PINNACLE SYSTEMS INC
S-3, 1997-09-15
PHOTOGRAPHIC EQUIPMENT & SUPPLIES
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      As filed with the Securities and Exchange Commission on September 12, 1997
                                                    Registration No. 333-_______
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                           ---------------------------

                                    Form S-3
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

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

                             PINNACLE SYSTEMS, INC.
             (Exact name of Registrant as specified in its charter)


           California                                         94-3003809
  (State or other jurisdiction                              (IRS Employer
of incorporation or organization)                       Identification Number)
                                         
                              280 North Bernardo Ave.            
                          Mountain View, California 94043        
                                   (650) 526-1600                
                         (Address, including zip code, and       
                       telephone number, including area code, of               
                       Registrant's principal executive offices) 
                                                                 
                               ARTHUR D. CHADWICK
                   Vice President, Finance and Administration,
                      Chief Financial Officer and Secretary
                             PINNACLE SYSTEMS, INC.
                             280 North Bernardo Ave.
                         Mountain View, California 94043
                                 (650) 526-1600
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

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

                                   Copies to:
                              ROBERT P. LATTA, ESQ.
                             CHRIS F. FENNELL, ESQ.
                        Wilson Sonsini Goodrich & Rosati
                            Professional Corporation
                               650 Page Mill Road
                           Palo Alto, California 94304
                                 (650) 493-9300

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

        Approximate date of commencement of proposed sale to the public:
As soon as practicable after the effective date of this Registration Statement.

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

         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. [ ]

         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933, as amended (the "Securities  Act") other than securities
offered only in connection with dividend or interest  reinvestment plans, please
check the following box. [X]

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. [ ] __________

         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the  Securities  Act,  please check the  following box and list the
Securities  Act  registration   statement   number  of  the  earlier   effective
registration statement for the same offering. [ ] __________

         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following box. [ ]

                           ---------------------------
<TABLE>

                                                 CALCULATION OF REGISTRATION FEE
<CAPTION>
====================================================================================================================================
                                                                          Proposed
                                                                          Maximum               Proposed
                                                     Amount               Offering              Maximum
            Title of Each Class of                    to be              Price Per             Aggregate             Amount of
         Securities to be Registered               Registered             Share(1)         Offering Price(1)    Registration Fee(1)
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                <C>                     <C>                 <C>                      <C>   
Common Stock, no par value per share..........     203,565(2)              $24.31              $4,948,665               $1,500
====================================================================================================================================
<FN>
(1)  Estimated   solely  for  the  purpose  of  computing   the  amount  of  the
     registration  fee.  The  estimate  is  made  pursuant  to  Rule  457 of the
     Securities Act of 1933, as amended.

(2)  Includes  Preferred Share Purchase Rights which, prior to the occurrence of
     certain  events,  will not be exercisable or evidenced  separately from the
     Common Stock.
</FN>
</TABLE>

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

         The Registrant hereby amends this  Registration  Statement on such date
or dates as may be necessary to delay its  effective  date until the  Registrant
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

================================================================================
<PAGE>

Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.

PROSPECTUS (Subject to Completion)
Issued September 12, 1997

                                 203,565 Shares

                             PINNACLE SYSTEMS, INC.

                                  COMMON STOCK
                                 (no par value)

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


         This Prospectus may be used in connection with the offer and sale, from
time to time, of up to 203,565  shares (the  "Shares") of Common  Stock,  no par
value (the  "Common  Stock"),  of  Pinnacle  Systems,  Inc.  ("Pinnacle"  or the
"Company"),  for the  account  of  Miro  Computer  Products  AG,  a  corporation
organized  under the laws of Germany  (the  "Selling  Shareholder").  All of the
Shares  covered  hereby are to be sold by the Selling  Shareholder.  The Company
will not  receive  any of the  proceeds of sales made  hereunder.  The  expenses
incurred in registering the Shares, including legal and accounting fees, will be
borne by the Company.  None of the shares  offered  pursuant to this  Prospectus
have been registered prior to the filing of the Registration  Statement of which
this Prospectus is a part.

         The Shares offered hereby were acquired by the Selling Shareholder from
the Company in connection  with the acquisition by the Company of certain of the
assets of the  Selling  Shareholder  and  certain  subsidiaries  of the  Selling
Shareholder in August 1997. The Shares may be offered and sold from time to time
by the Selling  Shareholder  directly or through  broker-dealers or underwriters
who may act solely as agents,  or who may acquire the Shares as principals.  The
distribution of the Shares may be effected in one or more  transactions that may
take place  through  the  Nasdaq  National  Market,  including  block  trades or
ordinary broker's transactions, or through privately negotiated transactions, or
through a combination  of any such methods of sale, at market prices  prevailing
at the time of sale, at prices  related to such  prevailing  market prices or at
negotiated prices. Usual and customary or specially negotiated brokerage fees or
commissions  may be paid by the  Selling  Shareholder  in  connection  with such
sales. See "Plan of Distribution."

         The Common  Stock of Pinnacle is traded on the Nasdaq  National  Market
under the symbol  "PCLE." On  September  11,  1997,  the closing sale price of a
share of Pinnacle's Common Stock on the Nasdaq National Market was $24.75.

         See "Risk  Factors" on page 4 for a discussion of certain  factors that
should be  considered  by  prospective  purchasers  of the Common Stock  offered
hereby.

         The Selling  Shareholder  and any broker  executing  selling  orders on
behalf of the Selling  Shareholder may be deemed to be an  "underwriter"  within
the meaning of the  Securities Act of 1933, as amended (the  "Securities  Act").
Commissions  received  by any  such  broker  may be  deemed  to be  underwriting
commissions under the Securities Act.

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

         No  person  is  authorized  to give  any  information  or to  make  any
representations,  other than those contained in this  Prospectus,  in connection
with the offering  described herein,  and, if given or made, such information or
representations  must  not be  relied  upon as  having  been  authorized  by the
Company. This Prospectus does not constitute an offer to sell, or a solicitation
of an offer to buy,  nor  shall  there  be any sale of these  securities  by any
person in any  jurisdiction in which it is unlawful for such person to make such
offer,  solicitation  or sale.  Neither the delivery of this  Prospectus nor any
sale made hereunder shall under any circumstances create an implication that the
information  contained  herein is correct as of any time  subsequent to the date
hereof.

