as a group.

                                                Amount and Nature of
                                               Beneficial Ownership(1)
Name or Group of Beneficial Owners     Number of Shares     Percent Owned(2)

Seagate Technology, Inc...............    6,141,374              22.90%
  Scotts Valley, CA                                       
FMR Corp.(3)..........................    2,965,000              11.06
    Boston, MA
Denver Investment (3).................    1,677,000               6.25
  Denver, CO
Dimensional Fund Advisors, Inc. (3)...    1,703,700               6.35
  Santa Monica, CA
William Campbell (4)..................       51,608                  *
Irwin Federman (5)....................       61,686                  *
Catherine P. Lego (6).................       68,037                  *
Dr. Eli Harari (7)....................    1,318,185               4.92
Dr. James D. Meindl (8)...............       69,665                  *
Thomas F. Mulvaney (9)................    6,157,374              22.96
Alan F. Shugart (10)..................       28,000                  *
Daniel Auclair (11)...................      188,695                  *
Cindy Burgdorf (12)...................      194,257                  *
Leon Malmed (13)......................      132,971                  *
Ralph Hudson..........................            0                  *
Marianne Jackson (14).................       14,083                  *
All directors and executive
officers as a group
(11 persons) (15).....................    8,270,478              30.84

- ---------
 *     Less than 1% of the outstanding Common Stock

(1)    Except as  indicated  in the  footnotes  to this  table and  pursuant  to
       applicable  community  property laws, the persons named in the table have
       sole  voting and  investment  power with  respect to all shares of Common
       Stock. The number of shares  beneficially  owned includes Common Stock of
       which  such  individual  has the right to  acquire  beneficial  ownership
       either currently or within 60 days after March 15, 1999,  including,  but
       not limited to, upon the exercise of an option.

(2)    Percentage of  beneficial  ownership is based upon  26,819,100  shares of
       Common Stock,  all of which were  outstanding on March 15, 1999. For each
       individual,   this  percentage   includes  Common  Stock  of  which  such
       individual has the right to acquire beneficial ownership either currently
       or within 60 days after March 15,  1999,  including,  but not limited to,
       upon the exercise of

                                       27
<PAGE>


       an option;  however, such Common Stock will not be deemed outstanding for
       the purpose of computing the  percentage  owned by any other  individual.
       Such  calculation  is required by General Rule  13d-3(d)(1)(i)  under the
       Securities  Exchange Act of 1934. Based upon a review of 13G filings made
       with the Securities and Exchange  Commission during 1998, the table above
       includes all greater than 5% stockholders.

(3)    Based on a Schedule 13G filed with the SEC in February 1999.

(4)    Includes  12,000 shares owned by Mr.  Campbell in the form of immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(5)    Includes  28,000 shares owned by Mr.  Federman in the form of immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(6)    Includes  12,000  shares  owned by Ms.  Lego in the  form of  immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(7)    Includes  1,085,840 shares held in the name of a trust for the benefit of
       Dr. Harari and his wife. Also includes 206,769 shares owned by Dr. Harari
       in the  form  of  immediately  exercisable  options,  some of  which,  if
       exercised  and  issued,  would be  subject to a  repurchase  right of the
       Company that lapses over time. Also includes 13,333 shares owned directly
       by his son and 11,493  shares held in the name of a trust for the benefit
       of his children.

(8)    Represents  57,665  shares held as community  property in the name of Dr.
       Meindl and his wife.  Also includes  12,000 shares owned by Mr. Meindl in
       the form of immediately  exercisable options, some of which, if exercised
       and issued,  would be subject to a  repurchase  right of the Company that
       lapses over time.

(9)    Includes  16,000 shares owned by Mr.  Mulvaney in the form of immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a  repurchase  right of the  Company  that  lapses  over time.
       Represents  6,141,374 shares  beneficially  owned by Seagate  Technology,
       Inc. ("Seagate").  Mr. Mulvaney is Senior Vice President, General Counsel
       and Secretary of Seagate. Mr. Mulvaney disclaims beneficial  ownership of
       the securities held by Seagate.

(10)   Includes  28,000 shares owned by Mr.  Shugart in the form of  immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(11)   Includes  93,540 shares owned by Mr.  Auclair in the form of  immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a  repurchase  right of the  Company  that  lapses  over time.
       Includes an aggregate  of 8,540 shares owned by his children  held in his
       name as custodian.

(12)   Includes  184,686 shares owned by Ms. Burgdorf in the form of immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(13)   Includes  55,520  shares owned by Mr.  Malmed in the form of  immediately
       exercisable  options,  some of which,  if exercised and issued,  would be
       subject to a repurchase right of the Company that lapses over time.

(14)   Ms. Jackson employment with the Company ended on October 31, 1998.

(15)   Includes  648,515 shares subject to options,  including those  identified
       in notes (4), (5), (6), (7), (8), (9), (10),  (11),  (12), and (13).


                                       28
<PAGE>


           COMPLIANCE WITH SECTION 16(a) OF THE SECURITIES ACT OF 1934

Section 16(a) of the  Securities and Exchange Act of 1934 requires the Company's
directors  and  executive  officers,  and  persons who own more than ten percent
(10%) of a registered class of the Company's equity securities, to file with the
Securities and Exchange  Commission (the "SEC") initial reports of ownership and
reports of changes in ownership of Common Stock and other equity  securities  of
the Company. Officers, directors and greater than ten percent (10%) stockholders
are  required  by SEC  regulations  to furnish  the  Company  with copies of all
Section 16(a) forms they file.

Based upon (i) the copies of Section 16(a)  reports  which the Company  received
from such  persons for their 1998 fiscal year  transactions  in the Common Stock
and their Common Stock holdings, and (ii) the written  representations  received
from one or more of such persons that no annual Form 5 reports were  required to
be filed by them  for the  1998  fiscal  year,  the  Company  believes  that all
executive   officers  and  Board  members  complied  with  all  their  reporting
requirements under Section 16(a) for such fiscal year.


                                    FORM 10-K

The Company filed an Annual Report on Form 10-K with the Securities and Exchange
Commission  on or about March 26, 1999.  Stockholders  may obtain a copy of this
report,  without charge, by writing to Cindy Burgdorf,  Chief Financial Officer,
Senior Vice President,  Finance and Administration and Secretary of the Company,
at the  Company's  principal  executive  offices  located at 140 Caspian  Court,
Sunnyvale, California 94089.

                                       29
<PAGE>


                 EXECUTIVE COMPENSATION AND RELATED INFORMATION

                 Summary of Cash and Certain Other Compensation

The  following  table  provides  certain  summary  information   concerning  the
compensation earned, by (i) the Company's Chief Executive Officer,  (ii) each of
the four other most highly  compensated  executive officers of the Company whose
salary and bonus for the 1998 fiscal year was in excess of  $100,000,  and (iii)
one executive officer who terminated employment during the 1998 fiscal year, for
services rendered in all capacities to the Company and its subsidiaries for each
of the last three fiscal years.  Such individuals will be hereafter  referred to
as the Named  Executive  Officers.  No other  executive  officer  who would have
otherwise  been  included in such table on the basis of salary and bonus  earned
for the 1998 fiscal year has resigned or terminated
employment during that fiscal year.

                           Summary Compensation Table
<TABLE>
<CAPTION>

                                                                         Long-Term
                                                                         Compensation     All Other
                                          Annual Compensation            Awards           Compensation
                                 ------------------------------------    ------------     ------------
                                                                         Securities
Name and Principal                                                       Underlying
Position                          Years    Salary($)(1)   Bonus($)(2)    Options(#)          
- ------------------------------    -----    -----------    -----------    ------------        

<S>                               <C>      <C>            <C>               <C>              <C>
Dr. Eli Harari                    1998     $ 303,529      $ 0               100,000          $ 0
 President and Chief              1997     $ 273,384      $ 208,920         100,000          $ 0
 Executive Officer                1996     $ 232,875      $130,992           75,000          $ 0

Cindy Burgdorf                    1998     $ 196,501      $ 0                50,000          $ 0
 Chief Financial Officer,         1997     $ 189,212      $ 69,309           25,000          $ 0
 Senior Vice President,           1996     $ 174,477      $ 54,806           30,000          $ 0
 Finance and Administration
 and Secretary

Leon Malmed                       1998     $ 215,938      $ 0                50,000          $ 0
 Senior Vice President            1997     $ 210,781      $ 76,047           25,000          $ 0
 Marketing and Sales              1996     $ 195,903      $ 60,636           30,000          $ 0

Daniel Auclair                    1998     $ 202,590      $ 0                15,000          $ 0
 Senior Vice President            1997     $ 197,760      $ 58,677                0          $ 0
 Business Development &           1996     $ 186,464      $ 54,876           30,000          $ 0
 Intellectual Property

Marianne Jackson (3)              1998     $ 138,053      $ 0                     0          $ 0
 Vice President Human             1997     $ 146,967      $ 32,180           12,000          $ 0
 Resources                        1996     $ 138,955      $ 27,363           15,000          $ 0

Ralph Hudson                      1998    $   76,933      $105,772 (4)      110,000          $ 0
 Senior Vice President
 Operations
<FN>
- --------------------
(1) Includes salary deferral contributions to the Company's 401(k) Plan.
(2) Bonus  earned  for  the  year  indicated  but  paid in the  following  year
    (excluding bonus to Mr. Hudson).  
(3) Ms. Jackson terminated her employment with the Company on October 31, 1998. 
(4) Mr. Hudson joined the Company on August 17, 1998 and was paid this one-time 
    hiring bonus.

</FN>
</TABLE>


                                       30
<PAGE>


Stock Options

The following table contains information concerning the stock option grants made
to each of the Named Executive  Officers for fiscal 1998. Except for the limited
stock appreciation rights described in footnote (1) below, no stock appreciation
rights were granted to those individuals during such year.

<TABLE>
<CAPTION>

                                                  Individual Grants
                     Number of                                                  Potential Realizable
                     Securities                                                   Value at Assumed
                     Underlying     % of Total                                  Annual Rates of Stock
                     Options        Options Granted  Exercise                     Price Appreciation
                     Granted        to Employees in  Price        Expiration      For Option Term(6)
Name                 (#)(3)         Fiscal Year(4)   ($/Sh)(5)    Date          5%($)          10%($)
- -----------------    ----------     ---------------  ----------   ----------   -------       ---------
<S>                   <C>                 <C>            <C>        <C>        <C>             <C>    
Cindy Burgdorf        50,000(1)           2.29%          12.50      12/14/08   393,059         996,089
Leon Malmed           50,000(1)           2.29%          12.50      12/14/08   393,059         996,089
Daniel Auclair        15,000(1)           0.69%          12.50      12/14/08   117,917         298,826
Ralph Hudson         100,000(2)           4.58%          8.125        9/8/08   510,977       1,294,916
                      10,000(1)           0.46%          12.50      12/14/08    78,612         199,218
Marianne Jackson           0                 0%            N/A           N/A         0               0

<FN>
(1)  Each option will become  exercisable  for 25% of the option shares upon the
     optionee's  completion  of one year of service  measured  from December 15,
     1998, the vesting commencement date, and the option will become exercisable
     for  the  remaining  shares  in a  series  of  successive  equal  quarterly
     installments  upon  the  optionee's  completion  of each  additional  three
     (3)-month  period of service  with the  Company  over the  36-month  period
     beginning December 15, 1999 and ending December 14, 2002.

(2)  The option will become  exercisable  for 25% of the option  shares upon Mr.
     Hudson's completion of one year of service measured from September 9, 1998,
     the vesting  commencement  date, and the option will become exercisable for
     the remaining shares in a series of successive equal quarterly installments
     upon his completion of each additional  three  (3)-month  period of service
     with the Company over the 36-month period  beginning  September 9, 1999 and
     ending September 8, 2002.

(3)  Each option will become  immediately  exercisable for all the option shares
     upon an  acquisition  of the  Company by merger or asset  sale,  unless the
     option is assumed by the acquiring  entity.  Each option has a maximum term
     of ten (10)  years,  subject  to  earlier  termination  in the event of the
     optionee's  cessation of service with the Company.  Each option  includes a
     limited stock  appreciation  right that will allow the  optionee,  upon the
     acquisition  of 25% or  more  of the  Company's  outstanding  voting  stock
     pursuant  to a  hostile  tender  offer,  to  surrender  that  option to the
     Company,  to the extent the  option is at the time  exercisable  for vested
     shares,  in  exchange  for a cash  distribution  based on the tender  offer
     price.

(4)  The Company granted options to purchase 2,182,058 shares of Common Stock to
     employees  during  1998.  Options for 903,423 of those  shares  represented
     options issued in replacment of higher-price options for the same number of
     shares which were cancelled as part of the August 1998 cancellation/regrant
     program.

(5)  The exercise price may be paid in cash or in shares of the Company's Common
     Stock  valued at fair market value on the  exercise  date.  The Company may
     finance the option exercise by loaning the optionee sufficient funds to pay
     the exercise price for the purchased shares,  together with any federal and
     state income tax liability incurred by the optionee in connection with such
     exercise.

(6)  Potential gains are net of exercise price, but before taxes associated with
     exercise.  There is no assurance  that the actual stock price  appreciation
     over the  10-year  option  term will be at the assumed 5% and 10% levels of
     assumed annual rates of compounded stock price appreciation or at any other
     defined level. Unless the market price of the Common Stock appreciates over
     the option term,  no value will be realized  from the option grants made to
     the executive officers.
</FN>
</TABLE>

                                       31
<PAGE>


Aggregated  Option  Exercises  in Last  Fiscal Year and Fiscal  Year-End  Option
Values

The  following  table sets forth  information  concerning  option  exercises and
option  holdings  for the  1998  fiscal  year by  each  of the  Named  Executive
Officers. Except for the limited stock appreciation rights described in footnote
(1) to the  Stock  Options  table  above,  no  stock  appreciation  rights  were
exercised during such year or were outstanding at the end of that year.

<TABLE>
<CAPTION>


                                                             Number of Securities          
                                                           Underlying Unexercised          Value of Unexercised 
                                                            Options at FY-End (#)    in-the-Money Options at FY-End $(1)            
- ------------------------- ------------- ---------------- --------------------------- -----------------------------------
                             Shares        Aggregate                                    
                          Acquired on        Value                     
       Name               Exercise (#)    Realized($)     Exercisable  Unexercisable   Exercisable     Unexercisable
- ------------------------- ------------- ---------------- ------------- ------------- --------------- ----------------
<S>                           <C>             <C>           <C>              <C>           <C>                <C>    
Eli Harari                           0                0    195,832(2)       212,500       1,192,176          104,688
Cindy Burgdorf                       0                0    181,249(3)        83,750       1,786,867           48,125
Leon Malmed                    114,566        1,718,194      52,083(4)       83,750         240,000           48,125
Daniel Auclair                  51,666          524,369      96,666(5)       34,815         688,945           26,250 
Ralph Hudson                         0                0             0       110,000               0          506,250
Marianne Jackson(6)             39,143          309,886             0             0               0                0


<FN>

(1) Based on the fair market  value of the  Company's  Common  Stock at
    December 24, 1998, $13.125 per share, (the closing selling price of the
    Company's Common Stock on that date on the Nasdaq National Market) less
    the exercise price payable for such shares.

(2) Includes  50,000  shares that are unvested and subject to repurchase by
    the Company.  

(3) Includes  26,666  shares that are unvested and subject to repurchase by 
    the Company. 

(4) Includes 20,695 shares that are unvested and subject to repurchase by the 
    Company.  

(5) Includes  33,333 shares that are unvested  and  subject to  repurchase  
    by the Company.  

(6) Ms.  Jackson's employment with the Company ended on October 31, 1998.
</FN>
</TABLE>



                                       32
<PAGE>


         REPORT OF THE COMPENSATION COMMITTEE ON EXECUTIVE COMPENSATION

The  Compensation  Committee  of the  Board  of  Directors  is  responsible  for
establishing the base salary and incentive cash bonus programs for the Company's
executive  officers and other key  employees  and  administering  certain  other
compensation  programs for such individuals,  subject in each instance to review
by  the  full  Board.  The   Compensation   Committee  also  has  the  exclusive
responsibility  for the  administration  of the Company's 1995 Stock Option Plan
under which  grants may be made to executive  officers and other key  employees.
The  Compensation  Committee is comprised of three  non-employee  Board members,
William V. Campbell and Alan F. Shugart.