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

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
       AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED
              UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                 The date of this Prospectus is _________, 1997
                                                              

<PAGE>

                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----
Available Information..........................................................2
Information Incorporated by Reference..........................................3
Forward Looking Information....................................................3
The Company....................................................................4
Risk Factors...................................................................4
Use of Proceeds................................................................9
Selling Shareholder............................................................9
Plan of Distribution...........................................................9
Experts  .....................................................................10
Legal Matters.................................................................10


                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  information   requirements  of  the
Securities  Exchange  Act of  1934  (the  "Exchange  Act"),  and  in  accordance
therewith, files reports, proxy and information statements and other information
with the Securities and Exchange  Commission (the  "Commission").  Such reports,
statements  and other  information  can be  inspected  and  copied at the public
reference  facilities  maintained by the  Commission at its office at Room 1034,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the Commission's regional
offices at  Northwestern  Atrium Center,  500 West Madison  Street,  Suite 1400,
Chicago, Illinois 60661 and 7 World Trade Center, Suite 1300, New York, New York
10048.  Copies of such  materials  can be  obtained  from the  Public  Reference
Section of the Commission,  450 Fifth Street, N.W.,  Washington,  D.C. 20549, at
prescribed  rates.  The  Commission  also  maintains  a World Wide Web site that
contains  reports,  proxy  and  information  statements  and  other  information
regarding  registrants,  such as the Company,  that file electronically with the
Commission. The address of the site is http://www.sec.gov.  The Company's Common
Stock is quoted on the Nasdaq National  Market.  Reports,  proxy  statements and
other  information  concerning the Company can also be inspected at the National
Association of Securities Dealers,  Inc., 1735 K Street N.W.,  Washington,  D.C.
20002.

         The Company has filed with the Commission a  registration  statement on
Form S-3 (together with all amendments and exhibits  thereto,  the "Registration
Statement")  under the  Securities  Act with respect to the Common Stock offered
hereby. This Prospectus, which constitutes a part of the Registration Statement,
does not contain all of the information set forth in the Registration Statement,
certain parts of which are omitted in accordance  with the rules and regulations
of the Commission.  For further  information with respect to the Company and the
Common Stock offered hereby, reference is made to the Registration Statement and
to the exhibits and  schedules  filed  therewith.  Statements  contained in this
Prospectus  as to the  contents  of any  contract  or  other  document  are  not
necessarily complete, and in each instance reference is made to the copy of such
contract or other  document filed as an exhibit to the  Registration  Statement,
each such statement being qualified in all respects by such reference.

                                       -2-

<PAGE>

                      INFORMATION INCORPORATED BY REFERENCE

         There are hereby  incorporated  by  reference  in this  Prospectus  the
following documents and information heretofore filed with the Commission:

         (1)      the  Company's  Annual Report on Form 10-K for the fiscal year
                  ended June 30, 1997;

         (2)      the  Company's  Current  Report on Form 8-K filed on September
                  12, 1997;

         (3)      the description of the Company's Common Stock contained in its
                  Registration   Statement   on  Form  8-A  as  filed  with  the
                  Commission on September 9, 1994; and

         (4)      the  description  of the Company's  Preferred  Share  Purchase
                  Rights contained in its Registration  Statement on Form 8-A as
                  filed with the Commission on December 19, 1996.

         All documents filed by the Company pursuant to Section 13(a), 13(c), 14
or 15(d) of the Exchange Act after the date of this  Prospectus and prior to the
termination of the offering of securities contemplated hereby shall be deemed to
be incorporated by reference in this Prospectus and to be a part hereof from the
date  of  filing  of such  documents.  Any  statement  contained  in a  document
incorporated  by  reference  or deemed to be  incorporated  by reference in this
Prospectus shall be deemed to be modified or superseded for all purposes of this
Prospectus to the extent that a statement  contained  herein,  therein or in any
subsequently  filed  document  which  also  is  incorporated  or  deemed  to  be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded  shall not be deemed,  except as so modified
or superseded, to constitute a part of this Prospectus.

         The Company hereby  undertakes to provide without charge to each person
to whom a copy of this Prospectus has been  delivered,  upon the written or oral
request of such person, a copy of any and all of the documents referred to above
which have been or may be incorporated  in this  Prospectus by reference  (other
than  exhibits  to  such  documents,   unless  such  exhibits  are  specifically
incorporated by reference therein).  Requests for such copies should be directed
to: Chief Financial Officer,  Pinnacle Systems, Inc., 280 North Bernardo Avenue,
Mountain View, California 94043; telephone number (650) 526-1600.


                           FORWARD LOOKING INFORMATION

         This  Prospectus,  including the information  incorporated by reference
herein, contains forward-looking statements within the meaning of Section 27A of
the  Securities  Act and Section 21E of the Exchange Act.  Actual  results could
differ  materially from those projected in the  forward-looking  statements as a
result of the risk factors set forth below.  Reference is made in  particular to
the  discussion  set  forth  under  "Management's  Discussion  and  Analysis  of
Financial  Condition and Results of Operations" in the Annual Report on Form 10-
K for the fiscal year ended June 30, 1997,  incorporated herein by reference. In
connection with  forward-looking  statements which appear in these  disclosures,
prospective  purchasers  of the Common Stock  offered  hereby  should  carefully
consider the factors set forth in this Prospectus under "Risk Factors."

                                       -3-

<PAGE>

                                   THE COMPANY

         Pinnacle  Systems,   Inc.   ("Pinnacle"  or  the  "Company")   designs,
manufactures,  markets and supports video post-production tools for high quality
real time video  processing.  The Company's  products combine computer based and
specialized  video  processing  technologies  which  perform a variety  of video
post-production  functions such as the addition of special effects, graphics and
titles to multiple  streams of live or previously  recorded video material.  The
Company  has sold  over  10,000  post-production  systems  since  the  company's
inception in 1986 to customers  in more than 60  countries.  In 1994 the Company
introduced  Alladin,  its first PC-based  product that connected  directly to an
external computer and offered  real-time video  manipulation and special effects
capabilities with performance  comparable to traditional video products but at a
substantially  lower price.  The Company has since  introduced  additional video
products  which  address  needs in the  broadcast,  desktop and  consumer  video
post-production markets.

         The  Company  was  incorporated  in  California  in 1986.  The  Company
maintains its executive  offices at 280 North  Bernardo  Avenue,  Mountain View,
California 94043, and its telephone number is (650) 526-1600.


                                  RISK FACTORS

         Risks Associated with Acquisition. In August 1997, the Company acquired
the Miro Digital Video Group from Miro Computer  Products AG. As a result of the
acquisition,  the Company  acquired the assets of the Miro Digital  Video Group,
including the miroVIDEO and  miroMOTION  product lines,  certain  technology and
other  assets.  Anticipated  benefits  of the  acquisition  will not be achieved
unless the operations being acquired are successfully combined with those of the
Company in a timely manner. Such combination will require substantial  attention
from  management.   The  diversion  of  the  attention  of  management  and  any
difficulties encountered in the transition process could have a material adverse
impact on the revenues and operating results of the Company.  The integration of
the Digital Video Group product lines will also require integration of the newly
acquired product  offerings and the coordination of the research and development
and sales and marketing efforts of the Digital Video Group and the Company.  The
difficulties of  assimilation  may be increased by the necessity of coordinating
geographically  separated  organizations,  integrating  personnel with disparate
business  backgrounds  and  combining  two  different  corporate  cultures.   In
addition,  the process of assimilating  the Digital Video Group into the Company
could cause the interruption of, or a loss of momentum in, the activities of the
Company's  business,  which could have a material adverse effect on the Company.
There can be no assurance  that the Company will realize any of the  anticipated
benefits of the acquisition.  In addition,  the announcement and consummation of
the acquisition could cause customers and potential  customers of the Company or
the Digital  Video Group to delay or cancel  orders for  products as a result of
customer  concerns and  uncertainty  over product  evaluation,  integration  and
support.  Such a delay or cancellation  of orders could have a material  adverse
effect on the  business,  results of operations  and financial  condition of the
Company.  The Company  anticipates  that a  significant  portion of the purchase
price  will  be  charged  as  in-process  research  and  development  and  other
non-recurring  costs in the quarter ending September 30, 1997. In addition,  the
negotiation  and  implementation  of the  acquisition  will result in  aggregate
(pre-tax)  expenses  to the  Company of  approximately  $2.0  million  for costs
associated  with  executing the  transaction  and  integrating  the  businesses.
Although  the  Company  does not believe  costs will  exceed the  aforementioned
amount, there can be no assurance that the Company's estimate is correct or that
unanticipated contingencies will not occur that could substantially increase the
costs of combining the operations of the Miro

                                       -4-

<PAGE>

Digital Video Group with those of the Company.  In any event,  costs  associated
with the acquisition will negatively  impact the Company's results of operations
in the quarter ending September 30, 1997.

         Concentration of Sales With OEMs. The Company has been highly dependent
on sales of Alladin and Genie products through original equipment  manufacturers
("OEMs"),  in particular Avid Technology,  Inc. ("Avid").  This concentration of
net sales subjects the Company to a number of risks, in particular the risk that
its  operating  results  will vary on a quarter to quarter  basis as a result of
variations  in the ordering  patterns of the OEM  customers.  Variations  in the
timing of revenues can cause  significant  fluctuations in quarterly  results of
operations.  The Company's  results of operations  have in the past and could in
the future be materially adversely affected by the failure of anticipated orders
to  materialize,  by deferrals  or  cancellations  of orders,  or if overall OEM
demand were to decline.  For example,  sales to Avid decreased  sequentially for
the quarters ended June 30, September 30, and December 31, 1996  contributing to
the overall decline in net sales for the Company during those same periods,  and
then sales to Avid increased  sequentially for the quarter ended March 31, 1997,
and then again in the quarter ended June 30, 1997. If orders from OEM customers,
and in particular  Avid,  were to decrease,  the Company's  business,  operating
results and financial condition would be materially adversely affected.

         Significant  Fluctuations in Quarterly Operating Results. The Company's
quarterly operating results have in the past varied, and are expected to vary in
the  future  as a  result  of a number  of  factors,  including  the  timing  of
significant  orders from and  shipments to major OEM  customers,  in  particular
Avid, the timing and market acceptance of new products or technological advances
by the Company and its  competitors,  the mix of distribution  channels  through
which the  Company's  products  are sold,  changes  in pricing  policies  by the
Company and its  competitors,  the accuracy of resellers'  forecasts of end user
demand,  the ability of the Company to obtain  sufficient  supplies of the major
subassemblies used in its products from its  subcontractors,  the ability of the
Company and its subcontractors to obtain sufficient  supplies of sole or limited
source components for the Company's  products,  and general economic  conditions
both domestically and  internationally.  The Company's expense levels are based,
in part, on its  expectations as to future revenue and, as a result,  net income
would be disproportionately affected by a reduction in net sales.

         The Company experiences  significant  fluctuations in orders and sales,
due mainly to reduced customer  purchasing activity during the summer months the
timing of major trade shows and the sale of consumer products in anticipation of
the holiday season. Sales usually slowdown during the summer months,  especially
in Europe.  The Company  attends a number of trade shows which can influence the
order  pattern  of  products  shown  at  those  shows   including  the  National
Association of Broadcasters  (NAB) convention held in April,  the  International
Broadcasters  Convention  (IBC) held in  September  and the COMDEX  show held in
November of each year.  The Company  expects  that its  operating  results  will
fluctuate  in the  future  as a result of these  and  other  factors,  including
changes  in the rate of sales to OEM  customers,  in  particular  Avid,  and the
Company's  success in  developing,  introducing  and shipping new  products,  in
particular  DVExtreme,  Lightning,  and  VideoDirector  Studio 200. Due to these
factors and the  potential  quarterly  fluctuations  in operating  results,  the
Company  believes  that   quarter-to-quarter   comparisons  of  its  results  of
operations  are not  necessarily  meaningful  and should  not be relied  upon as
indicators of future performance.