GENERAL COMPENSATION POLICY. The overall policy of the Compensation Committee is
to  provide  the  Company's  executive  officers  and other key  employees  with
competitive  compensation  opportunities  based upon their  contribution  to the
financial  success of the  Company  and their  personal  performance.  It is the
Compensation  Committee's  objective  to  have a  substantial  portion  of  each
officer's compensation contingent upon the Company's performance as well as upon
the officer's own level of performance.  Accordingly,  the compensation  package
for each executive officer and key employee is comprised of three elements:  (i)
base salary which reflects  individual  performance and is designed primarily to
be competitive  with salary levels in effect at companies within and outside the
industry  with which the Company  competes  for  executive  talent,  (ii) annual
variable   performance  awards  payable  in  cash  and  tied  to  the  Company's
achievement of financial and individual performance targets, and (iii) long-term
stock-based incentive awards which strengthen the mutuality of interests between
the executive officers and the Company's stockholders. As an executive officer's
level  of  responsibility  increases,  it is  the  intent  of  the  Compensation
Committee  to  have  a  greater   portion  of  the  executive   officer's  total
compensation be dependent upon Company  performance and stock price appreciation
rather than base salary.

Factors.  The principal factors which the Compensation  Committee  considered in
establishing the components of each executive officer's compensation package for
the 1998 fiscal year are  summarized  below.  The  Compensation  Committee  may,
however,  at its  discretion  apply  entirely  different  factors,  particularly
different measures of financial  performance,  in setting executive compensation
for future fiscal years.

* Base Salary. For comparative  compensation  purposes for the 1998 fiscal year,
the  Compensation  Committee  selected  a peer  group of  companies  within  the
industry  which are  comparable in size and growth  pattern with the Company and
which  compete with the Company for executive  talent.  The base salary for each
officer was then  determined on the basis of the following  factors:  the salary
levels  in  effect  for  comparable   positions  at  the  peer  group  companies
(determined  on the  basis  of their  published  1997  fiscal  year  data),  the
experience and personal  performance  of the officer and internal  comparability
considerations.  The  weight  given  to  each of  these  factors  differed  from
individual to individual, as the Compensation Committee deemed appropriate.  The
compensation level for the Company's executive officers for the 1998 fiscal year
ranged from the 50th percentile to the 75th percentile of the base salary levels
in effect for  executive  officers with  comparable  positions at the peer group
companies, based on the published 1997 fiscal year data for those companies.

In  selecting   companies  to  survey  for  such  compensation   purposes,   the
Compensation  Committee  considered  many factors not directly  associated  with
stock  price  performance,  such  as  geographic  location,  development  stage,
organizational  structure and market  capitalization.  For this reason, there is
not a meaningful  correlation  between the  companies  included  within the peer
group  identified  for  comparative  compensation  purposes  and  the  companies
included  within the S&P Electronics  Semiconductor  Index which the Company has
selected  as the  industry  index for  purposes of the stock  performance  graph
appearing later in this Proxy Statement.

* Annual  Incentive  Compensation.  Annual  bonuses are earned by each executive
officer on the basis of the Company's achievement of certain corporate financial
performance  targets  established for the fiscal year and the individual's level
of  performance.  For fiscal year 1998, a minimum of 75% of the bonus target was
measured  on the basis of Company  performance  and the  remainder  of the bonus
target was tied to individual  performance.  Company performance was measured on
the basis of pre-tax  profit  (exclusive of royalties)  and net revenue  targets
established by the Compensation  Committee at the start of the 1998 fiscal year.
Because  these  targets were not met for the year,  no executive  officers  were
awarded  bonuses  for  fiscal  1998 on this basis as  indicated  for them in the
Summary  Compensation  Table  which  appears  earlier in this  proxy  statement.
However, Mr. Hudson was paid a one-time hiring bonus in 1998 as indicated in the
Summary Compensation Table which appears earlier in this proxy statement.


                                       33
<PAGE>


* Long-Term Incentive  Compensation.  Long-term  incentives are provided through
stock  option  grants.  The grants are  designed to align the  interests of each
executive  officer with those of the  stockholders  and provide each  individual
with a significant  incentive to manage the Company from the  perspective  of an
owner with an equity stake in the business.  Each grant allows the individual to
acquire  shares of the  Company's  common  stock at a fixed price per share (the
market  price on the  grant  date)  over a  specified  period  of time (up to 10
years).  Each option  generally  becomes  exercisable in  installments  over the
executive  officer's  continued  employment with the Company.  Accordingly,  the
option will  provide a return to the  executive  officer  only if the  executive
officer  remains  employed by the Company during the applicable  vesting period,
and then only if the market price of the underlying shares  appreciates over the
option term.

The number of shares  subject to each option grant is set at a level intended to
create a  meaningful  opportunity  for stock  ownership  based on the  officer's
current  position  with the  Company,  the  size of  comparable  awards  made to
individuals in similar positions within the industry, the individual's potential
for  increased  responsibility  and  promotion  over the  option  term,  and the
individual's personal performance in recent periods. The Compensation  Committee
also takes into  account the number of unvested  options  held by the  executive
officer in order to maintain an appropriate  level of equity  incentive for that
individual.  However, the Compensation Committee does not adhere to any specific
guidelines  as to  the  relative  option  holdings  of the  Company's  executive
officers.

CEO COMPENSATION. In setting Dr. Harari's base salary as Chief Executive Officer
for the 1998  fiscal  year,  the  Compensation  Committee  sought to achieve two
objectives:  (i) establish a level of base salary  competitive with that paid to
other  chief  executive  officers  of the peer group  companies  and (ii) make a
significant percentage of the total compensation package contingent upon Company
performance.  The base  salary  established  for Dr.  Harari on the basis of the
foregoing  criteria was  intended to provide him with a level of  stability  and
certainty each year. Accordingly,  this element of Dr. Harari's compensation was
not affected to any significant degree by Company performance factors and was at
the 50th  percentile  of the base  salary  levels  in  effect  for  other  chief
executive  officers at the same peer group of companies surveyed for comparative
compensation  purposes.  The remaining  components of the compensation earned by
Dr.  Harari for the 1998  fiscal year were  entirely  dependent  upon  financial
performance  and  provided no dollar  guarantees.  No cash bonus was paid to Dr.
Harari  for the 1998  fiscal  year,  because  the  Company  failed to attain the
pre-tax profit and net revenue targets established by the Compensation Committee
for that year.

A stock option for an additional  100,000  shares of Common Stock was granted to
Dr.  Harari on December  15, 1998 in order to bring his level of unvested  stock
option  holdings to a level the  Compensation  Committee  deemed  appropriate to
provide him with a meaningful  incentive to remain in the  Company's  employ and
contribute  to the  financial  success of the Company in the form of stock price
appreciation.

COMPLIANCE  WITH INTERNAL  REVENUE CODE SECTION  162(M).  Section  162(m) of the
Internal Revenue Code, enacted in 1993,  generally  disallows a tax deduction to
publicly-held  companies for compensation paid to certain executive officers, to
the extent that  compensation  exceeds $1 million  per officer in any year.  The
compensation paid to the Company's  executive  officers for the 1998 fiscal year
did not exceed the $1 million  limit per  officer,  and it is not  expected  the
compensation to be paid to the Company's  executive officers for the 1999 fiscal
year will exceed that limit.  In addition,  the Company's 1995 Stock Option Plan
is structured so that any  compensation  deemed paid to an executive  officer in
connection  with the exercise of his or her  outstanding  options under the 1995
Plan with an exercise  price per share equal to the fair market  value per share
of the  Common  Stock  on the  grant  date  will  qualify  as  performance-based
compensation which will not be subject to the $1 million limitation.  Because it
is very  unlikely  that the cash  compensation  payable to any of the  Company's
executive officers in the foreseeable future will approach the $1 million limit,
the Compensation Committee has decided at this time not to take any other action
to limit  or  restructure  the  elements  of cash  compensation  payable  to the
Company's  executive officers.  The Compensation  Committee will reconsider this
decision  should the  individual  compensation  of any  executive  officer  ever
approach the $1 million level.

         William V. Campbell, Compensation Committee Member
         Alan F. Shugart, Compensation Committee Member

                                       34
<PAGE>



           COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

The  Compensation  Committee of the  Company's  Board of Directors was formed in
June 1990 and is comprised of Messrs.  William V.  Campbell and Alan F. Shugart.
Neither of these individuals was at any time during fiscal 1998, or at any other
time, an officer or employee of the Company. No executive officer of the Company
serves as a member of the board of  directors or  compensation  committee of any
other entity that has one or more executive  officers serving as a member of the
Company's Board of Directors or Compensation Committee.

                 EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT
                        AND CHANGE-IN-CONTROL AGREEMENTS

None of the Company's  executive  officers have  employment  agreements with the
Company, and their employment may be terminated at any time at the discretion of
the Board of  Directors.  Pursuant to the express  provisions  of the 1995 Stock
Option  Plan,  the  outstanding  options  under  the 1995 Plan held by the Chief
Executive  Officer and the Company's other executive  officers will  immediately
accelerate in full, and all unvested  shares of Common Stock at the time held by
such individuals  under the 1995 Plan will immediately  vest, in the event their
employment  were to be  terminated  (whether  involuntarily  or through a forced
resignation)  within twelve (12) months after any  acquisition of the Company by
merger or asset sale in which those options and shares did not  otherwise  vest.
In  addition,  the  Compensation  Committee  of the Board of  Directors  has the
authority as Plan Administrator of the 1995 Stock Option Plan to provide for the
accelerated  vesting of the outstanding  options under the 1995 Plan held by the
Chief  Executive  Officer and the  Company's  other  executive  officers and the
immediate  vesting of all  unvested  shares of Common  Stock at the time held by
such  individuals  under the 1995 Plan, in the event their employment were to be
terminated (whether  involuntarily or through a forced resignation)  following a
successful  tender  offer for more than  fifty  percent  (50%) of the  Company's
outstanding Common Stock or a change in the majority of the Board as a result of
one or more contested elections for Board membership.


                                       35
<PAGE>


                                PERFORMANCE GRAPH

The following  graph compares the  cumulative  total  stockholder  return on the
Common Stock of the Company with that of the Standard & Poors 500 Stock Index, a
broad    market    index    published    by   S&P,    and   a    selected    S&P
Electronics/Semiconductor  company  stock  index  compiled  by Morgan  Stanley &
Company.  The comparison for each of the periods  assumes that $100 was invested
on November 7, 1995 (the date of the Company's  initial public  offering) in the
Company's  Common Stock,  the stocks included in the S&P 500 Stock Index and the
stocks  included  in the  S&P  Electronics/Semiconductor  company  index.  These
indices,  which  reflect  formulas  for  dividend  reinvestment  and weighing of
individual stocks, do not necessarily  reflect returns that could be achieved by
individual investor

                   COMPARISON OF CUMULATIVE TOTAL RETURN FROM
                     NOVEMBER 7, 1995 TO DECEMBER 24, 1998.


                     AMONG SANDISK, S&P 500 STOCK INDEX AND
                   S&P ELECTRONICS SEMICONDUCTOR COMPANY INDEX

                          SanDisk           S&P Electronics
          Date           Corporation       Semiconductor Index     S&P 500

        07-Nov-95            100.00              100.00            100.00
        26-Feb-96            152.50               86.11            111.73
        12-Jun-96            137.50               96.40            115.77
        27-Sep-96            160.00              115.14            119.51
        15-Jan-97            107.50              163.93            134.38
        02-May-97            125.00              187.48            143.17
        19-Aug-97            213.75              231.60            164.01
        04-Dec-97            236.25              174.25            173.23
        25-Mar-98            250.00              177.83            197.07
        13-Jul-98            131.25              188.30            209.31
        27-Oct-98             90.63              197.12            192.16
        24-Dec-98            131.25              282.97            221.77



Notwithstanding  anything  to the  contrary  set  forth in any of the  Company's
previous filings under the Securities Act of 1933 or the Exchange Act that might
incorporate future filings, including this Proxy Statement, in whole or in part,
the preceding  Compensation  Committee Report on Executive  Compensation and the
preceding Performance Graph shall not be incorporated by reference into any such
filings;  nor shall such Report or graph be  incorporated  by reference into any
future filings.


                                       36
<PAGE>


                              CERTAIN TRANSACTIONS

The  Company  has  a  strategic  relationship  with  Seagate  Technology,   Inc.
("Seagate"),  which owns 23.5% of the Company's  Common Stock as calculated on a
fully diluted basis. In January 1993,  Seagate acquired a 25% ownership interest
in the Company.  Seagate has the right to nominate one director to the Company's
Board of Directors. Thomas F. Mulvaney, Seagate's Senior Vice President, General
Counsel and  Secretary,  serves as Seagate's  nominee to the Company's  Board of
Directors.  The  Shareholder  Rights Plan,  adopted by the Board of Directors on
April 21, 1997,  permits  Seagate to continue to hold its ownership  interest in
the Company without triggering the provisions of the plan.

The Company intends that all future  transactions,  including loans, between the
Company and its officers, directors, principal stockholders and their affiliates
be approved by a majority of the Board of Directors, including a majority of the
independent and disinterested  outside directors on the Board of Directors,  and
be on terms no less  favorable  to the  Company  than  could  be  obtained  from
unaffiliated  third  parties.   In  addition,   the  Company  has  entered  into
indemnification agreements with each of its directors and executive officers.

                                       37
<PAGE>


                                 OTHER BUSINESS

The Board of Directors  knows of no other  business  that will be presented  for
consideration  at the Annual  Meeting.  If other  matters are  properly  brought
before the Annual Meeting,  however, it is the intention of the persons named in
the accompanying proxy to vote the shares represented thereby on such matters in
accordance with their best judgment.

                              STOCKHOLDER PROPOSALS

Proposals of  stockholders  that are  intended to be presented at the  Company's
Annual Meeting of  stockholders  to be held in 2000 must be received by December
13, 1999 in order to be included in the proxy  statement  and proxy  relating to
that meeting.

In  addition,  the proxy  solicited  by the Board of  Directors  for the  Annual
Meeting to be held in 2000 will confer  discretionary  authority  to vote on any
stockholder  proposal presented at that meeting,  unless the Company is provided
with notice of such proposal no later than February 24, 2000.

                                BY ORDER OF THE BOARD OF DIRECTORS






                                 CINDY BURGDORF
                                 Chief Financial Officer,   
                                 Senior Vice President,  
                                 Finance and Administration and Secretary

                                 March 30, 1999






                                       38









                               SANDISK CORPORATION
                             1995 STOCK OPTION PLAN

                  AMENDED AND RESTATED AS OF DECEMBER 17, 1998

                                  ARTICLE One
                               GENERAL PROVISIONS


I.       PURPOSE OF THE PLAN

         This 1995 Stock  Option Plan is intended  to promote the  interests  of
SanDisk Corporation, a Delaware corporation,  by providing eligible persons with
the opportunity to acquire a proprietary  interest,  or otherwise increase their
proprietary  interest,  in the Corporation as an incentive for them to remain in
the service of the Corporation.

         Capitalized terms shall have the meanings assigned to such terms in the
attached Appendix.

II.      ADMINISTRATION OF THE PLAN

         A. The Committee shall have sole and exclusive  authority to administer
the Plan with  respect to Section 16 Insiders.  Administration  of the Plan with
respect  to all other  persons  eligible  to  participate  may,  at the  Board's
discretion,  be vested in the  Committee,  or the Board may  retain the power to
administer the Plan with respect to all such persons.

         B. Members of the Committee  shall serve for such period of time as the
Board may determine and shall be subject to removal by the Board at any time.