         Risks Associated with the Consumer Market. The Company recently entered
the Consumer market with the purchase of Video Director product in June 1996 and
began shipping the VideoDirector  Studio 200 product in March 1997. In addition,
the Company expects to expend considerable resources to develop, market and sell
products  into  the  consumer  video  market.  The  Company  has  limited  prior
experience developing, marketing and selling products into this market which has
certain risks. Because the


                                       -5-

<PAGE>

VideoDirector  Studio 200 must be used with a personal computer, a camcorder and
a VCR not  supplied  by the  Company,  consumer  acceptance  will  be  adversely
affected to the extent end users  experience  difficulties  installing and using
the  VideoDirector  Studio 200 with these  components.  The  Company has limited
experience  selling products through the consumer  distribution  channel.  To be
successful  in this  market  it is  necessary  that the  Company  establish  and
maintain  an  effective   consumer   distribution   channel  including  consumer
distributors,  electronic  retail stores and the ability to  effectively  handle
phone and Internet orders. Although the Company believes that the consumer video
market will continue to develop for products  which offer  consumers the ability
to edit home videos, there can be no assurance that this market will continue to
develop, or that the Company can successfully  compete in this market. There can
also be no  assurance  that the  Company  will be able to  compete  successfully
against current and future  competitors in the consumer video market, and to the
extent the Company is not successful with the development, introduction and sale
of products in this market segment,  the Company's  business,  operating results
and financial condition could be adversely affected.

         Risks  Associated  with Recent  Product  Introductions.  The Company is
critically  dependent  on  the  successful   introduction,   market  acceptance,
manufacture and sale of its recently  introduced  products to increase  revenues
and return to profitability. These products include the VideoDirector Studio 200
which is sold into the Consumer  market and which began  shipping in March 1997,
and  DVExtreme and  Lightning  which are sold into the Broadcast  market both of
which began shipping in June 1997. There can be no assurance that these products
will achieve  significant market acceptance,  and to the extent they do not, the
Company's   business,   operating  results  and  financial  condition  could  be
materially adversely affected.  In addition,  as is typical with any new product
introduction,  quality and reliability  problems may arise and any such problems
could  result  in  reduced  bookings,  manufacturing  rework  costs,  delays  in
collecting  accounts  receivable,   additional  service  warranty  costs  and  a
limitation on market acceptance of the product.

         Competition.   The  market  for  the   Company's   products  is  highly
competitive and is  characterized  by rapid  technological  change,  new product
development and obsolescence,  evolving industry standards and significant price
erosion  over  the  life  of  a  product.  The  Company  anticipates   increased
competition  in all three  markets into which  Pinnacle  products are sold:  the
Broadcast,  Desktop,  and Consumer video production markets. In particular,  the
consumer video production market in which  VideoDirector  Studio 200 competes is
an emerging  market and the  sources of  competition  are not yet well  defined.
There are  several  established  video  companies  that are  currently  offering
products or solutions that compete indirectly with  VideoDirector  Studio 200 by
providing some of the same features and video editing capabilities. In addition,
the Company  expects that existing  manufacturers  and new market  entrants will
develop new,  higher  performance,  lower cost consumer  video products that may
compete  directly  with  VideoDirector  Studio  200.  The Company  expects  that
competition  will  intensify  significantly  as the  market for  consumer  video
editing  products  develops.  The Company expects that potential  competition in
this market is likely to come from existing  video editing  companies,  software
application  companies,  or new entrants into the market.  Suppliers of existing
video editing equipment have the financial  resources and technical  know-how to
develop   products  for  the  consumer  video  market.   Suppliers  of  computer
application  software  also compete in the Consumer  editing  market.  Increased
competition could result in price reductions, reduced margins and loss of market
share,  all of  which  would  materially  and  adversely  affect  the  Company's
business,  operating results and financial condition.  There can be no assurance
that the Company will be able to compete successfully against current and future
competitors.

         Dependence on Key Personnel. The Company's success depends in part upon
the continued service of its senior management and key technical personnel, none
of whom is bound by an employment agreement

                                       -6-

<PAGE>

or the  subject  of key  man  life  insurance.  The  Company's  success  is also
dependent  upon its  ability  to  attract  and retain  qualified  technical  and
managerial  personnel.  Significant  competition  exists for such  personnel and
there can be no  assurance  that the  Company can retain its key  technical  and
managerial  employees or that it will be able to attract,  assimilate and retain
such  other  highly-qualified  technical  and  managerial  personnel  as  may be
required in the future.  There can be no assurance that employees will not leave
the employ of the Company and compete against the Company,  or that  contractors
will not perform  services for  competitors  of the  Company.  If the Company is
unable to retain key personnel,  its business,  operating  results and financial
condition could be adversely affected.

         Technological   Change  and   Obsolescence:   Risks   Associated   with
Development  and  Introduction  of  New  Products.   The  video  post-production
equipment  industry is characterized by rapidly  changing  technology,  evolving
industry standards and frequent new product  introductions.  The introduction of
products  embodying new technologies or the emergence of new industry  standards
can render existing  products  obsolete or  unmarketable.  The Company's  future
operating  results  will  depend  to a  considerable  extent on its  ability  to
continually  develop,  introduce and deliver new hardware and software  products
that  offer its  customers  additional  features  and  enhanced  performance  at
competitive  prices.  Inherent  in this  process  are a  number  of  risks.  The
development of new, technologically advanced products is a complex and uncertain
process requiring high levels of innovation, as well as accurate anticipation of
technological  market  trends.  Once a new  product  is  developed,  such as the
Companies  most  recently  introduced   products,   VideoDirector   Studio  200,
DVExtreme,  and  Lightning,  the  Company  must  rapidly  bring  it into  volume
production,   a  process  that  requires   accurate   forecasting   of  customer
requirements  and  the  attainment  of  acceptable   manufacturing   costs.  The
introduction of new or enhanced products also requires the Company to manage the
transition  from older,  displaced  products in order to minimize  disruption in
customer ordering patterns,  avoid excessive levels of older product inventories
and ensure that  adequate  supplies of new  products  can be  delivered  to meet
customer  demand.  For example,  the Company  expects that the  introduction  of
DVExtreme and Lightning  will result in a significant  decline in sales of Prizm
and Flashfile.  In addition,  since the Company's  products are based in part on
proprietary, internally-developed software, delays in software development could
delay  the  ability  of the  Company  to ship  new  products.  The  Company  has
experienced delays in the shipment of new products in the past, and these delays
adversely affected sales of existing products and results of operations.  Delays
in the  introduction or shipment of new or enhanced  products,  the inability of
the Company to timely  develop and introduce  such new products,  the failure of
such products to gain market acceptance or problems  associated with new product
transitions could adversely affect the Company's business, operating results and
financial condition, particularly on a quarterly basis.

         Dependence on Contract  Manufacturers and Single Source Suppliers.  The
Company   relies  on   manufacturing   subcontractors   to   manufacture   major
subassemblies  of the  Company's  products.  The Company  and its  manufacturing
subcontractors  are  dependent  upon single or limited  source  suppliers  for a
number of components and parts used in the Company's products, including certain
key integrated  circuits.  The Company's  strategy to rely on subcontractors for
major subassemblies and single source suppliers involves a number of significant
risks,  including  the loss of  control  over  the  manufacturing  process,  the
potential absence of adequate  capacity,  the unavailability of or interruptions
in access to certain  process  technologies  and reduced  control over  delivery
schedules,  manufacturing  yields,  quality  and  costs.  In the event  that any
significant  subcontractor  or single source  suppliers were to become unable or
unwilling to continue to manufacture  these  subassemblies  or provide  critical
components in required  volumes,  the Company would have to identify and qualify
acceptable replacements.  The process of qualifying manufacturing subcontractors
and suppliers could be lengthy and no assurance can be given that any additional
sources  would be  available  to the  Company on a timely  basis.  Any  extended
interruption in the future supply of or increase in the cost


                                       -7-

<PAGE>

of the subassemblies manufactured by third party subcontractors could materially
and adversely  affect the Company's  business,  operating  results and financial
condition.

         Dependence on Resellers; the Absence of Direct Sales Force. The Company
distributes its products primarily through a network of dealers,  OEMs and other
resellers.  Accordingly, the Company is dependent upon these resellers to assist
it in promoting market acceptance of the Broadcast,  Desktop, and Consumer video
products.  There can be no assurance that these dealers, OEMs and retailers will
devote the resources  necessary to provide effective sales and marketing support
to  the  Company.   The  Company's  dealers  and  retailers  are  generally  not
contractually  committed to make future purchases of the Company's  products and
therefore  could  discontinue  carrying  the  Company's  products  in favor of a
competitor's  product  or for any other  reason.  Because  the  Company  sells a
significant  portion  of its  products  through  dealers  and  retailers,  it is
difficult to ascertain  current  demand for  existing  products and  anticipated
demand for newly introduced products such as DVExtreme, Lightning and Studio 200
regardless  of the  level  of  dealer  inventory  for  the  Company's  products.
Moreover,  initial  orders for a new  product  may be caused by the  interest of
dealers to have the  latest  product on hand for  potential  future  sale to end
users.  As a  result,  initial  stocking  orders  for a  new  product,  such  as
DVExtreme, Lightning, and Studio 200 may not be indicative of long term end user
demand. In addition,  the Company is dependent upon the continued  viability and
financial  stability  of these  dealers and  retailers,  some of which are small
organizations with limited capital.  The Company believes that its future growth
and  success  will  continue  to depend in large part upon its dealer and retail
channels.  Accordingly,  if a significant number of its dealers and/or retailers
were to  experience  financial  difficulties,  or  otherwise  become  unable  or
unwilling to promote,  sell or pay for the  Company's  products,  the  Company's
results of operations could be adversely affected.

         Risks of Third Party Claims of Infringement. There has been substantial
industry litigation regarding patent,  trademark and other intellectual property
rights  involving  technology  companies.  In  the  future,  litigation  may  be
necessary to enforce any patents issued to the Company to protect trade secrets,
trademarks  and other  intellectual  property  rights owned by the  Company,  to
defend the Company against  claimed  infringement of the rights of others and to
determine the scope and validity of the proprietary  rights of others.  Any such
litigation  could be costly and a diversion  of  management's  attention,  which
could have material adverse effects on the Company's business, operating results
and financial condition.  Adverse  determination in such litigation could result
in the  loss  of the  Company's  proprietary  rights,  subject  the  Company  to
significant liabilities, require the Company to seek licenses from third parties
or prevent the Company from manufacturing or selling its products,  any of which
could  have a  material  adverse  effect on the  Company's  business,  operating
results and financial condition.

         International  Sales are  Subject  to a Number  of Risks.  Sales of the
Company's  products outside of North America  represented  approximately  39.7%,
38.7%  and 46.5% of the  Company's  net  sales in  fiscal  1997,  1996 and 1995,
respectively.  The Company  expects that  international  sales will  continue to
represent a significant  portion of its net sales,  particularly in light of the
acquisition  of  the  Digital  Video  Group  from  Miro  Computer  Products  AG.
International  sales and  operations  may also be  subject  to risks such as the
imposition of governmental controls,  export license requirements,  restrictions
on the export of critical technology, currency exchange fluctuations,  generally
longer receivable collection periods, political instability, trade restrictions,
changes  in  tariffs,   difficulties  in  staffing  and  managing  international
operations,  potential  insolvency of  international  dealers and  difficulty in
collecting  accounts  receivable.  There can be no assurance  that these factors
will not have an adverse effect on the Company's future international sales and,
consequently,  on  the  Company's  business,  operating  results  and  financial
condition.


                                       -8-

<PAGE>


                                 USE OF PROCEEDS


         The Company will not receive any  proceeds  from the sale of the Shares
by the Selling Shareholder.


                               SELLING SHAREHOLDER

         Miro  Computer  Products AG (the  "Selling  Shareholder")  acquired the
Shares in connection with the acquisition (the  "Acquisition") by the Company of
certain of the assets of the Selling Shareholder and certain of its subsidiaries
effective  August 31, 1997.  All of the Shares  offered hereby are being sold by
the Selling  Shareholder.  The Shares held by the Selling Shareholder  represent
approximately  3% of the outstanding  shares of the Company's Common Stock as of
September 11, 1997 and upon completion of this offering, the Selling Shareholder
will own none of the outstanding shares of Common Stock of Pinnacle.

         Pursuant to the terms of the Registration  Rights Agreement dated as of
August 29, 1997 (the "Registration  Rights Agreement"),  between the Company and
the Selling  Shareholder,  the Company undertook to use commercially  reasonable
efforts to register the Shares held by the Selling  Shareholder  within fourteen
days of the date of  issuance  of shares in  connection  with the closing of the
Acquisition.   The   Registration   Rights   Agreement  also  includes   certain
indemnification arrangements with the Selling Shareholder. Pursuant to the terms
of the  Registration  Rights  Agreement,  the Selling  Shareholder has agreed to
effect any sale of shares covered by the Registration  Rights Agreement  through
the offices of Hambrecht & Quist.