         C. The Plan Administrator shall, within the scope of its administrative
functions  under  the Plan,  have  full  power  and  authority  (subject  to the
provisions of the Plan) to establish  such rules and  regulations as it may deem
appropriate   for   proper   administration   of  the  Plan  and  to  make  such
determinations  under, and issue such interpretations of, the provisions of such
program and any  outstanding  options  thereunder  as it may deem  necessary  or
advisable.  Decisions  of  the  Plan  Administrator  within  the  scope  of  its
administrative  functions  under  the Plan  shall be final  and  binding  on all
parties who have an interest in the Plan or any option thereunder.

         D. Service on the Committee shall constitute service as a Board member,
and  members  of  the   Committee   shall   accordingly   be  entitled  to  full
indemnification  and reimbursement as Board members for their service. No member
of the Committee shall be liable for any act or omission made in good faith with
respect to the Plan or any option grants made under the Plan.

III.     ELIGIBILITY

         A. The persons eligible to participate in the Plan are as follows:


<PAGE>


         (i)      Employees,

         (ii)     Non-employee Board members, and

         (iii)    consultants  and  other   independent   advisors  who  provide
                  services to the Corporation (or any Parent or Subsidiary).

         B. The Plan Administrator shall, within the scope of its administrative
jurisdiction  under the Plan,  have full  authority to determine  which eligible
persons are to receive option grants,  the time or times when such option grants
are to be made,  the  number of shares to be  covered  by each such  grant,  the
status of the granted  option as either an Incentive  Option or a  Non-Statutory
Option,  the time or times at which each option is to become exercisable and the
vesting  schedule (if any)  applicable to the option shares and the maximum term
for which the option is to remain outstanding.

IV.      STOCK SUBJECT TO THE PLAN

         A. The stock  issuable under the Plan shall be shares of authorized but
unissued  or  reacquired  Common  Stock,  including  shares  repurchased  by the
Corporation  on the open  market.  The maximum  number of shares of Common Stock
which may be issued over the term of the Plan shall not exceed 9,498,711 shares.
Such share reserve  includes (i) the initial  reserve of 3,498,711  shares which
reflects  the 2:3 stock split  adopted by the Board on July 25,  1995,  (ii) the
additional  increase of 2,500,000 shares authorized by the Board on February 10,
1997, and approved by the  stockholders  at the 1997 Annual Meeting and (iii) an
additional  increase of 3,500,000 shares authorized by the Board on December 17,
1998,  subject to stockholder  approval at the 1999 Annual Meeting.  The initial
authorized  share reserve was  comprised of the number of shares which  remained
available for issuance,  as of the Effective Date, under the Predecessor Plan as
last approved by the Corporation's  stockholders  prior to such date,  including
the shares subject to the outstanding options incorporated into the Plan and any
other shares which would have been  available for future option grants under the
Predecessor Plan.

         B. The number of shares of Common Stock  available  for issuance  under
the Plan shall  automatically  increase on the first trading day of January each
calendar year during the term of the Plan, beginning with calendar year 2002, by
an amount equal to four and thirty-six hundreds percent (4.36%) of the shares of
Common Stock  outstanding on the last trading day in December of the immediately
preceding  calendar year, but in no event shall any such annual  increase exceed
2,000,000 shares.

         C. No one person  participating  in the Plan may  receive  options  and
separately  exercisable stock appreciation rights for more than 1,000,000 shares
of Common Stock in the aggregate over the term of the Plan.


                                       2
<PAGE>


         D.  Shares of Common  Stock  subject to  outstanding  options  shall be
available for  subsequent  issuance under the Plan to the extent (i) the options
(including  any  options  incorporated  from the  Predecessor  Plan)  expire  or
terminate  for any reason  prior to  exercise  in full or (ii) the  options  are
cancelled in accordance with the cancellation-regrant provisions of Article Two.
In addition,  unvested shares issued under the Plan and subsequently repurchased
by the Corporation,  at the original exercise price paid per share,  pursuant to
the  Corporation's  repurchase  rights under the Plan shall be added back to the
number of shares of Common Stock  reserved for issuance under the Plan and shall
accordingly be available for reissuance  through one or more  subsequent  option
grants under the Plan. However, should the exercise price of an option under the
Plan (including any option  incorporated from the Predecessor Plan) be paid with
shares of Common Stock or should shares of Common Stock otherwise issuable under
the Plan be withheld by the Corporation in satisfaction of the withholding taxes
incurred in connection  with the exercise of an option under the Plan,  then the
number of shares of Common Stock  available for issuance under the Plan shall be
reduced by the gross number of shares for which the option is exercised, and not
by the net number of shares of Common Stock issued to the holder of such option.

         E. Should any change be made to the Common Stock by reason of any stock
split,  stock  dividend,  recapitalization,  combination of shares,  exchange of
shares or other change affecting the outstanding Common Stock as a class without
the  Corporation's  receipt of consideration,  appropriate  adjustments shall be
made to (i) the maximum  number  and/or class of securities  issuable  under the
Plan,  (ii) the maximum  number  and/or class of  securities  by which the share
reserve  is to  increase  automatically  each  calendar  year  pursuant  to  the
provisions of Section IV.B of this Article One, (iii) the number and/or class of
securities  for which any one  person  may be  granted  options  and  separately
exercisable  stock  appreciation  rights  over the term of the Plan and (iv) the
number  and/or class of  securities  and the exercise  price per share in effect
under  each  outstanding  option  (including  any option  incorporated  from the
Predecessor  Plan) in order to prevent the dilution or  enlargement  of benefits
thereunder. The adjustments determined by the Plan Administrator shall be final,
binding and conclusive.

                                       3
<PAGE>


                                  ARTICLE TWO
                              OPTION GRANT PROGRAM


I.       OPTION TERMS

         Each option  shall be  evidenced  by one or more  documents in the form
approved by the Plan Administrator;  provided,  however, that each such document
shall  comply  with the terms  specified  below.  Each  document  evidencing  an
Incentive  Option shall,  in addition,  be subject to the provisions of the Plan
applicable to such options.

         A. Exercise Price.

                  1. The  exercise  price per  share  shall be fixed by the Plan
Administrator  but shall not be less than eighty-five  percent (85%) of the Fair
Market Value per share of Common Stock on the option grant date.


                  2.  The  exercise  price  shall  become  immediately  due upon
exercise  of the  option and shall,  subject to the  provisions  of Section I of
Article Three and the documents evidencing the option, be payable in one or more
of the forms specified below:

                  (i)      cash or check made payable to the Corporation,

                  (ii)     shares of Common Stock held for the requisite  period
                           necessary  to  avoid a  charge  to the  Corporation's
                           earnings for financial  reporting purposes and valued
                           at Fair Market Value on the Exercise Date, or

                  (iii)    to the  extent  the  option is  exercised  for vested
                           shares,   through  a  special  sale  and   remittance
                           procedure   pursuant  to  which  the  Optionee  shall
                           concurrently provide irrevocable written instructions
                           to (a) a  Corporation-designated  brokerage  firm  to
                           effect the immediate sale of the purchased shares and
                           remit to the  Corporation,  out of the sale  proceeds
                           available on the settlement date, sufficient funds to
                           cover the  aggregate  exercise  price payable for the
                           purchased shares plus all applicable  Federal,  state
                           and local income and employment  taxes required to be
                           withheld  by  the   Corporation  by  reason  of  such
                           exercise  and  (b) the  Corporation  to  deliver  the
                           certificates  for the  purchased  shares  directly to
                           such brokerage firm in order to complete the sale.

         Except to the extent such sale and  remittance  procedure  is utilized,
payment  of the  exercise  price for the  purchased  shares  must be made on the
Exercise Date.

         B. Exercise and Term of Options.  Each option shall be  exercisable  at
such time or times, during such period and for such number of shares as shall be
determined by the Plan  Administrator and set forth in the documents  evidencing
the  option.  However,  no option  shall have a term in excess of ten (10) years
measured from the option grant date.


                                       4
<PAGE>


         C. Effect of Termination of Service.

                  1. The following  provisions  shall govern the exercise of any
options held by the Optionee at the time of cessation of Service or death:

                  (i)      Any option  outstanding at the time of the Optionee's
                           cessation  of  Service  for any reason  shall  remain
                           exercisable  for such  period of time  thereafter  as
                           shall be determined by the Plan Administrator and set
                           forth in the documents  evidencing the option, but no
                           such option shall be exercisable after the expiration
                           of the option term.

                  (ii)     Any  option  exercisable  in  whole or in part by the
                           Optionee  at the  time of death  may be  subsequently
                           exercised  by  the  personal  representative  of  the
                           Optionee's estate or by the person or persons to whom
                           the option is transferred  pursuant to the Optionee's
                           will or in  accordance  with the laws of descent  and
                           distribution.

                  (iii)    During the applicable  post-Service  exercise period,
                           the option may not be exercised in the  aggregate for
                           more than the  number of vested  shares for which the
                           option is  exercisable  on the date of the Optionee's
                           cessation  of  Service.  Upon the  expiration  of the
                           applicable  exercise  period or (if earlier) upon the
                           expiration  of the  option  term,  the  option  shall
                           terminate and cease to be outstanding  for any vested
                           shares for which the  option has not been  exercised.
                           However,  the  option  shall,  immediately  upon  the
                           Optionee's cessation of Service,  terminate and cease
                           to be outstanding to the extent it is not exercisable
                           for vested  shares on the date of such  cessation  of
                           Service.

                  (iv)     Should  the  Optionee's  Service  be  terminated  for
                           Misconduct,  then all outstanding options held by the
                           Optionee shall terminate  immediately and cease to be
                           outstanding.

                  2.  The  Plan   Administrator   shall  have  the   discretion,
exercisable  either at the time an option is  granted  or at any time  while the
option remains outstanding, to:

                  (i)      extend  the period of time for which the option is to
                           remain exercisable following the Optionee's cessation
                           of Service  from the period  otherwise  in effect for
                           that  option  to such  greater  period of time as the
                           Plan Administrator shall deem appropriate,  but in no
                           event  beyond  the  expiration  of the  option  term,
                           and/or

                  (ii)     permit  the  option  to  be  exercised,   during  the
                           applicable  post-Service  exercise  period,  not only
                           with respect to the number of vested shares of Common
                           Stock for which  such  option is  exercisable  at the
                           time of the Optionee's  cessation of Service but also
                           with respect to one or more  additional  installments
                           in which the  Optionee  would have  vested  under the
                           option had the Optionee continued in Service.

         D.  Stockholder   Rights.  The  holder  of  an  option  shall  have  no
stockholder  rights with respect to the shares  subject to the option until such
person shall have  exercised  the option,  paid the exercise  price and become a
holder of record of the purchased shares.


                                       5
<PAGE>


         E. Repurchase Rights. The Plan Administrator  shall have the discretion
to grant  options  which are  exercisable  for unvested  shares of Common Stock.
Should the Optionee  cease  Service  while  holding such  unvested  shares,  the
Corporation  shall have the right to repurchase,  at the exercise price paid per
share, any or all of those unvested shares. The terms upon which such repurchase
right shall be exercisable  (including the period and procedure for exercise and
the appropriate  vesting schedule for the purchased shares) shall be established
by the  Plan  Administrator  and  set  forth  in the  document  evidencing  such
repurchase right.

         F.  Limited  Transferability  of  Options.  During the  lifetime of the
Optionee,  Incentive Options shall be exercisable only by the Optionee and shall
not be assignable or  transferable  other than by will or by the laws of descent
and distribution following the Optionee's death. However, a Non-Statutory Option
may, in connection  with the Optionee's  estate plan, be assigned in whole or in
part during the  Optionee's  lifetime to one or more  members of the  Optionee's
immediate  family  or to a trust  established  exclusively  for one or more such
family  members.  The  assigned  portion may only be  exercised by the person or
persons  who  acquire a  proprietary  interest  in the  option  pursuant  to the
assignment.  The terms  applicable to the assigned  portion shall be the same as
those in effect for the option immediately prior to such assignment and shall be
set forth in such documents issued to the assignee as the Plan Administrator may
deem appropriate.

II.      INCENTIVE OPTIONS

         The terms specified below shall be applicable to all Incentive Options.
Except as modified by the  provisions of this Section II, all the  provisions of
the  Plan  shall  be  applicable  to  Incentive   Options.   Options  which  are
specifically  designated  as  Non-Statutory  Options  when issued under the Plan
shall not be subject to the terms of this Section II.

         A. Eligibility. Incentive Options may only be granted to Employees.

         B. Exercise Price.  The exercise price per share shall not be less than
one hundred percent (100%) of the Fair Market Value per share of Common Stock on
the option grant date.

         C. Dollar Limitation.  The aggregate Fair Market Value of the shares of
Common Stock  (determined as of the respective date or dates of grant) for which
one or more options  granted to any Employee under the Plan (or any other option
plan of the  Corporation  or any  Parent or  Subsidiary)  may for the first time
become  exercisable as Incentive  Options during any one (1) calendar year shall
not exceed the sum of One Hundred Thousand Dollars ($100,000). To the extent the
Employee  holds two (2) or more such options  which become  exercisable  for the
first  time  in  the  same  calendar  year,  the  foregoing  limitation  on  the
exercisability  of such  options as  Incentive  Options  shall be applied on the
basis of the order in which such options are granted.

         D. 10%  Stockholder.  If any  Employee to whom an  Incentive  Option is
granted is a 10%  Stockholder,  then the  exercise  price per share shall not be
less than one hundred ten percent  (110%) of the Fair Market  Value per share of
Common Stock on the option grant date, and the option term shall not exceed five
(5) years measured from the option grant date.


                                       6
<PAGE>


III.     CORPORATE TRANSACTION/CHANGE IN CONTROL

         A. In the event of any Corporate  Transaction,  each outstanding option
shall automatically accelerate so that each such option shall, immediately prior
to the effective date of the Corporate Transaction, become fully exercisable for
all of the shares of Common  Stock at the time subject to such option and may be
exercised for any or all of those shares as fully-vested shares of Common Stock.
However, an outstanding option shall not so accelerate if and to the extent: (i)
such  option is, in  connection  with the  Corporate  Transaction,  either to be
assumed by the successor  corporation (or parent thereof) or to be replaced with
a comparable  option to purchase  shares of the capital  stock of the  successor
corporation (or parent thereof),  (ii) such option is to be replaced with a cash
incentive  program  of the  successor  corporation  which  preserves  the spread
existing on the unvested option shares at the time of the Corporate  Transaction
and provides for subsequent  payout in accordance with the same vesting schedule
applicable to such option or (iii) the acceleration of such option is subject to
other  limitations  imposed by the Plan  Administrator at the time of the option
grant. The determination of option comparability under clause (i) above shall be
made by the Plan Administrator,  and its determination  shall be final,  binding
and conclusive.

         B.   All   outstanding   repurchase   rights   shall   also   terminate
automatically, and the shares of Common Stock subject to those terminated rights
shall  immediately  vest in full,  in the  event of any  Corporate  Transaction,
except to the  extent:  (i) those  repurchase  rights are to be  assigned to the
successor  corporation  (or parent  thereof) in connection  with such  Corporate
Transaction or (ii) such accelerated  vesting is precluded by other  limitations
imposed by the Plan Administrator at the time the repurchase right is issued.

         C. The Plan Administrator shall have the discretion, exercisable either
at the time the  option  is  granted  or at any time  while the  option  remains
outstanding,   to  provide  for  the  automatic  acceleration  of  one  or  more
outstanding  options (and the automatic  termination of one or more  outstanding
repurchase  rights  with the  immediate  vesting of the  shares of Common  Stock
subject to those rights) upon the occurrence of a Corporate Transaction, whether
or not those options are to be assumed or replaced (or those  repurchase  rights
are to be assigned) in the
Corporate Transaction.

         D. Immediately following the consummation of the Corporate Transaction,
all outstanding  options shall terminate and cease to be outstanding,  except to
the extent assumed by the successor corporation (or parent thereof).

         E.  Each  option  which  is  assumed  in  connection  with a  Corporate
Transaction  shall be appropriately  adjusted,  immediately after such Corporate
Transaction,  to apply to the number and class of  securities  which  would have
been issuable to the Optionee in consummation of such Corporate  Transaction had
the option  been  exercised  immediately  prior to such  Corporate  Transaction.
Appropriate  adjustments  shall  also be made to (i) the  number  and  class  of
securities  available  for issuance  under the Plan on both an aggregate and per
Optionee basis following the consummation of such Corporate Transaction and (ii)
the exercise price payable per share under each outstanding option, provided the
aggregate exercise price payable for such securities shall remain the same.


                                       7
<PAGE>


         F.  Any  options  which  are  assumed  or  replaced  in  the  Corporate
Transaction and do not otherwise  accelerate at that time,  shall  automatically
accelerate (and any of the Corporation's  outstanding repurchase rights which do
not  otherwise  terminate  at  the  time  of  the  Corporate  Transaction  shall
automatically  terminate  and the  shares  of  Common  Stock  subject  to  those
terminated  rights shall  immediately  vest in full) in the event the Optionee's
Service should  subsequently  terminate by reason of an Involuntary  Termination
within  twelve  (12)  months  following  the  effective  date of such  Corporate
Transaction.   Any  options  so  accelerated   shall  remain   exercisable   for
fully-vested  shares until the earlier of (i) the  expiration of the option term
or (ii) the  expiration of the one (1)-year  period  measured from the effective
date of the Involuntary Termination.

         G. The Plan Administrator shall have the discretion, exercisable either
at the time the  option  is  granted  or at any time  while the  option  remains
outstanding,  to (i)  provide  for  the  automatic  acceleration  of one or more
outstanding  options (and the automatic  termination of one or more  outstanding
repurchase  rights  with the  immediate  vesting of the  shares of Common  Stock
subject  to those  rights)  upon the  occurrence  of a Change in Control or (ii)
condition any such option  acceleration  (and the termination of any outstanding
repurchase rights) upon the subsequent Involuntary Termination of the Optionee's
Service within a specified period following the effective date of such Change in
Control.  Any options  accelerated in connection  with a Change in Control shall
remain fully  exercisable  until the  expiration  or sooner  termination  of the
option term.

         H. The portion of any Incentive Option accelerated in connection with a
Corporate  Transaction  or Change in  Control  shall  remain  exercisable  as an
Incentive  Option only to the extent the applicable One Hundred  Thousand Dollar
limitation  is not exceeded.  To the extent such dollar  limitation is exceeded,
the  accelerated  portion of such option shall be exercisable as a Non-Statutory
Option under the Federal tax laws.

         I. The grant of options  under the Option Grant Program shall in no way
affect  the  right of the  Corporation  to  adjust,  reclassify,  reorganize  or
otherwise  change its capital or business  structure  or to merge,  consolidate,
dissolve,  liquidate  or sell or  transfer  all or any part of its  business  or
assets.

IV.      CANCELLATION AND REGRANT OF OPTIONS

         The Plan Administrator  shall have the authority to effect, at any time
and from time to time,  with the consent of the  affected  option  holders,  the
cancellation  of any or all  outstanding  options under the Option Grant Program
(including  outstanding  options  incorporated from the Predecessor Plan) and to
grant in  substitution  new options  covering  the same or  different  number of
shares of Common  Stock but with an  exercise  price per share based on the Fair
Market Value per share of Common Stock on the new option grant date.



<PAGE>


V.       STOCK APPRECIATION RIGHTS

         A. The Plan Administrator  shall have full power and authority to grant
to selected  Optionees  tandem stock  appreciation  rights and/or  limited stock
appreciation rights.

         B. The  following  terms shall  govern the grant and exercise of tandem
stock appreciation rights:

         (i)      One or more  Optionees  may be granted the right,  exercisable
                  upon such terms as the Plan  Administrator  may establish,  to
                  elect between the exercise of the underlying option for shares
                  of Common  Stock and the  surrender of that option in exchange
                  for a distribution  from the Corporation in an amount equal to
                  the  excess  of (A) the  Fair  Market  Value  (on  the  option
                  surrender  date) of the number of shares in which the Optionee
                  is at  the  time  vested  under  the  surrendered  option  (or
                  surrendered  portion thereof) over (B) the aggregate  exercise
                  price payable for such shares.

         (ii)     No such  option  surrender  shall be  effective  unless  it is
                  approved by the Plan  Administrator.  If the  surrender  is so
                  approved, then the distribution to which the Optionee shall be
                  entitled  may be made in shares of Common Stock valued at Fair
                  Market Value on the option  surrender date, in cash, or partly
                  in shares and partly in cash, as the Plan Administrator  shall
                  in its sole discretion deem appropriate.

         (iii)    If  the  surrender  of an  option  is  rejected  by  the  Plan
                  Administrator,  then the Optionee shall retain whatever rights
                  the Optionee had under the surrendered  option (or surrendered
                  portion thereof) on the option surrender date and may exercise
                  such  rights  at any time  prior to the  later of (A) five (5)
                  business days after the receipt of the rejection notice or (B)
                  the last day on which the option is otherwise  exercisable  in
                  accordance  with the terms of the  documents  evidencing  such
                  option, but in no event may such rights be exercised more than
                  ten (10) years after the option grant date.

         C. The  following  terms shall govern the grant and exercise of limited
stock appreciation rights:

         (i)      One or more Section 16 Insiders may be granted  limited  stock
                  appreciation rights with respect to their outstanding options.

         (ii)     Upon  the  occurrence  of  a  Hostile  Take-Over,   each  such
                  individual  holding  one or more  options  with such a limited
                  stock  appreciation  right shall have the unconditional  right
                  (exercisable  for a  thirty  (30)-day  period  following  such
                  Hostile  Take-Over)  to  surrender  each  such  option  to the
                  Corporation,   to  the  extent  the  option  is  at  the  time
                  exercisable  for vested shares of Common Stock.  In return for
                  the  surrendered  option,  the Optionee  shall  receive a cash
                  distribution  from the  Corporation  in an amount equal to the
                  excess  of (A) the  Take-Over  Price of the  shares  of Common
                  Stock  which are at the time  vested  under  each  surrendered
                  option (or surrendered portion thereof) over (B) the aggregate
                  exercise price payable for such shares. Such cash distribution
                  shall  be paid  within  five  (5) days  following  the  option
                  surrender date.


                                       9
<PAGE>


         (iii)    The  Plan  Administrator  shall  pre-approve,  at the time the
                  limited  right is  granted,  the  subsequent  exercise of that
                  right in  accordance  with  the  terms  of the  grant  and the
                  provisions of this Section V.C. No additional  approval of the
                  Plan  Administrator or the Board shall be required at the time
                  of the actual option surrender and cash distribution.

         (iv)     The  balance of the option  (if any)  shall  continue  in full
                  force and effect in accordance  with the documents  evidencing
                  such option.


                                       10
<PAGE>


                                  ARTICLE Three
                                  MISCELLANEOUS


I.       FINANCING

         A. The Plan  Administrator  may permit any  Optionee  to pay the option
exercise  price  by  delivering  a  promissory  note  payable  in  one  or  more
installments. The terms of any such promissory note (including the interest rate
and the terms of repayment)  shall be established by the Plan  Administrator  in
its sole discretion. Promissory notes may be authorized with or without security
or collateral.  In all events,  the maximum credit available to the Optionee may
not exceed the sum of (i) the aggregate  option  exercise  price payable for the
purchased  shares plus (ii) any Federal,  state and local income and  employment
tax liability incurred by the Optionee in connection with the option exercise.

         B. The Plan Administrator may, in its discretion, determine that one or
more such promissory notes shall be subject to forgiveness by the Corporation in
whole or in part upon such terms as the Plan Administrator may deem appropriate.

II.      TAX WITHHOLDING

         A. The Corporation's  obligation to deliver shares of Common Stock upon
the  exercise of options or stock  appreciation  rights  under the Plan shall be
subject to the  satisfaction of all applicable  Federal,  state and local income
and employment tax withholding requirements.

         B. The Plan  Administrator  may, in its discretion,  provide any or all
holders of Non-Statutory Options with the right to use shares of Common Stock in
satisfaction of all or part of the  Withholding  Taxes to which such holders may
be subject in connection  with the exercise of their options.  Such right may be
provided to any such holder in either or both of the following formats:

         (i)      Stock  Withholding:  The  election  to  have  the  Corporation
                  withhold,  from the shares of Common Stock otherwise  issuable
                  upon the exercise of such  Non-Statutory  Option, a portion of
                  those shares with an aggregate  Fair Market Value equal to the
                  percentage of the Withholding Taxes (not to exceed one hundred
                  percent (100%)) designated by the holder.

         (ii)     Stock Delivery: The election to deliver to the Corporation, at
                  the time the  Non-Statutory  Option is exercised,  one or more
                  shares of Common  Stock  previously  acquired  by such  holder
                  (other than in connection with the option exercise  triggering
                  the  Withholding  Taxes) with an  aggregate  Fair Market Value
                  equal  to the  percentage  of the  Withholding  Taxes  (not to
                  exceed one hundred percent (100%)) designated by the holder.


                                       11
<PAGE>


III.     EFFECTIVE DATE AND TERM OF THE PLAN

         A. The Plan became  effective  on the November 7, 1995  Effective  Date
after adoption by the Board on July 25, 1995, and approval by the  Corporation's
stockholders in August 1995.

         B. The Plan was  amended  on  February  10,  1997 (the  "February  1997
Amendment") to effect the following  changes:  (i) increase the number of shares
of  Common  Stock  authorized  for  issuance  over  the  term of the  Plan by an
additional 2,500,000 shares, (ii) render the non-employee Board members eligible
to receive  option  grants under the Plan,  (iii) allow  unvested  shares issued
under the Plan and  subsequently  repurchased  by the  Corporation at the option
exercise  price paid per share to be  reissued  under the Plan and (iv) effect a
series  of  technical  changes  to the  provisions  of the Plan  (including  the
stockholder  approval  requirements)  in order to take  advantage  of the recent
amendments  to Rule 16b-3 of the  Securities  Exchange Act of 1934 which exempts
certain  officer and director  transactions  under the Plan from the short-swing
liability provisions of the Federal securities laws. The February 1997 Amendment
was  approved at the 1997 Annual  Meeting.  All option  grants made prior to the
February 1997 Amendment  shall remain  outstanding in accordance  with the terms
and  conditions  of the  respective  instruments  evidencing  those  options  or
issuances,  and nothing in the February 1997 Amendment shall be deemed to modify
or in any way  affect  those  outstanding  options  or  issuances.  The Plan was
amended on  December  17, 1998 (the  "December  1998  Amendment")  to effect the
following changes:  (i) increase the number of shares of Common Stock authorized
for issuance  over the term of the Plan by an  additional  3,500,000  shares and
(ii)  implement  the  automatic  share  increase  provisions  of Section IV.B of
Article One. The December 1998 Amendment is subject to  stockholder  approval at
the  1999  Annual  Meeting  and  no  option  grants  made  on the  basis  of the
3,500,000-share  increase  authorized by that amendment shall become exercisable
in whole or in part unless and until the December 1998  Amendment is approved by
the stockholders.  Should such stockholder  approval not be obtained at the 1999
Annual  Meeting,  then each option  grant made  pursuant to the  3,500,000-share
increase  authorized by the December 1998 Amendment shall terminate and cease to
remain  outstanding,  and no further option grants shall be made on the basis of
that share increase, and the automatic share increase provisions of Section IV.B
of Article One shall not be implemented.  Subject to the foregoing  limitations,
options may be granted  under the Plan at any time before the date fixed  herein
for the termination of the Plan.

         C. The Plan shall serve as the successor to the  Predecessor  Plan, and
no further  option  grants  shall be made under the  Predecessor  Plan after the
Effective Date. All options  outstanding  under the Predecessor  Plan as of such
date  shall,  immediately  upon  approval  of  the  Plan  by  the  Corporation's
stockholders,  be incorporated into the Plan and treated as outstanding  options
under the Plan. However,  each outstanding option so incorporated shall continue
to be governed solely by the terms of the documents  evidencing such option, and
no  provision  of the Plan  shall be deemed to affect or  otherwise  modify  the
rights or obligations of the holders of such  incorporated  options with respect
to their acquisition of shares of Common Stock.

                                       12
<PAGE>


         D. The  provisions  of the Plan  (including,  without  limitation,  the
option/vesting  acceleration  provisions  of Article Two  relating to  Corporate
Transactions   and  Changes  in  Control)  may,  in  the  Plan   Administrator's
discretion, be extended to one or more options incorporated from the Predecessor
Plan which do not otherwise provide for such acceleration.

         E. The Plan shall  terminate  upon the  earliest of (i) July 24,  2005,
(ii) the date on which all shares  available  for  issuance  under the Plan have
been issued  pursuant to the exercise of the options under the Plan or (iii) the
termination  of  all   outstanding   options  in  connection  with  a  Corporate
Transaction.  Upon such Plan termination,  all options  outstanding on such date
shall  thereafter  continue  to have  force and  effect in  accordance  with the
provisions of the documents evidencing such options.

IV.      AMENDMENT OF THE PLAN

         A. The Board shall have complete and  exclusive  power and authority to
amend or modify the Plan in any or all respects.  However,  no such amendment or
modification  shall adversely  affect the rights and obligations with respect to
options  or stock  appreciation  rights at the time  outstanding  under the Plan
unless the Optionee  consents to such  amendment or  modification.  In addition,
certain  amendments  may  require   stockholder   approval  in  accordance  with
applicable laws and regulations.

         B.  Options to purchase  shares of Common Stock may be granted that are
in excess of the number of shares then  available  for issuance  under the Plan,
provided any excess shares actually issued are held in escrow until  stockholder
approval of an amendment sufficiently  increasing the number of shares of Common
Stock  available for issuance  under the Plan is obtained.  If such  stockholder
approval is not obtained within twelve (12) months after the date the first such
excess issuances are made, then (i) any unexercised options granted on the basis
of such excess shares shall  terminate and cease to be outstanding  and (ii) the
Corporation  shall promptly  refund to the Optionees the exercise price paid for
any  excess  shares  issued  under the Plan and held in  escrow,  together  with
interest (at the  applicable  Short Term Federal Rate) for the period the shares
were held in escrow, and such shares shall thereupon be automatically  cancelled
and cease to be outstanding.

V.       USE OF PROCEEDS

         Any cash proceeds  received by the Corporation  from the sale of shares
of Common Stock under the Plan shall be used for general corporate purposes.

VI.      REGULATORY APPROVALS

         A. The  implementation of the Plan, the granting of any option or stock
appreciation right under the Plan and the issuance of any shares of Common Stock
upon the exercise of any option or stock  appreciation right shall be subject to
the  Corporation's   procurement  of  all  approvals  and  permits  required  by
regulatory  authorities having jurisdiction over the Plan, the options and stock
appreciation  rights  granted  under it and the  shares of Common  Stock  issued
pursuant to it.

                                       13
<PAGE>


         B. No  shares  of  Common  Stock or other  assets  shall be  issued  or
delivered  under the Plan unless and until there shall have been compliance with
all applicable  requirements of Federal and state securities laws, including the
filing and  effectiveness of the Form S-8 registration  statement for the shares
of Common Stock issuable under the Plan, and all applicable listing requirements
of any stock exchange (or the Nasdaq  National  Market,  if applicable) on which
Common Stock is then listed for trading.

VII.     NO EMPLOYMENT/SERVICE RIGHTS

         Nothing  in the Plan  shall  confer  upon  the  Optionee  any  right to
continue  in Service for any period of specific  duration or  interfere  with or
otherwise  restrict in any way the rights of the  Corporation  (or any Parent or
Subsidiary employing or retaining such person) or of the Optionee,  which rights
are hereby expressly reserved by each, to terminate such person's Service at any
time for any reason, with or without cause.