                              PLAN OF DISTRIBUTION

         The Shares may be sold from time to time by the Selling  Shareholder or
by pledgees, donees, transferees or other successors in interest. Such sales may
be made in any one or more transactions  (which may involve block  transactions)
on the Nasdaq  National  Market,  or any  exchange on which the Common Stock may
then be  listed,  in the  over-the-counter  market or  otherwise  in  negotiated
transactions  or a  combination  of such  methods  of  sale,  at  market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices  or at  negotiated  prices.  The  Selling  Shareholder  may  effect  such
transactions  by  selling  shares  to  or  through   broker-dealers,   and  such
broker-dealers  may sell the  Shares  as agent or may  purchase  such  Shares as
principal  and resell  them for their own account  pursuant to this  Prospectus.
Such  broker-dealers  may  receive  compensation  in the  form  of  underwriting
discounts,  concessions  or  commissions  from the  Selling  Shareholder  and/or
purchasers the Shares, for whom they may act as agent (which compensation may be
in excess of customary commissions).  In connection with such sales, the Selling
Shareholder  and any  participating  brokers  or  dealers  may be  deemed  to be
"underwriters" as defined in the Securities Act.

         The  Registration  Rights  Agreement  provides  that the  Company  will
indemnify  the  Selling  Shareholder  against  certain  liabilities,   including
liabilities under the Securities Act.

         The  Company  may  suspend  the use of this  Prospectus  for a discrete
period of time,  not exceeding 30 days, if, in the good faith  determination  of
its Board of  Directors,  a  development  has occurred or condition  exists as a
result  of which  the  Registration  Statement  or the  Prospectus  contains  or
incorporates by reference a material misstatement or omission, the correction of
which would require the premature disclosure of


                                       -9-

<PAGE>

confidential  information  that would,  in the good faith  determination  of the
Board of Directors, materially and adversely affect the Company. The Company may
not exercise  this delay right more than once in any  twelve-month  period.  The
Company  is  obligated  in the event of such  suspension  to use its  reasonable
efforts  to ensure  that the use of the  Prospectus  may be  resumed  as soon as
practicable.  This offering will terminate on the earliest of (a) two years from
the date of issuance  of the Shares or (b) the date on which all Shares  offered
hereby have been sold by the Selling  Shareholder or (c) such time as all of the
shares  can be sold by the  Selling  Shareholder  within  a  three-month  period
without  compliance  with the  registration  requirements  of the Securities Act
pursuant to Rule 144 thereunder.

         Any  securities  covered  by this  Prospectus  which  qualify  for sale
pursuant to Rule 144 under the Securities Act may be sold under that Rule rather
than pursuant to this Prospectus.

         There can be no assurance that the Selling Shareholder will sell any or
all of the shares of Common Stock offered by it hereunder.


                                     EXPERTS

         The consolidated financial statements and schedule of the Company as of
June 30, 1997 and 1996 and for each of the years in the three-year  period ended
June 30, 1997 have been  incorporated by reference in this Prospectus and in the
Registration  Statement of which this Prospectus  forms a part, in reliance upon
the reports of KPMG Peat Marwick LLP, independent  certified public accountants,
and are  incorporated by reference herein in reliance upon the authority of said
firm as experts in accounting and auditing.


                                  LEGAL MATTERS

         The  validity  of the shares of Common  Stock  offered  hereby has been
passed upon for the Company by Wilson  Sonsini  Goodrich & Rosati,  Professional
Corporation, Palo Alto, California.




                                      -10-

<PAGE>


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

         The following  table sets forth the costs and expenses,  payable by the
Company  in  connection  with the sale of Common  Stock  being  registered.  All
amounts are estimates except the SEC registration fee and Nasdaq National Market
listing fee.


                                                                  Amount to
                                                                   Be Paid
                                                                   -------
SEC registration fee ........................................      $ 1,500
Nasdaq National Market listing fee ..........................        4,072
Printing expenses ...........................................       10,000
Legal fees and expenses .....................................       10,000
Accounting fees and expenses ................................        7,500
Miscellaneous expenses ......................................        6,928
                                                                   -------
         Total ..............................................      $40,000
                                                                   =======

Item 15. Indemnification of Directors and Officers

         As permitted by Section  204(a) of the California  General  Corporation
Law, the Registrant's Articles of Incorporation  eliminate a director's personal
liability for monetary  damages to the Registrant and its  shareholders  arising
from a breach or alleged breach of the  director's  fiduciary  duty,  except for
liability  arising  under  Sections  310  and  316  of  the  California  General
Corporation Law or liability for (i) acts or omissions that involve  intentional
misconduct or knowing and culpable violation of law, (ii) acts or omissions that
a director  believes to be contrary to the best  interests of the  Registrant or
its  shareholders  or that  involve the absence of good faith on the part of the
director,  (iii) any  transaction  from  which a director  derived  an  improper
personal benefit,  (iv) acts or omissions that show a reckless disregard for the
director's duty to the Registrant or its  shareholders in circumstances in which
the director  was aware,  or should have been aware,  in the ordinary  course of
performing a director's duties, of a risk of serious injury to the Registrant or
its shareholders,  (v) acts or omissions that constitute an unexcused pattern of
inattention  that  amounts  to an  abdication  of  the  director's  duty  to the
Registrant  or  its  shareholders,  (vi)  interested  transactions  between  the
corporation  and a  director  in  which  a  director  has a  material  financial
interest, and (vii) liability for improper  distributions,  loans or guarantees.
This  provision  does  not  eliminate  the  directors'  duty  of  care,  and  in
appropriate  circumstances  equitable  remedies  such as an  injunction or other
forms of non-monetary relief would remain available under California law.