                                       14
<PAGE>



                                    APPENDIX

         The following definitions shall be in effect under the Plan:

         A. Board shall mean the Corporation's Board of Directors.

         B. Change in Control shall mean a change in ownership or control of the
Corporation effected through either of the following transactions:

         (i)      the  acquisition,  directly  or  indirectly,  by any person or
                  related  group of persons  (other  than the  Corporation  or a
                  person that directly or indirectly controls, is controlled by,
                  or  is  under  common  control  with,  the  Corporation),   of
                  beneficial  ownership (within the meaning of Rule 13d-3 of the
                  1934 Act) of  securities  possessing  more than fifty  percent
                  (50%) of the total combined voting power of the  Corporation's
                  outstanding  securities pursuant to a tender or exchange offer
                  made directly to the Corporation's stockholders, or

         (ii)     a change  in the  composition  of the  Board  over a period of
                  thirty-six  (36)  consecutive  months  or  less  such  that  a
                  majority of the Board members ceases, by reason of one or more
                  contested  elections for Board membership,  to be comprised of
                  individuals   who   either   (A)  have  been   Board   members
                  continuously  since the  beginning  of such period or (B) have
                  been elected or nominated for election as Board members during
                  such  period  by at  least a  majority  of the  Board  members
                  described  in clause  (A) who were still in office at the time
                  the Board approved such election or nomination.

         C. Code shall mean the Internal Revenue Code of 1986, as amended.

         D. Committee  shall mean the committee of two (2) or more  non-employee
Board members appointed by the Board to administer the Plan.

         E. Common Stock shall mean the Corporation's common stock.

         F.   Corporate   Transaction   shall  mean  either  of  the   following
stockholder-approved transactions to which the Corporation is a party:

         (i)      a merger or consolidation in which securities  possessing more
                  than fifty percent (50%) of the total combined voting power of
                  the Corporation's  outstanding securities are transferred to a
                  person or persons  different  from the persons  holding  those
                  immediately prior to such transaction; or

         (ii)     the   sale,   transfer   or  other   disposition   of  all  or
                  substantially  all of the  Corporation's  assets  in  complete
                  liquidation or dissolution of the Corporation.

         G. Corporation shall mean SanDisk Corporation, a Delaware corporation.


                                      A-1
<PAGE>


         H.  Effective  Date shall mean November 7, 1995,  the date on which the
Underwriting Agreement was executed and the initial public offering price of the
Common Stock was established.

         I.  Employee  shall  mean an  individual  who is in the  employ  of the
Corporation (or any Parent or Subsidiary),  subject to the control and direction
of the employer  entity as to both the work to be  performed  and the manner and
method of performance.

         J.  Exercise  Date shall mean the date on which the  Corporation  shall
have received written notice of the option exercise.

         K. Fair Market  Value per share of Common  Stock on any  relevant  date
shall be determined in accordance with the following provisions:

         (i)      If the  Common  Stock  is at the  time  traded  on the  Nasdaq
                  National  Market,  then the  Fair  Market  Value  shall be the
                  closing selling price per share of Common Stock on the date in
                  question,   as  such  price  is  reported   by  the   National
                  Association  of  Securities  Dealers  on the  Nasdaq  National
                  Market or any successor system. If there is no closing selling
                  price for the Common Stock on the date in  question,  then the
                  Fair Market  Value shall be the closing  selling  price on the
                  last preceding date for which such quotation exists.

         (ii)     If  the  Common  Stock  is at the  time  listed  on any  Stock
                  Exchange,  then the Fair  Market  Value  shall be the  closing
                  selling  price  per  share  of  Common  Stock  on the  date in
                  question  on  the  Stock  Exchange   determined  by  the  Plan
                  Administrator  to be the primary  market for the Common Stock,
                  as such price is officially  quoted in the  composite  tape of
                  transactions on such exchange.  If there is no closing selling
                  price for the Common Stock on the date in  question,  then the
                  Fair Market  Value shall be the closing  selling  price on the
                  last preceding date for which such quotation exists.

         L.  Hostile   Take-Over  shall  mean  a  change  in  ownership  of  the
Corporation  effected  through the acquisition,  directly or indirectly,  by any
person or related group of persons (other than the  Corporation or a person that
directly or indirectly  controls,  is controlled  by, or is under common control
with, the Corporation) of beneficial ownership (within the meaning of Rule 13d-3
of the 1934 Act) of securities  possessing  more than fifty percent (50%) of the
total combined voting power of the Corporation's outstanding securities pursuant
to a tender or exchange  offer made directly to the  Corporation's  stockholders
which the Board does not recommend such stockholders to accept.

         M.  Incentive   Option  shall  mean  an  option  which   satisfies  the
requirements of Code Section 422.

                                      A-2
<PAGE>


         N. Involuntary Termination shall mean the termination of the Service of
any individual which occurs by reason of:

         (i)      such  individual's  involuntary  dismissal or discharge by the
                  Corporation for reasons other than Misconduct, or

         (ii)     such individual's voluntary resignation following (A) a change
                  in his or her position with the Corporation  which  materially
                  reduces his or her level of responsibility, (B) a reduction in
                  his or her  level  of  compensation  (including  base  salary,
                  fringe  benefits and  participation  in  corporate-performance
                  based  bonus  or  incentive  programs)  by more  than  fifteen
                  percent (15%) or (C) a relocation of such  individual's  place
                  of employment by more than fifty (50) miles, provided and only
                  if such  change,  reduction or  relocation  is effected by the
                  Corporation without the individual's consent.

         O.  Misconduct   shall  mean  the  commission  of  any  act  of  fraud,
embezzlement or dishonesty by the Optionee,  any  unauthorized use or disclosure
by such person of  confidential  information or trade secrets of the Corporation
(or any  Parent or  Subsidiary),  or any other  intentional  misconduct  by such
person  adversely  affecting the business or affairs of the  Corporation (or any
Parent or Subsidiary) in a material manner.  The foregoing  definition shall not
be deemed to be inclusive of all the acts or omissions which the Corporation (or
any Parent or Subsidiary) may consider as grounds for the dismissal or discharge
of any Optionee or other person in the Service of the Corporation (or any Parent
or Subsidiary).

         P. 1934 Act shall mean the Securities Exchange Act of 1934, as amended.

         Q.  Non-Statutory  Option  shall mean an option not intended to satisfy
the requirements of Code Section 422.

         R. Option Grant  Program  shall mean the option grant program in effect
under the Plan.

         S.  Optionee  shall mean any person to whom an option is granted  under
the Plan.

         T. Parent shall mean any corporation (other than the Corporation) in an
unbroken  chain of  corporations  ending  with the  Corporation,  provided  each
corporation in the unbroken chain (other than the Corporation) owns, at the time
of the determination,  stock possessing fifty percent (50%) or more of the total
combined  voting power of all classes of stock in one of the other  corporations
in such chain.

         U.  Permanent   Disability  or  Permanently  Disabled  shall  mean  the
inability  of the  Optionee  to engage in any  substantial  gainful  activity by
reason of any medically  determinable  physical or mental impairment expected to
result in death or to be of continuous duration of twelve (12) months or more.


                                      A-3
<PAGE>


         V. Plan shall mean the  Corporation's  1995 Stock Option  Plan,  as set
forth in this document.

         W. Plan  Administrator  shall mean the particular  entity,  whether the
Committee  or the Board,  which is  authorized  to  administer  the Option Grant
Program with respect to one or more classes of eligible  persons,  to the extent
such entity is carrying out its  administrative  functions  under those programs
with respect to the persons under its jurisdiction.

         X.  Predecessor Plan shall mean the  Corporation's  existing 1989 Stock
Benefit Plan.

         Y.  Section  16  Insider  shall  mean an  officer  or  director  of the
Corporation  subject to the short-swing  profit liabilities of Section 16 of the
1934 Act.

         Z. Section 12(g)  Registration  Date shall mean the first date on which
the Common Stock is registered under Section 12(g) of the 1934 Act.

         AA. Service shall mean the provision of services to the Corporation (or
any  Parent  or  Subsidiary)  by a person  in the  capacity  of an  Employee,  a
non-employee  member of the board of directors or a  consultant  or  independent
advisor,  except to the extent otherwise  specifically provided in the documents
evidencing the option grant.

         BB. Stock Exchange shall mean either the American Stock Exchange or the
New York Stock Exchange.

         CC. Subsidiary shall mean any corporation  (other than the Corporation)
in an unbroken chain of corporations  beginning with the  Corporation,  provided
each corporation  (other than the last  corporation) in the unbroken chain owns,
at the time of the  determination,  stock possessing fifty percent (50%) or more
of the total  combined  voting power of all classes of stock in one of the other
corporations in such chain.

         DD. Take-Over Price shall mean the greater of (i) the Fair Market Value
per  share  of  Common  Stock  on the  date the  option  is  surrendered  to the
Corporation in connection with a Hostile  Take-Over or (ii) the highest reported
price per share of Common  Stock paid by the tender  offeror in  effecting  such
Hostile  Take-Over.  However,  if the surrendered option is an Incentive Option,
the Take-Over Price shall not exceed the clause (i) price per share.

         EE. 10% Stockholder  shall mean the owner of stock (as determined under
Code  Section  424(d))  possessing  more  than ten  percent  (10%) of the  total
combined  voting power of all classes of stock of the Corporation (or any Parent
or Subsidiary).

         FF.  Underwriting  Agreement  shall  mean  the  agreement  between  the
Corporation and the underwriter or underwriters which managed the initial public
offering of the Common Stock.

                                      A-4
<PAGE>


         GG.  Withholding  Taxes shall mean the Federal,  state and local income
and employment withholding taxes to which the holder of Non-Statutory Options or
unvested  shares of Common  Stock may  become  subject  in  connection  with the
exercise of such holder's options or the vesting of his or her shares.

                                      A-5










                               SANDISK CORPORATION

                  1995 NON-EMPLOYEE DIRECTORS STOCK OPTION PLAN

                  AMENDED AND RESTATED AS OF DECEMBER 17, 1998


                                  ARTICLE One
                               GENERAL PROVISIONS

I.       PURPOSE OF THE PLAN

         This 1995  Non-Employee  Directors  Stock  Option  Plan is  intended to
promote  the  interests  of  SanDisk  Corporation,  a Delaware  corporation,  by
providing the non-employee  members of the Board with the opportunity to acquire
a proprietary interest, or otherwise increase their proprietary interest, in the
Corporation  as  an  incentive  for  them  to  remain  in  the  service  of  the
Corporation.

         Capitalized terms shall have the meanings assigned to such
terms in the attached Appendix.

II.      ADMINISTRATION OF THE PLAN

         The terms of each option grant (including the timing and pricing of the
option grant) shall be determined by the express terms of the Plan,  and neither
the Board  nor any  committee  of the Board  shall  exercise  any  discretionary
functions with respect to option grants made pursuant to the Plan.

III.     ELIGIBILITY

         The individuals  eligible to receive option grants under the Plan shall
be (i) those  individuals who are serving as  non-employee  Board members on the
Effective  Date or who are first  elected or  appointed  as  non-employee  Board
members on or after  such  date,  whether  through  appointment  by the Board or
election  by the  Corporation's  stockholders,  and (ii) those  individuals  who
continue  to  serve as  non-employee  Board  members  after  one or more  Annual
Stockholders  Meetings  beginning with the 1996 Annual  Meeting.  A non-employee
Board member who has previously  been in the employ of the  Corporation  (or any
Parent or Subsidiary) shall not be eligible to receive an option grant under the
Plan on the Effective Date or at the time he or she first becomes a non-employee
Board member,  but shall be eligible to receive periodic option grants under the
Plan upon his or her continued service as a non-employee  Board member following
one or more Annual Stockholders Meetings.



<PAGE>


IV.      STOCK SUBJECT TO THE PLAN

         A. The stock  issuable under the Plan shall be shares of authorized but
unissued  or  reacquired  Common  Stock,  including  shares  repurchased  by the
Corporation  on the open  market.  The maximum  number of shares of Common Stock
which may be issued over the term of the Plan shall not exceed 400,000  shares.1
Such share  reserve  includes (i) the initial  share  reserve of 150,000  shares
approved by the  stockholders  in August 1995,  (ii) an additional  50,000 share
increase  authorized  by  the  Board  on  February  10,  1997  and  approved  by
stockholders  at the 1997 Annual  Stockholders  Meeting and (iii) an  additional
200,000 share increase  authorized by the Board on December 17, 1998, subject to
stockholder approval at the 1999 Annual Meeting. No shares of Common Stock shall
become  exercisable  under the Plan on the basis of the 200,000-  share increase
unless that increase is approved by the stockholders at the 1999 Annual Meeting.

         B. The number of shares of Common Stock  available  for issuance  under
the Plan shall  automatically  increase on the first trading day of January each
calendar year during the term of the Plan, beginning with calendar year 2002, by
an amount  equal to two  tenths of one  percent  (0.2%) of the  shares of Common
Stock  outstanding  on the  last  trading  day in  December  of the  immediately
preceding  calendar year, but in no event shall any such annual  increase exceed
75,000 shares.

         C.  Shares of Common  Stock  subject to  outstanding  options  shall be
available  for  subsequent  issuance  under the Plan to the extent  the  options
expire or  terminate  for any reason  prior to  exercise in full.  In  addition,
unvested  shares  issued  under  the Plan and  subsequently  repurchased  by the
Corporation,  at the  original  exercise  price paid per share,  pursuant to the
Corporation's repurchase rights under the Plan shall be added back to the number
of  shares  of  Common  Stock  reserved  for  issuance  under the Plan and shall
accordingly be available for reissuance  through one or more  subsequent  option
grants under the Plan. However,  shares subject to any option or portion thereof
surrendered  in  accordance  with Article Two shall reduce on a  share-for-share
basis the number of shares of Common Stock  available  for  subsequent  issuance
under the Plan.  Should the  exercise  price of an option under the Plan be paid
with shares of Common Stock, then the number of shares of Common Stock available
for  issuance  under the Plan shall be reduced by the gross number of shares for
which the  option is  exercised,  and not by the net  number of shares of Common
Stock issued to the holder of such option.

         D. Should any change be made to the Common Stock by reason of any stock
split,  stock  dividend,  recapitalization,  combination of shares,  exchange of
shares or other change affecting the outstanding Common Stock as a class without
the  Corporation's  receipt of consideration,  appropriate  adjustments shall be
made to (i) the maximum  number  and/or class of securities  issuable  under the
Plan,  (ii) the maximum  number  and/or class of  securities  by which the share
reserve is to increase each calendar year pursuant to the  provisions of Section
IV.B of this Article One,  (iii) the number and/or class of securities for which
option grants are to be

- -------------------------
1 This number reflects the 2:3 stock split adopted by the Board on 
  July 25, 1995.

                                        2
<PAGE>


subsequently  made per  Eligible  Director  and (iv) the number  and/or class of
securities  and the exercise  price per share in effect  under each  outstanding
option in order to prevent the dilution or enlargement  of benefits  thereunder.
The adjustments to the outstanding  options shall be made by the Board and shall
be final, binding and conclusive.


                                       3
<PAGE>



                                  ARTICLE Two
                              OPTION GRANT PROGRAM

I.       OPTION TERMS

         The provisions of this Article Two reflect the changes to the number of
shares of Common  Stock  subject to the initial and annual  option  grants to be
made to the non-employee  Board members pursuant to the amendment  authorized by
the Board on December  17,  1998,  subject to  stockholder  approval at the 1999
Annual  Meeting.   Stockholder  approval  of  such  amendment  shall  constitute
pre-approval  of each option  grant made on or after the date of the 1999 Annual
Meeting to the non-employee  Board members pursuant to the amended provisions of
this Article Two and the subsequent  exercise of that option in accordance  with
such provisions.

A.       Grant Dates. Option grants shall be made on the dates specified below:

         1. Each  Eligible  Director  who is first  elected  or  appointed  as a
non-employee  Board member on or after the date of the 1999 Annual  Stockholders
Meeting shall  automatically be granted, on the date of such initial election or
appointment  (as the case may be), a  Non-Statutory  Option to  purchase  32,000
shares of Common Stock.

         2. On the date of each Annual Stockholders Meeting,  beginning with the
1999 Annual Meeting,  each individual who is to continue to serve as an Eligible
Director  shall  automatically  be granted,  whether or not such  individual  is
standing  for  re-election  as  a  Board  member  at  that  Annual  Meeting,   a
Non-Statutory  Option to purchase an  additional  8,000 shares of Common  Stock,
provided such individual has served as a non-employee  Board member for at least
six (6) months prior to the date of such Annual Meeting. There shall be no limit
on the number of such  8,000-share  option grants any one Eligible  Director may
receive over his or her period of Board service.

B.       Exercise Price.

         1. The exercise  price per share shall be equal to one hundred  percent
(100%) of the Fair Market  Value per share of Common  Stock on the option  grant
date.

         2. The exercise price shall become immediately due upon exercise of the
option and shall be payable in one or more of the forms specified below:

         (i)      cash or check made payable to the Corporation,

         (ii)     shares of Common Stock held for the requisite period necessary
                  to avoid a charge to the Corporation's  earnings for financial
                  reporting  purposes  and  valued at Fair  Market  Value on the
                  Exercise Date, or


                                       4
<PAGE>


         (iii)    to the  extent  the option is  exercised  for  vested  shares,
                  through a special sale and  remittance  procedure  pursuant to
                  which the  Optionee  shall  concurrently  provide  irrevocable
                  written instructions to (A) a Corporation-designated brokerage
                  firm to effect the immediate sale of the purchased  shares and
                  remit to the Corporation,  out of the sale proceeds  available
                  on  the  settlement  date,   sufficient  funds  to  cover  the
                  aggregate exercise price payable for the purchased shares plus
                  all applicable Federal,  state and local income and employment
                  taxes required to be withheld by the  Corporation by reason of
                  such  exercise  and  (B)  the   Corporation   to  deliver  the
                  certificates   for  the  purchased  shares  directly  to  such
                  brokerage firm in order to complete the sale.

                  Except to the extent  such sale and  remittance  procedure  is
utilized, payment of the exercise price for the purchased shares must be made on
the Exercise Date.

         C.  Option  Term.  Each  option  shall  have a term of ten  (10)  years
measured from the option grant date. 

         D.  Exercise and Vesting of Options.  Each option shall be  immediately
exercisable for any or all of the option shares.  However,  any shares purchased
under the option  shall be  subject to  repurchase  by the  Corporation,  at the
exercise price paid per share,  upon the  Optionee's  cessation of Board service
prior to vesting  in those  shares.  Each  initial  grant  shall  vest,  and the
Corporation's  repurchase  right shall lapse,  in a series of four (4) equal and
successive  annual  installments over the Optionee's period of continued service
as a Board member,  with the first such  installment to vest upon the Optionee's
completion of one (1) year of Board service measured from the option grant date.
Each annual  grant  shall vest,  and the  Corporation's  repurchase  right shall
lapse, upon the Optionee's  completion of one (1) year of Board service measured
from the option grant date.

         E. Effect of  Termination of Board  Service.  The following  provisions
shall  govern the  exercise of any options  held by the Optionee at the time the
Optionee ceases to serve as a Board member:

         (i)      The  Optionee  (or,  in the  event of  Optionee's  death,  the
                  personal representative of the Optionee's estate or the person
                  or persons to whom the option is  transferred  pursuant to the
                  Optionee's  will or in accordance with the laws of descent and
                  distribution)  shall have a twelve (12)-month period following
                  the  date of such  cessation  of  Board  service  in  which to
                  exercise each such option.

         (ii)     During the twelve (12)-month  exercise period,  the option may
                  not be exercised in the  aggregate for more than the number of
                  vested shares for which the option is  exercisable at the time
                  of the Optionee's cessation of Board service.

         (iii)    Should the Optionee cease to serve as a Board member by reason
                  of death or Permanent Disability,  then all shares at the time
                  subject  to the  option  shall  immediately  vest so that such
                  option  may,  during the  twelve  (12)-month  exercise  period
                  following such  cessation of Board  service,  be exercised for
                  all or any portion of such shares as fully-vested shares.


                                       5
<PAGE>


         (iv)     In no event  shall the  option  remain  exercisable  after the
                  expiration  of the option  term.  Upon the  expiration  of the
                  twelve  (12)-month  exercise  period or (if earlier)  upon the
                  expiration of the option term, the option shall  terminate and
                  cease to be  outstanding  for any vested  shares for which the
                  option has not been  exercised.  However,  the  option  shall,
                  immediately  upon the  Optionee's  cessation of Board service,
                  terminate and cease to be  outstanding to the extent it is not
                  exercisable for vested shares on the date of such cessation of
                  Board service.

         F.  Stockholder   Rights.  The  holder  of  an  option  shall  have  no
stockholder  rights with respect to the shares  subject to the option until such
person shall have  exercised  the option,  paid the exercise  price and become a
holder of record of the purchased shares.

         G. Limited  Transferability  of Options.  An automatic  option  granted
under the Plan may, in connection  with the Optionee's  estate plan, be assigned
in whole or in part during the Optionee's lifetime to one or more members of the
Optionee's  immediate  family or to a trust  established  exclusively for one or
more such family  members.  The  assigned  portion may only be  exercised by the
person or persons who acquire a proprietary  interest in the option  pursuant to
the assignment.  The terms  applicable to the assigned portion shall be the same
as those in effect for the option immediately prior to such assignment and shall
be set forth in such documents issued to the assignee as the Plan  Administrator
may deem appropriate.

II.      CORPORATE TRANSACTION/CHANGE IN CONTROL/HOSTILE TAKE-OVER

         A. In the  event of any  Corporate  Transaction,  the  shares of Common
Stock at the time subject to each  outstanding  option but not otherwise  vested
shall  automatically  vest in full so that each such option  shall,  immediately
prior to the specified effective date of the Corporate Transaction, become fully
exercisable  for all of the shares of Common  Stock at the time  subject to such
option  and  may  be  exercised  for  all or  any  portion  of  such  shares  as
fully-vested shares of Common Stock.  Immediately  following the consummation of
the  Corporate  Transaction,  each option grant shall  terminate and cease to be
outstanding,  except to the extent  assumed  by the  successor  corporation  (or
parent thereof).

         B. In connection with any Change in Control, the shares of Common Stock
at the time subject to each  outstanding  option but not otherwise  vested shall
automatically vest in full so that each such option shall,  immediately prior to
the effective date of the Change in Control, become fully exercisable for all of
the  shares  of  Common  Stock at the time  subject  to such  option  and may be
exercised for all or any portion of such shares as fully-vested shares of Common
Stock. Each such option shall remain  exercisable for such  fully-vested  option
shares until the expiration of the option term or the surrender of the option in
connection with a Hostile Take-Over.

         C. Upon the occurrence of a Hostile Take-Over,  the Optionee shall have
a thirty (30)-day  period in which to surrender to the  Corporation  each option
held  by him or  her.  The  Optionee  shall  in  return  be  entitled  to a cash
distribution  from the  Corporation  in an amount equal to the excess of (i) the
Take-Over Price of the shares of Common Stock at the time subject

<PAGE>


to the surrendered  option (whether or not the Optionee is otherwise at the time
vested in those shares) over (ii) the aggregate  exercise price payable for such
shares.  Such cash distribution shall be paid within five (5) days following the
surrender of the option to the Corporation. Stockholder approval of the December
17, 1998 amendment and restatement of the Plan shall constitute  pre-approval of
each  option  surrender  right  subsequently  granted  under  the  Plan  and the
subsequent exercise of that right in accordance with the terms and provisions of
this Section II.C.  No additional  approval of the Board or any committee of the
Board  shall be  required at the time of the actual  option  surrender  and cash
distribution.

         D. The grant of options under the Plan shall in no way affect the right
of the  Corporation to adjust,  reclassify,  reorganize or otherwise  change its
capital or business structure or to merge, consolidate,  dissolve,  liquidate or
sell or transfer all or any part of its business or assets.


                                       7
<PAGE>



                                 ARTICLE Three
                                  MISCELLANEOUS

I.       EFFECTIVE DATE AND TERM OF THE PLAN

         A. The Plan became  effective  on the November 7, 1995  Effective  Date
after  adoption by the Board on July 25, 1995 and approval by the  Corporation's
stockholders in August 1995.

         B. The Plan was  amended  on  February  10,  1997 (the  "February  1997
Amendment") to effect the following  changes:  (i) increase the number of shares
of  Common  Stock  authorized  for  issuance  over  the  term of the  Plan by an
additional  50,000 shares,  (ii) allow unvested shares issued under the Plan and
subsequently  repurchased by the  Corporation at the option  exercise price paid
per share to be reissued  under the Plan and (iii)  effect a series of technical
changes  to  the  provisions  of  the  Plan  (including   stockholder   approval
requirements) in order to take advantage of the recent  amendments to Rule 16b-3
of the  Securities  Exchange  Act of 1934  which  exempts  certain  officer  and
director  transactions under the Plan from the short-swing  liability provisions
of the Federal  securities laws. The February 1997 Amendment was approved by the
stockholders  at the 1997 Annual  Meeting.  The Plan was amended on December 17,
1998 (the  "December  1998  Amendment")  to effect the  following  changes:  (i)
increase the number of shares of Common Stock  authorized  for issuance over the
term of the Plan by an additional  200,000 shares,  (ii) implement the automatic
share  increase  provisions of Section IV.B of Article One,  (iii)  increase the
size of the initial grants to  non-employee  Board members from 16,000 to 32,000
shares  of Common  Stock  and (iv)  increase  the size of the  annual  grants to
non-employee Board members from 4,000 to 8,000 shares of Common Stock. No option
grants  made  on the  basis  of the  200,000-share  increase  authorized  by the
December 1998 Amendment shall become  exercisable in whole or in part unless and
until that amendment is approved by the  stockholders.  Should such  stockholder
approval not be obtained at the 1999 Annual Meeting, then each option grant made
pursuant to the 200,000-share increase authorized by the December 1998 Amendment
shall terminate and cease to remain outstanding,  no further option grants shall
be made on the basis of that share  increase,  and the automatic  share increase
provisions of Section IV.B of Article One shall not be implemented. However, the
provisions  of the Plan as in  effect  immediately  prior to the  December  1998
Amendment shall  automatically  be reinstated,  and option grants may thereafter
continue  to be made  pursuant to the  reinstated  provisions  of the Plan.  All
option grants made prior to the December 1998 Amendment shall remain outstanding
in  accordance  with the  terms and  conditions  of the  respective  instruments
evidencing  those  options  or  issuances,  and  nothing  in the  December  1998
Amendment  shall be  deemed to modify  or in any way  affect  those  outstanding
options or  issuances.  Subject to the  foregoing  limitations,  options  may be
granted  under  the  Plan at any  time  before  the date  fixed  herein  for the
termination of the Plan.

         C. The Plan shall  terminate  upon the  earliest of (i) July 24,  2005,
(ii) the date on which all shares  available  for issuance  under the Plan shall
have been  issued or  cancelled  pursuant  to the  exercise  or  cash-out of the
options under the Plan or (iii) the  termination of all  outstanding  options in
connection with a Corporate Transaction. Upon such Plan termination, all

                                       8
<PAGE>


option  grants  and  unvested  stock  issuances  outstanding  on such date shall
thereafter  continue to have force and effect in accordance  with the provisions
of the documents evidencing such grants or issuances.

II.      AMENDMENT OF THE PLAN

         The Board shall have  complete  and  exclusive  power and  authority to
amend or modify the Plan in any or all respects.  However,  no such amendment or
modification  shall adversely  affect the rights and obligations with respect to
options or  unvested  stock  issuances  at the time  outstanding  under the Plan
unless the Optionee  consents to such  amendment or  modification.  In addition,
certain amendments may require stockholder  approval pursuant to applicable laws
or regulations.

III.     USE OF PROCEEDS

         Any cash proceeds  received by the Corporation  from the sale of shares
of Common Stock under the Plan shall be used for general corporate purposes.

IV.      REGULATORY APPROVALS

         A. The implementation of the Plan, the granting of any option under the
Plan and the  issuance  of any shares of Common  Stock upon the  exercise of any
option shall be subject to the  Corporation's  procurement  of all approvals and
permits required by regulatory  authorities  having  jurisdiction over the Plan,
the options  granted under it and the shares of Common Stock issued  pursuant to
it.

         B. No  shares  of  Common  Stock or other  assets  shall be  issued  or
delivered  under the Plan unless and until there shall have been compliance with
all applicable  requirements of Federal and state securities laws, including the
filing and  effectiveness of the Form S-8 registration  statement for the shares
of Common Stock issuable under the Plan, and all applicable listing requirements
of any stock exchange (or the Nasdaq  National  Market,  if applicable) on which
Common Stock is then listed for trading.

V.       NO EMPLOYMENT/SERVICE RIGHTS

         Nothing  in the Plan  shall  confer  upon  the  Optionee  any  right to
continue  in Service for any period of specific  duration or  interfere  with or
otherwise  restrict in any way the rights of the  Corporation  (or any Parent or
Subsidiary   employing   or  retaining   such  person)  and  the   Corporation's
stockholders or of the Optionee,  which rights are hereby expressly  reserved by
each,  to terminate  such person's  Service at any time for any reason,  with or
without cause.



                                       9
<PAGE>





                                    APPENDIX

         The following definitions shall be in effect under the Plan:

         A. Board shall mean the Corporation's Board of Directors.

         B. Change in Control shall mean a change in ownership or control of the
Corporation effected through either of the following transactions:

                  (i) the  acquisition,  directly or indirectly by any person or
         related group of persons  (other than the  Corporation or a person that
         directly or indirectly  controls,  is controlled by, or is under common
         control with, the  Corporation),  of beneficial  ownership  (within the
         meaning of Rule 13d-3 of the 1934 Act) of  securities  possessing  more
         than fifty  percent  (50%) of the total  combined  voting  power of the
         Corporation's  outstanding  securities pursuant to a tender or exchange
         offer made directly to the Corporation's stockholders; or

                  (ii) a change in the composition of the Board over a period of
         thirty-six (36) consecutive  months or less such that a majority of the
         Board members ceases, by reason of one or more contested  elections for
         Board  membership,  to be comprised of individuals  who either (A) have
         been Board members  continuously  since the beginning of such period or
         (B) have been elected or nominated for election as Board members during
         such period by at least a majority of the Board  members  described  in
         clause  (A) who were  still in  office  at the time  such  election  or
         nomination was approved by the Board.

         C. Code shall mean the Internal Revenue Code of 1986, as amended.

         D. Common Stock shall mean the Corporation's common stock.

         E.   Corporate   Transaction   shall  mean  either  of  the   following
stockholder-approved transactions to which the Corporation is a party:

                  (i) a merger or consolidation  in which securities  possessing
         more than fifty percent (50%) of the total combined voting power of the
         Corporation's  outstanding  securities  are  transferred to a person or
         persons  different from the persons holding those  immediately prior to
         such transaction; or

                  (ii)  the  sale,  transfer  or  other  disposition  of  all or
         substantially all of the Corporation's  assets in complete  liquidation
         or dissolution of the Corporation.

         F. Corporation shall mean SanDisk Corporation, a Delaware corporation.

         G.  Effective  Date shall mean November 7, 1995,  the date on which the
Underwriting Agreement was executed and the initial public offering price of the
Common Stock was established.


                                      A-1
<PAGE>


         H. Eligible Director shall mean a non-employee Board member eligible to
participate in the Plan.

         I.  Exercise  Date shall mean the date on which the  Corporation  shall
have received written notice of the option exercise.

         J. Fair Market  Value per share of Common  Stock on any  relevant  date
shall be determined in accordance with the following provisions:

                  (i) If the  Common  Stock is at the time  traded on the Nasdaq
         National  Market,  then  the Fair  Market  Value  shall be the  closing
         selling  price per share of Common  Stock on the date in  question,  as
         such  price is  reported  by the  National  Association  of  Securities
         Dealers on the Nasdaq National Market or any successor system. If there
         is no  closing  selling  price  for the  Common  Stock  on the  date in
         question, then the Fair Market Value shall be the closing selling price
         on the last preceding date for which such quotation exists.