         Sections  204(a)  and 317 of the  California  General  Corporation  Law
authorize a corporation  to indemnify  its  directors,  officers,  employees and
other agents in terms  sufficiently broad to permit  indemnification  (including
reimbursement for expenses) under certain  circumstances for liabilities arising
under the Securities Act. The Registrant's  Articles of Incorporation and Bylaws
contain provisions  covering  indemnification to the maximum extent permitted by
the California  General  Corporation  Law of corporate  directors,  officers and
other agents against certain  liabilities  and expenses  incurred as a result of
proceedings  involving such persons in their  capacities as directors,  officers
employees or agents, including proceedings


                                      II-1

<PAGE>

under the  Securities  Act or the  Exchange  Act.  The Company has entered  into
Indemnification Agreements with its directors and executive officers.

         The  Registration  Rights Agreement dated as of August 29, 1997, by and
between the Registrant  and Miro Computer  Products AG provides that the Company
will  indemnify  the Selling  Shareholder  identified  therein  against  certain
liabilities, including liabilities under the Securities Act.

         At present,  there is no pending  litigation or proceeding  involving a
director,   officer,  employee  or  other  agent  of  the  Registrant  in  which
indemnification  is being sought,  nor is the Registrant aware of any threatened
litigation  that may  result in a claim  for  indemnification  by any  director,
officer, employee or other agent of the Registrant.

Item 16. Exhibits


 Exhibit No.     Description
 -----------     -----------

     4.2          Registration  Rights  Agreement  dated  August 29, 1997 by and
                  between the Registrant and Miro Computer Products AG.
         
     5.1          Opinion  of Wilson  Sonsini  Goodrich  & Rosati,  Professional
                  Corporation 

     23.1         Consent of KPMG Peat Marwick LLP, independent certified public
                  accountants.

     23.2         Consent of Counsel (included in Exhibit 5.1).

     24.1         Power of Attorney (see II-4).


Item 17. Undertakings

         The Registrant hereby undertakes:

         1.       To file,  during any period in which offers or sales are being
made,  a   post-effective   amendment  to  this   Registration Statement:

         a.       To include any prospectus  required by Section 10(a)(3) of the
                  Securities Act;

         b.       To reflect in the prospectus any facts or events arising after
                  the effective date of the Registration  Statement (or the most
                  recent post-effective  amendment thereof) which,  individually
                  or in the  aggregate,  represent a  fundamental  change in the
                  information set forth in the Registration Statement;

         c.       To include any material  information  with respect to the plan
                  of distribution  not previously  disclosed in the Registration
                  Statement or any material  change to such  information  in the
                  Registration Statement;

provided,  however,  that  paragraphs  (a) and (b)  above  do not  apply  if the
information  required  to be  included in a  post-effective  amendment  by those
paragraphs  is contained in periodic  reports  filed by the Company  pursuant to
Section 13 or Section 15(d) of the  Securities  Exchange Act of 1934, as amended
(the  "Exchange  Act") that are  incorporated  by reference in the  Registration
Statement.

         2.       That, for the purpose of determining  any liability  under the
Securities Act, each such  post-effective  amendment shall be deemed to be a new
registration statement relating to the securities offered


                                      II-2

<PAGE>

therein,  and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

         3.       To  remove  from  registration  by means  of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the offering.

         The undersigned  registrant  hereby undertakes that, for the purpose of
determining  any liability  under the Securities  Act of 1933, as amended,  each
filing of the  Registrant's  annual report  pursuant to Section 13(a) or Section
15(d) of the Exchange Act, (and,  where  applicable,  each filing of an employee
benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that
is incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

         The undersigned  registrant hereby undertakes to deliver or cause to be
delivered with the prospectus,  to each person to whom the prospectus is sent or
given,  the latest annual  report to security  holders that is  incorporated  by
reference  in  the  prospectus  and  furnished   pursuant  to  and  meeting  the
requirements  of Rule 14a-3 or Rule 14c-3 under the  Exchange  Act;  and,  where
interim  financial  information  required  to  be  presented  by  Article  3  of
Regulation S-X are not set forth in the prospectus,  to deliver,  or cause to be
delivered  to each person to whom the  prospectus  is sent or given,  the latest
quarterly  report  that  is  specifically   incorporated  by  reference  in  the
prospectus to provide such interim financial information.

         Insofar as indemnification for liabilities arising under the Securities
Act may be  permitted to  directors,  officers  and  controlling  persons of the
Registrant pursuant to the foregoing  provisions,  or otherwise,  the Registrant
has been advised that in the opinion of the Commission such  indemnification  is
against  public  policy as expressed in the  Securities  Act and is,  therefore,
unenforceable.  In the  event  that a claim  for  indemnification  against  such
liabilities  (other than the payment by the  Registrant of expenses  incurred or
paid by a  director,  officer or  controlling  person of the  Registrant  in the
successful  defense of any  action,  suit or  proceeding)  is  asserted  by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.

         The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining any liability under the Securities Act, the information omitted from
the form of Prospectus filed as part of this Registration  Statement in reliance
upon Rule 430A and  contained in a form of  prospectus  filed by the  Registrant
pursuant to Rule  424(b)(1) or (4), or 497(h) under the  Securities Act shall be
deemed to be part of this Registration  Statement as of the time it was declared
effective.


                                      II-3

<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the  requirements  for  filing  on  Form  S-3 and has  duly  caused  this
Registration Statement to be signed on its behalf by the undersigned,  thereunto
duly authorized,  in the City of Mountain View, State of California, on the 12th
day of September, 1997.

                            PINNACLE SYSTEMS, INC.


                            By: /s/  ARTHUR D. CHADWICK
                                ------------------------------------------------
                                     Arthur D. Chadwick
                                     Vice President, Finance and Administration,
                                     Chief Financial Officer


                                POWER OF ATTORNEY

         KNOW ALL  PERSONS  BY THESE  PRESENTS,  that  each  such  person  whose
signature appears below constitutes and appoints, jointly and severally, Mark L.
Sanders and Arthur D.  Chadwick  his  attorneys-in-fact,  each with the power of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration  Statement on Form S-3 (including  post-effective  amendments),  to
sign  any  registration   statement  for  the  same  offering  covered  by  this
Registration  Statement  that is to be  effective  upon filing  pursuant to Rule
462(b)  promulgated under the Securities Act of 1933, and to file the same, with
all exhibits  thereto and other  documents  in  connection  therewith,  with the
Securities and Exchange  Commission,  thereby  ratifying and confirming all that
each of said  attorneys-in-fact,  or his substitute or substitutions,  may do or
cause to be done by virtue hereof.
<TABLE>