                  (ii) If the  Common  Stock is at the time  listed on any Stock
         Exchange, then the Fair Market Value shall be the closing selling price
         per share of Common Stock on the date in question on the Stock Exchange
         which serves as the primary market for the Common Stock,  as such price
         is officially  quoted in the  composite  tape of  transactions  on such
         exchange.  If there is no closing selling price for the Common Stock on
         the date in  question,  then the Fair Market Value shall be the closing
         selling  price on the last  preceding  date for  which  such  quotation
         exists.

         K.  Hostile   Take-Over  shall  mean  a  change  in  ownership  of  the
Corporation through the direct or indirect  acquisition by any person or related
group of persons  (other  than the  Corporation  or a person  that  directly  or
indirectly  controls,  is controlled  by, or is under common  control with,  the
Corporation)  of beneficial  ownership  (within the meaning of Rule 13d-3 of the
1934 Act) of  securities  possessing  more than fifty percent (50%) of the total
combined voting power of the Corporation's  outstanding securities pursuant to a
tender or exchange offer made directly to the Corporation's  stockholders  which
the Board does not recommend such stockholders to accept.

         L. 1934 Act shall mean the Securities Exchange Act of 1934, as amended.

         M.  Non-Statutory  Option  shall mean an option not intended to satisfy
the requirements of Code Section 422.

         N.  Optionee  shall mean any person to whom an option is granted  under
the Plan.

         O. Parent shall mean any corporation (other than the Corporation) in an
unbroken  chain of  corporations  ending  with the  Corporation,  provided  each
corporation in the unbroken chain (other than the Corporation) owns, at the time
of the determination,  stock possessing fifty percent (50%) or more of the total
combined  voting power of all classes of stock in one of the other  corporations
in such chain.


                                      A-2
<PAGE>


         P.  Permanent  Disability  shall mean the  inability of the Optionee to
perform  his or her usual  duties as a Board  member by reason of any  medically
determinable  physical or mental impairment expected to result in death or to be
of continuous duration of twelve (12) months or more.

         Q. Plan shall mean the Corporation's 1995 Non-Employee  Directors Stock
Option Plan, as set forth in this document.

         R.  Section  16  Insiders  shall mean an  officer  or  director  of the
Corporation  subject to the short-swing  profit liabilities of Section 16 of the
1934 Act.

         S. Stock  Exchange shall mean either the American Stock Exchange or the
New York Stock Exchange.

         T. Subsidiary  shall mean any corporation  (other than the Corporation)
in an unbroken chain of corporations  beginning with the  Corporation,  provided
each corporation  (other than the last  corporation) in the unbroken chain owns,
at the time of the  determination,  stock possessing fifty percent (50%) or more
of the total  combined  voting power of all classes of stock in one of the other
corporations in such chain.

         U. Take-Over  Price shall mean the greater of (i) the Fair Market Value
per  share  of  Common  Stock  on the  date the  option  is  surrendered  to the
Corporation in connection with a Hostile  Take-Over or (ii) the highest reported
price per share of Common  Stock paid by the tender  offeror in  effecting  such
Hostile Take-Over.

         V.  Underwriting   Agreement  shall  mean  the  agreement  between  the
Corporation and the underwriter or underwriters which managed the initial public
offering of the Common Stock.






                                      A-3









                               SANDISK CORPORATION
                          EMPLOYEE STOCK PURCHASE PLAN

                  AMENDED AND RESTATED AS OF DECEMBER 17, 1998


I.       PURPOSE OF THE PLAN

         This Employee  Stock Purchase Plan is intended to promote the interests
of SanDisk  Corporation by providing  eligible employees with the opportunity to
acquire a proprietary  interest in the Corporation  through  participation  in a
payroll-deduction  based  employee stock purchase plan designed to qualify under
Section 423 of the Code.

         Capitalized terms herein shall have the meanings assigned to such terms
in the attached Appendix.

II.      ADMINISTRATION OF THE PLAN

         The Plan  Administrator  shall have full  authority  to  interpret  and
construe any provision of the Plan and to adopt such rules and  regulations  for
administering  the Plan as it may deem  necessary  in order to  comply  with the
requirements of Code Section 423. Decisions of the Plan  Administrator  shall be
final and binding on all parties having an interest in the Plan.

III.     STOCK SUBJECT TO PLAN

         A. The stock  purchasable  under the Plan shall be shares of authorized
but  unissued or  reacquired  Common  Stock,  including  shares of Common  Stock
purchased on the open market. The maximum number of shares of Common Stock which
may be issued in the aggregate over the term of this Plan and the  Corporation's
International  Employee  Stock  Purchase  Plan shall not exceed One  Million One
Hundred  Eighty-Three  Thousand Three Hundred  Thirty-Three  (1,183,333) shares.
Such share reserve  includes (i) the initial share reserve of 433,333 shares (as
adjusted to reflect the 2:3 split of the Common Stock authorized by the Board on
July 25, 1995) approved by the  stockholders  in August 1996, (ii) an additional
450,000 share increase authorized by the Board on February 10, 1997 and approved
by the  stockholders at the 1997 Annual Meeting and (iii) an additional  300,000
share  increase  authorized  by the  Board on  December  17,  1998,  subject  to
stockholder approval at the 1999 Annual Meeting. No shares of Common Stock shall
be issued under the Plan on the basis of such 300,000-share increase unless that
increase is approved by the stockholders at the 1999 Annual Meeting. In no event
shall more than 741,455 shares of Common Stock be issued in the aggregate  under
this Plan and the  International  Employee  Stock  Purchase Plan after March 15,
1999.

         B. The number of shares of Common Stock  available  for issuance  under
the combined reserve of this Plan and the International Plan shall automatically
increase on the first  trading day of January each calendar year during the term
of  the  Plan,  beginning  with  calendar  year  2002,  by an  amount  equal  to
forty-three  one hundredths of one percent (0.43%) of the shares of Common Stock
outstanding  on the last  trading day in December of the  immediately  preceding
calendar  year,  but in no event shall any such annual  increase  exceed 150,000
shares.


<PAGE>


         C. Should any change be made to the Common Stock by reason of any stock
split,  stock  dividend,  recapitalization,  combination of shares,  exchange of
shares or other change affecting the outstanding Common Stock as a class without
the  Corporation's  receipt of consideration,  appropriate  adjustments shall be
made to (i) the maximum number and class of securities issuable in the aggregate
under this Plan and the International Plan, (ii) the maximum number and/or class
of  securities  by which the  combined  share  reserve  under  this Plan and the
International  Plan is to increase each calendar year pursuant to the provisions
of Section III.B,  (iii) the maximum number and class of securities  purchasable
per  Participant  on any one  Purchase  Date and (iv) the  number  and  class of
securities  and the price per share in effect  under each  outstanding  purchase
right in order to prevent the dilution or enlargement of benefits thereunder.

IV.      OFFERING PERIODS

         A. Shares of Common Stock shall be offered for purchase  under the Plan
through a series  of  successive  Offering  Periods  until  such time as (i) the
maximum  number of shares of Common Stock  available for issuance under the Plan
shall have been purchased or (ii) the Plan shall have been sooner terminated.

         B. Each Offering Period (other than the Initial  Offering Period) shall
have a duration of six (6)  months.  Offering  Periods  shall run from the first
business day in February to the last business day in July each year and from the
first  business  day of August each year to the last  business day in January in
the following year.  However,  the Initial Offering Period shall commence at the
Effective Time and terminate on the last business day in January,  1997.  During
the  Initial  Offering  Period,  there  shall be three (3)  successive  Purchase
Intervals:  the first shall run from the Effective Time to the last business day
in January  1996;  the second shall run from the first  business day in February
1996 to the last  business  day in July  1996;  and the last  shall run from the
first  business  day in August  to the last  business  day in  January  1997.  A
Purchase  Date  shall  occur at the end of each  Purchase  Interval  within  the
Initial Offering Period.  However,  for each subsequent  Offering Period,  there
shall  only be a  single  Purchase  Date  coincident  with  the last day of that
Offering Period.

V.       ELIGIBILITY

         A. Only individuals who are Eligible  Employees on the start date of an
Offering  Period shall be eligible to  participate in the Plan for that Offering
Period.  For the Initial  Offering  Period,  the following  special  eligibility
provisions shall be in effect:

- -        Each  individual who is an Eligible  Employee at the Effective Time may
         enter the Initial  Offering Period at that time or on the start date of
         any subsequent Purchase Interval within that Offering Period,  provided
         he or she remains an Eligible Employee on that date.

- -        Each  individual  who first  becomes  an  Eligible  Employee  after the
         Effective Time may enter the Initial  Offering Period on the start date
         of any  subsequent  Purchase  Interval  within  that  Offering  Period,
         provided he or she is an Eligible Employee on that date.


                                       2
<PAGE>


         B. The date an Eligible  Employee  enters the Offering  Period shall be
designated his or her Entry Date.

         C. To participate  in the Plan for a particular  Offering  Period,  the
Eligible  Employee must  complete the  enrollment  forms  prescribed by the Plan
Administrator  (including a stock  purchase  agreement  and a payroll  deduction
authorization  form) and file such  forms  with the Plan  Administrator  (or its
designate) on or before his or her scheduled Entry Date.

VI.      PAYROLL DEDUCTIONS

         A. The payroll deduction  authorized by the Participant for purposes of
acquiring  shares of Common  Stock  under  the Plan may be any  multiple  of one
percent  (1%) of the  Cash  Compensation  paid to the  Participant  during  each
Offering  Period,  up to a maximum of ten percent  (10%).  The deduction rate so
authorized  shall  continue in effect from Offering  Period to Offering  Period,
except to the  extent  such rate is  changed in  accordance  with the  following
guidelines:

         (i) The Participant may, at any time during an Offering Period,  reduce
         his or her rate of payroll  deduction  to become  effective  as soon as
         possible after filing the appropriate form with the Plan Administrator.
         The  Participant  may  not,  however,  effect  more  than  one (1) such
         reduction per Offering Period or Purchase Interval.

         (ii) The Participant may, prior to the start of any new Offering Period
         or the start of any new Purchase  Interval within the Initial  Offering
         Period, increase the rate of his or her payroll deduction by filing the
         appropriate form with the Plan  Administrator.  The new rate (which may
         not exceed the ten percent (10%) maximum) shall become  effective as of
         the  start  date of the first  Offering  Period  or  Purchase  Interval
         following the filing of such form.

         B. Payroll  deductions  shall begin on the first pay day  following the
Participant's  Entry  Date into the  Offering  Period and shall  (unless  sooner
terminated  by the  Participant)  continue  through  the pay day ending  with or
immediately  prior to the last  day of that  Offering  Period.  The  amounts  so
collected  shall be credited to the  Participant's  book account under the Plan,
but no interest  shall be paid on the balance from time to time  outstanding  in
such account.  The amounts  collected from the Participant  shall not be held in
any  segregated  account or trust fund and may be  commingled  with the  general
assets of the Corporation and used for general corporate purposes.

         C. Payroll deductions shall automatically cease upon the termination of
the Participant's purchase right in accordance with the provisions of the Plan.

         D. The Participant's  acquisition of Common Stock under the Plan on any
Purchase Date shall neither limit nor require the  Participant's  acquisition of
Common Stock on any subsequent Purchase Date.


                                       3
<PAGE>


VII.     PURCHASE RIGHTS

         A. Grant of Purchase  Right. A Participant  shall be granted a separate
purchase  right for each Offering  Period in which he or she  participates.  The
purchase  right  shall be  granted  on the  Participant's  Entry  Date  into the
Offering  Period and shall  provide the  Participant  with the right to purchase
shares of Common Stock upon the terms set forth  below.  The  Participant  shall
execute  a  stock  purchase  agreement  embodying  such  terms  and  such  other
provisions (not inconsistent  with the Plan) as the Plan  Administrator may deem
advisable.

         Under no circumstances  shall purchase rights be granted under the Plan
to any Eligible Employee if such individual would,  immediately after the grant,
own (within the meaning of Code Section 424(d)) or hold  outstanding  options or
other  rights to  purchase,  stock  possessing  five percent (5%) or more of the
total combined  voting power or value of all classes of stock of the Corporation
or any Corporate Affiliate.

         B.  Exercise  of the  Purchase  Right.  The  purchase  right  shall  be
automatically  exercised on each Purchase Date within the Offering  Period,  and
shares  of  Common  Stock  shall  accordingly  be  purchased  on  behalf  of the
Participant (other than any Participant whose payroll deductions have previously
been refunded in accordance  with the  Termination of Purchase Right  provisions
below) on such  Purchase  Date.  The purchase  shall be effected by applying the
Participant's  payroll  deductions  for  the  Offering  Period  or the  Purchase
Interval to the purchase of whole  shares of Common Stock at the purchase  price
in effect for the Participant for the Purchase Date coincident with the last day
of  that  Offering  Period  or  Purchase  Interval.   All  shares  purchased  on
Participant's  behalf shall be directly deposited into an account maintained for
such Participant at a Corporation-designated brokerage firm.

         C. Purchase  Price.  The purchase price per share at which Common Stock
shall be purchased on the Participant's  behalf on each Purchase Date within the
Offering Period shall be equal to eighty-five  percent (85%) of the lower of (i)
the Fair Market Value per share of Common Stock on the Participant's  Entry Date
into  that  Offering  Period or (ii) the Fair  Market  Value per share of Common
Stock on that Purchase Date. However, for each Participant who joins the Initial
Offering Period after the start date, the clause (i) amount shall in no event be
less than the Fair Market  Value per share of Common  Stock on the start date of
the Initial Offering Period.

         D. Number of Purchasable  Shares.  The number of shares of Common Stock
purchasable  by a Participant on each Purchase Date shall be the number of whole
shares  obtained  by  dividing  the  Participant's  payroll  deductions  for the
Offering  Period or Purchase  Interval ending on such date by the purchase price
in effect for the  Participant  for that  Purchase  Date.  However,  the maximum
number of shares of Common Stock purchasable per Participant on any one Purchase
Date shall not exceed  Seven  Hundred  Fifty (750)  shares,  subject to periodic
adjustments in the event of certain changes in the Corporation's capitalization.
However,  the  Plan  Administrator  shall  have  the  discretionary   authority,
exercisable  prior to the start of any Offering Period,  to increase or decrease
the  limitation  to be in  effect  for the  number  of  shares  purchasable  per
Participant on the Purchase Date for that Offering Period.


                                       4
<PAGE>


         E. Excess Payroll Deductions. Any payroll deductions not applied to the
purchase of shares of Common  Stock on any  Purchase  Date  because they are not
sufficient  to  purchase  a whole  share of Common  Stock  shall be held for the
purchase  of  Common  Stock on the next  Purchase  Date.  However,  any  payroll
deductions  not  applied  to the  purchase  of  Common  Stock by  reason  of the
limitation on the maximum number of shares purchasable by the Participant on the
Purchase Date shall be promptly refunded.

         F. Termination of Purchase Right. The following provisions shall govern
the termination of outstanding purchase rights:

         (i)      A  Participant  may,  at any time prior to the next  scheduled
                  Purchase Date, terminate his or her outstanding purchase right
                  by filing the appropriate form with the Plan Administrator (or
                  its  designate),  and no further payroll  deductions  shall be
                  collected from the Participant  with respect to the terminated
                  purchase right.  Any payroll  deductions  collected during the
                  Offering Period or Purchase Interval in which such termination
                  occurs shall, at the  Participant's  election,  be immediately
                  refunded  or held  for the  purchase  of  shares  on the  next
                  scheduled  Purchase  Date.  If no such election is made at the
                  time  such  purchase  right is  terminated,  then the  payroll
                  deductions  collected  with  respect to the  terminated  right
                  shall be refunded as soon as possible.

         (ii)     The  termination of such purchase right shall be  irrevocable,
                  and the Participant may not  subsequently  rejoin the Offering
                  Period for which the terminated purchase right was granted. In
                  order  to  resume  participation  in any  subsequent  Offering
                  Period,  such individual must re-enroll in the Plan (by making
                  a timely  filing  of the  prescribed  enrollment  forms) on or
                  before the start date of that Offering Period.

         (iii)    Should the  Participant  cease to remain an Eligible  Employee
                  for any  reason  (including  death,  disability  or  change in
                  status) while his or her purchase  right remains  outstanding,
                  then that purchase right shall immediately terminate,  and all
                  of the  Participant's  payroll  deductions  for  the  Offering
                  Period or  Purchase  Interval in which the  purchase  right so
                  terminates shall be immediately refunded.  However, should the
                  Participant  cease to remain in active service by reason of an
                  approved unpaid leave of absence,  then the Participant  shall
                  have the  election,  exercisable  up until the last day of the
                  Offering  Period or  Purchase  Interval  in which  such  leave
                  commences,   to  (a)  withdraw  all  the  payroll   deductions
                  collected  to  date on his or her  behalf  for  such  Offering
                  Period or  Purchase  Interval  or (b) have such funds held for
                  the purchase of shares on the next scheduled Purchase Date. In
                  no event,  however,  shall any further  payroll  deductions be
                  collected on the Participant's  behalf during such leave. Upon
                  the  Participant's  return to active service (x) within ninety
                  (90) days  following  the  commencement  of such  leave or (y)
                  prior to the  expiration  of any longer  period for which such
                  Participant's  right to  reemployment  with the Corporation is
                  guaranteed by either  statute or contract,  his or her payroll
                  deductions  under the Plan shall  automatically  resume at the
                  rate in  effect  at the  time  the  leave  began,  unless  the
                  Participant  withdraws  from  the  Plan  prior  to  his or her
                  return.   An  individual  who  returns  to  active  employment
                  following a leave of absence  which  exceeds in  duration  the
                  applicable (x) or (y) time period will be treated as a new

                                       5
<PAGE>


                  Employee for purposes of subsequent  participation in the Plan
                  and must accordingly re-enroll in the Plan (by making a timely
                  filing of the  prescribed  enrollment  forms) on or before the
                  start date of any new Offering Period or Purchase Interval.

         G.  Corporate  Transaction.   Each  outstanding  purchase  right  shall
automatically  be  exercised,  immediately  prior to the  effective  date of any
Corporate Transaction, by applying the payroll deductions of each Participant to
the purchase of whole shares of Common Stock at a purchase price per share equal
to eighty-five percent (85%) of the lower of (i) the Fair Market Value per share
of Common  Stock on the  Participant's  Entry Date into the  Offering  Period in
which such Corporate  Transaction occurs or (ii) the Fair Market Value per share
of  Common  Stock  immediately  prior to the  effective  date of such  Corporate
Transaction.  However,  the  applicable  limitation  on the  number of shares of
Common  Stock  purchasable  per  Participant  shall  continue  to  apply to each
purchase.

         The  Corporation  shall use its best  efforts  to  provide at least ten
(10)-days  prior written notice of the occurrence of any Corporate  Transaction,
and Participants shall,  following the receipt of such notice, have the right to
terminate their  outstanding  purchase rights prior to the effective date of the
Corporate Transaction.

         H. Proration of Purchase  Rights.  Should the total number of shares of
Common  Stock to be purchased  pursuant to  outstanding  purchase  rights on any
particular  date exceed the number of shares then  available for issuance  under
the  Plan,  the Plan  Administrator  shall  make a  pro-rata  allocation  of the
available  shares on a uniform  and  nondiscriminatory  basis,  and the  payroll
deductions  of each  Participant,  to the  extent  in  excess  of the  aggregate
purchase price payable for the Common Stock pro-rated to such individual,  shall
be refunded.

         I. Assignability. During the Participant's lifetime, the purchase right
shall be  exercisable  only by the  Participant  and shall not be  assignable or
transferable.

         J. Stockholder  Rights. A Participant shall have no stockholder  rights
with  respect to the shares  subject to his or her  outstanding  purchase  right
until the shares are purchased on the  Participant's  behalf in accordance  with
the provisions of the Plan and the  Participant has become a holder of record of
the purchased shares.

VIII.    ACCRUAL LIMITATIONS

         A. No Participant  shall be entitled to accrue rights to acquire Common
Stock pursuant to any purchase right  outstanding  under this Plan if and to the
extent such accrual,  when  aggregated  with (i) rights to purchase Common Stock
accrued under any other  purchase right granted under this Plan and (ii) similar
rights  accrued under other employee stock purchase plans (within the meaning of
Code Section 423) of the Corporation or any Corporate Affiliate, would otherwise
permit such  Participant  to purchase  more than  Twenty-Five  Thousand  Dollars
($25,000)  worth  of  stock  of  the  Corporation  or  any  Corporate  Affiliate
(determined  on the basis of the Fair Market  Value of such stock on the date or
dates such rights are  granted)  for each  calendar  year such rights are at any
time outstanding.


                                       6
<PAGE>


         B. For purposes of applying  such accrual  limitations  to the purchase
rights granted under this Plan, the following provisions shall be in effect:

         (i)      The right to  acquire  Common  Stock  under  each  outstanding
                  purchase  right shall  accrue in one or more  installments  on
                  each Purchase  Date within the Offering  Period for which such
                  right is granted.

         (ii)     No  right  to  acquire  Common  Stock  under  any  outstanding
                  purchase right shall accrue to the extent the  Participant has
                  already accrued in the same calendar year the right to acquire
                  Common Stock under one (1) or more other purchase  rights at a
                  rate equal to Twenty-Five  Thousand Dollars ($25,000) worth of
                  Common Stock (determined on the basis of the Fair Market Value
                  of such stock on the date or dates of grant) for each calendar
                  year such rights were at any time outstanding.

         C. If by reason of such accrual  limitations,  the purchase  right of a
Participant  does not accrue for a particular  Offering  Period (or a particular
Purchase  Interval  within  the  Initial  Offering  Period),  then  the  payroll
deductions  which the Participant  made during that Offering Period (or Purchase
Interval)  with  respect to such  unaccrued  purchase  right  shall be  promptly
refunded.

         D. In the event there is any conflict  between the  provisions  of this
Article  and  one or  more  provisions  of the  Plan  or any  instrument  issued
thereunder, the provisions of this Article shall be controlling.

IX.      EFFECTIVE DATE AND TERM OF THE PLAN

         A. The Plan was adopted by the Board on July 25, 1995 and shall  become
effective at the Effective  Time,  provided no purchase rights granted under the
Plan  shall be  exercised,  and no  shares  of  Common  Stock  shall  be  issued
hereunder,  until (i) the Plan shall have been approved by the  stockholders  of
the Corporation and (ii) the Corporation shall have complied with all applicable
requirements of the 1933 Act (including the registration of the shares of Common
Stock issuable under the Plan on a Form S-8  registration  statement  filed with
the Securities and Exchange Commission),  all applicable listing requirements of
any stock exchange (or the Nasdaq National  Market,  if applicable) on which the
Common  Stock is  listed  for  trading  and all  other  applicable  requirements
established by law or regulation.  In the event such stockholder approval is not
obtained,  or such  compliance is not effected,  within twelve (12) months after
the date on which the Plan is adopted by the Board, the Plan shall terminate and
have no further force or effect and all sums collected from Participants  during
the Initial Offering Period shall be refunded.

         B. Unless sooner terminated by the Board, the Plan shall terminate upon
the earliest of (i) the last  business day in July 2005,  (ii) the date on which
all shares  available for issuance  under the Plan shall have been sold pursuant
to  purchase  rights  exercised  under  the Plan or (iii)  the date on which all
purchase  rights are exercised in connection  with a Corporate  Transaction.  No
further  purchase  rights shall be granted or exercised,  and no further payroll
deductions shall be collected, under the Plan following such termination.


                                       7
<PAGE>


X.       AMENDMENT OF THE PLAN

         A. The Board may alter,  amend,  suspend or discontinue the Plan at any
time to become effective  immediately following the close of any Offering Period
or Purchase  Interval.  However,  the Board may not, without the approval of the
Corporation's  stockholders,  (i)  materially  increase  the number of shares of
Common Stock issuable under the Plan, except for permissible  adjustments in the
event of certain  changes in the  Corporation's  capitalization,  (ii) alter the
purchase price formula so as to reduce the purchase price payable for the shares
of Common Stock  purchasable under the Plan or (iii) modify the requirements for
eligibility to participate in the Plan.

         B. On February 10, 1997,  the Board adopted an amendment to the Plan to
increase the number of shares of Common Stock authorized for issuance under this
Plan and the International Employee Stock Purchase Plan by an additional 450,000
shares in the aggregate.  This amendment was approved by the stockholders at the
1997 Annual Meeting.  On December 17, 1998, the Board adopted  amendments to the
plan to (i)  increase  the  number  of shares of  Common  Stock  authorized  for
issuance in the aggregate under this Plan and the  International  Employee Stock
Purchase  Plan  by an  additional  300,000  shares  and  (ii) to  implement  the
automatic  share  increase  provisions of Section  III.B.  These  amendments are
subject to stockholder approval at the 1999 Annual Meeting, and no shares may be
issued on the basis of the  300,000  share  increase  unless and until the share
increase is approved by the stockholders.  Should such stockholder  approval not
be  obtained  at the 1999  Annual  Meeting,  then the  maximum  number of shares
available  for  subsequent  issuance  in the  aggregate  under this Plan and the
International Employee Stock Purchase Plan shall not exceed the number of shares
which remained  available for issuance  immediately  prior to the  300,000-share
increase  authorized by the Board on December 17, 1998, and the automatic  share
increase provisions of Section III.B shall not be implemented.

XI.      GENERAL PROVISIONS

         A. All costs and expenses  incurred in the  administration  of the Plan
shall be paid by the Corporation.

         B. Nothing in the Plan shall confer upon the  Participant  any right to
continue in the employ of the  Corporation  or any  Corporate  Affiliate for any
period of specific  duration or interfere with or otherwise  restrict in any way
the rights of the Corporation (or any Corporate Affiliate employing such person)
or of the Participant,  which rights are hereby  expressly  reserved by each, to
terminate such person's  employment at any time for any reason,  with or without
cause.

         C. The  provisions  of the Plan  shall be  governed  by the laws of the
State of California without resort to that State's conflict-of-laws rules.


                                       8
<PAGE>





                                   Schedule A

                          Corporations Participating in
                          Employee Stock Purchase Plan
                            As of the Effective Time


                               SanDisk Corporation


<PAGE>




                                    APPENDIX

         The following definitions shall be in effect under the Plan:

         A. Board shall mean the Corporation's Board of Directors.

         B. Cash  Compensation  shall mean the (i) regular base salary paid to a
Participant  by one or more  Participating  Companies  during such  individual's
period of  participation  in one or more Offering  Periods under the Plan,  plus
(ii) any  pre-tax  contributions  made by the  Participant  to any Code  Section
401(k) salary  deferral plan or any Code Section 125 cafeteria  benefit  program
now or hereafter established by the Corporation or any Corporate Affiliate, plus
(iii)  all of the  following  amounts  to the  extent  paid  in  cash:  overtime
payments,   bonuses,   commissions,   profit-sharing   distributions  and  other
incentive-type  payments.  However,  Eligible  Earnings  shall not  include  any
contributions (other than Code Section 401(k) or Code Section 125 contributions)
made on the Participant's  behalf by the Corporation or any Corporate  Affiliate
to any deferred  compensation  plan or welfare  benefit program now or hereafter
established.

         C. Code shall mean the Internal Revenue Code of 1986, as amended.

         D. Common Stock shall mean the Corporation's common stock.

         E. Corporate Affiliate shall mean any parent or subsidiary  corporation
of the Corporation (as determined in accordance with Code Section 424),  whether
now existing or subsequently established.

         F.   Corporate   Transaction   shall  mean  either  of  the   following
stockholder-approved transactions to which the Corporation is a party:

         (i)      a merger or consolidation in which securities  possessing more
                  than fifty percent (50%) of the total combined voting power of
                  the Corporation's  outstanding securities are transferred to a
                  person or persons  different  from the persons  holding  those
                  securities immediately prior to such transaction, or

         (ii)     the   sale,   transfer   or  other   disposition   of  all  or
                  substantially all of the assets of the Corporation in complete
                  liquidation or dissolution of the Corporation.

         G. Corporation shall mean SanDisk Corporation,  a Delaware corporation,
and any corporate  successor to all or substantially all of the assets or voting
stock of SanDisk Corporation which shall by appropriate action adopt the Plan.

         H.  Effective  Time shall mean November 7, 1995,  the time at which the
Underwriting  Agreement was executed and finally priced. Any Corporate Affiliate
which  becomes a  Participating  Corporation  after  such  Effective  Time shall
designate a subsequent Effective Time with respect to its employee-Participants.


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<PAGE>


         I.  Eligible  Employee  shall  mean any  person  who is  employed  by a
Participating  Company on a basis under which he or she is regularly expected to
render  more than  twenty  (20) hours of service per week for more than five (5)
months per  calendar  year for  earnings  considered  wages  under Code  Section
3401(a).

         J. Entry Date shall mean the date an Eligible  Employee first commences
participation  in the  Offering  Period in effect  under the Plan.  The earliest
Entry Date under the Plan shall be the Effective Time.

         K. Fair Market  Value per share of Common  Stock on any  relevant  date
shall be determined in accordance with the following provisions:

         (i)      If the  Common  Stock  is at the  time  traded  on the  Nasdaq
                  National  Market,  then the  Fair  Market  Value  shall be the
                  closing selling price per share of Common Stock on the date in
                  question,   as  such  price  is  reported   by  the   National
                  Association  of  Securities  Dealers  on the  Nasdaq  National
                  Market or any successor system. If there is no closing selling
                  price for the Common Stock on the date in  question,  then the
                  Fair Market  Value shall be the closing  selling  price on the
                  last preceding date for which such quotation exists.

         (ii)     If  the  Common  Stock  is at the  time  listed  on any  Stock
                  Exchange,  then the Fair  Market  Value  shall be the  closing
                  selling  price  per  share  of  Common  Stock  on the  date in
                  question  on  the  Stock  Exchange   determined  by  the  Plan
                  Administrator  to be the primary  market for the Common Stock,
                  as such price is officially  quoted in the  composite  tape of
                  transactions on such exchange.  If there is no closing selling
                  price for the Common Stock on the date in  question,  then the
                  Fair Market  Value shall be the closing  selling  price on the
                  last preceding date for which such quotation exists.

         L.  Initial  Offering  Period shall mean the first  Offering  Period in
effect  under the Plan which began at the  Effective  Time and ended on the last
business day in January 1997.

         M. 1933 Act shall mean the Securities Act of 1933, as amended.

         N.  Offering  Period  shall mean each  successive  period  during which
payroll deductions are to be collected on the behalf of Participants and applied
to the  purchase  of Common  Stock on one or more  Purchase  Dates  within  that
period.

         O.  Participant  shall mean any  Eligible  Employee of a  Participating
Corporation who is actively participating in the Plan.

         P.  Participating  Corporation  shall  mean  the  Corporation  and such
Corporate  Affiliate or Affiliates as may be authorized from time to time by the
Board to  extend  the  benefits  of the Plan to their  Eligible  Employees.  The
Participating  Corporations  in the Plan as of the Effective  Time are listed in
attached Schedule A.


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<PAGE>


         Q. Plan shall mean the  Corporation's  Employee Stock Purchase Plan, as
set forth in this document.

         R. Plan Administrator shall mean the committee of two (2) or more Board
members appointed by the Board to administer the Plan.


         S.  Purchase  Date shall mean the last business day of January and July
each year on which  shares of Common  Stock shall be purchased on behalf of each
Participant.

         T. Purchase  Interval shall mean each of three (3)  successive  periods
within the Initial  Offering Period at the end of which there shall be purchased
shares  of  Common  Stock on behalf  of each  Participant.  The  first  Purchase
Interval  shall begin at the Effective  Time and end on the last business day in
January 1996; the second Purchase Interval shall begin on the first business day
in February  1996 and end on the last  business day in July 1996;  and the final
Purchase  Interval  shall begin on the first business day in August 1996 and end
on the last business day in January 1997.

         U. Stock  Exchange shall mean either the American Stock Exchange or the
New York Stock Exchange.

         V.  Underwriting   Agreement  shall  mean  the  agreement  between  the
Corporation and the underwriter or underwriters which managed the initial public
offering of the Common Stock.



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