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this  Registration  Statement  has been signed by the  following  persons in the
capacities and on the dates indicated:

<CAPTION>
       Signature                         Title                                      Date          
       ---------                         -----                                      ----          

<S>                         <C>                                               <C>      
  /s/ MARK L. SANDERS       President, Chief Executive Officer and            September 12, 1997     
- --------------------------  Director (Principal Executive Officer)
    Mark L. Sanders         

 /s/ ARTHUR D. CHADWICK     Vice President, Finance and                       September 12, 1997
- --------------------------  Administration and Chief Financial
     Arthur D. Chadwick     Officer (Principal Financial and
                            Accounting Officer)

    /s/ AJAY CHOPRA         Chairman of the Board, Vice President,            September 12, 1997
- --------------------------  Desk Products
      Ajay Chopra           

                            Director                                                            
- --------------------------  
       John Lewis           

 /s/ CHARLES J. VAUGHAN     Director                                          September 12, 1997
- --------------------------  
   Charles J. Vaughan       

  /s/ NYAL D. McMULLIN      Director                                          September 12, 1997
- --------------------------  
    Nyal D. McMullin        

 /s/ GLENN E. PENISTEN      Director                                          September 12, 1997
- --------------------------  
   Glenn E. Penisten        
</TABLE>

                                      II-4
<PAGE>

                                      EXHIBIT INDEX
                          


 Exhibit No.     Description
 -----------     -----------

     4.2          Registration  Rights  Agreement  dated  August 29, 1997 by and
                  between the Registrant and Miro Computer Products AG.

     5.1          Opinion  of Wilson  Sonsini  Goodrich  & Rosati,  Professional
                  Corporation 

     23.1         Consent of KPMG Peat Marwick LLP, independent certified public
                  accountants.

     23.2         Consent of Counsel (included in Exhibit 5.1).

     24.1         Power of Attorney (see II-4).




                                                                     EXHIBIT 4.2






                          REGISTRATION RIGHTS AGREEMENT


                                     Between


                             PINNACLE SYSTEMS, INC.


                                       and


                            MIRO COMPUTER PRODUCTS AG


                           Dated as of August 29, 1997



<PAGE>

                          REGISTRATION RIGHTS AGREEMENT


         THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made effective
as of August 31, 1997, between PINNACLE SYSTEMS,  INC., a California corporation
(the "Company"),  and MIRO COMPUTER  PRODUCTS AG, a corporation  organized under
the laws of Germany ("Miro").


                                    RECITALS

         A. Pursuant to the terms of the Asset  Purchase  Agreement  dated as of
August 29, 1997 (the "Purchase Agreement"),  by and among the Company,  Pinnacle
Systems GmbH, Pinnacle Systems C.V., Pinnacle Systems, Ltd. and Miro, Miro shall
acquire from the Company Two Hundred  Three  Thousand  Five  Hundred  Sixty-Five
(203,565) fully paid and nonassessable  shares of the Company's Common Stock, no
par value (the "Pinnacle Shares").

         B. The Purchase  Agreement  provides for the  execution and delivery of
this Agreement at the closing of the transactions contemplated thereby.

         NOW, THEREFORE,  in consideration of the  representations,  warranties,
covenants  and  conditions  herein and in the  Purchase  Agreement,  the parties
hereto hereby agree as follows:


                                    SECTION 1
                               REGISTRATION RIGHTS

         1.1      Shelf Registration.

                  (a) Initial Payment Shares.  As promptly as practicable and in
any event  within 14 days after the  issuance of the shares of  Pinnacle  Common
Stock in connection  with the Closing under the Purchase  Agreement and pursuant
to  Section  2.5(a)(i)  of the  Purchase  Agreement,  the  Company  shall file a
registration  statement  on Form S-3  under the  Securities  Act  covering  such
Pinnacle Shares.

                  (b) Earnout Payment Shares.  As promptly as practicable and in
any event within 14 days after the  issuance of shares of Pinnacle  Common Stock
in connection  with the Earnout Payment (as such term is defined in the Purchase
Agreement)  and pursuant to Section  2.5(a)(ii) of the Purchase  Agreement,  the
Company shall file a registration statement on Form S-3 under the Securities Act
covering such Pinnacle shares.

                                        1

<PAGE>

                  (c)  Obligations  of  the  Company.  In  connection  with  any
registration of Registrable Securities pursuant to this Section 1.1, the Company
shall:

                           (i) Use its commercially  reasonable efforts to cause
         such registration statement to become effective and to remain effective
         until the earlier of (A) the second anniversary of the date of issuance
         of  the  Pinnacle  Shares,  (B)  the  sale  of all of  such  shares  of
         Registrable  Securities  so  registered  or (C) such time as all of the
         Registrable  Securities  can be sold by  Holders  within a  three-month
         period without  compliance  with the  registration  requirements of the
         Securities Act pursuant to Rule 144 thereunder.

                           (ii)  Prepare  and file with the SEC such  amendments
         and supplements to such registration  statement and the prospectus (the
         "Prospectus") used in connection  therewith as may be necessary to make
         and to keep such  registration  statement  effective and to comply with
         the  provisions of the Securities Act with respect to the sale or other
         disposition  of  all  securities  proposed  to be  registered  in  such
         registration statement.

                           (iii)  Furnish  to the  participating  Holders or the
         underwriters  such number of copies of any  Prospectus  (including  any
         preliminary Prospectus and any amended or supplemented Prospectus),  in
         conformity with the  requirements of the Securities Act, as the Holders
         may reasonably  request in order to effect the offering and sale of the
         shares of Registrable Securities to be offered and sold, but only while
         the Company shall be required under the provisions  hereof to cause the
         registration statement to remain current.

                           (iv) Use its best  efforts to register or qualify the
         shares of Registrable Securities covered by such registration statement
         under  the   securities  or  Blue  Sky  laws  of  such  states  as  the
         participating  Holders  shall  reasonably  request,  maintain  any such
         registration  or  qualification  current  until the  earlier of (A) the
         second  anniversary of the date of this Agreement,  (B) the sale of all
         the shares of Registrable  Securities so registered or (C) such time as
         all of the  Registrable  Securities  can be sold by  Holders  within  a
         three-month   period   without   compliance   with   the   registration
         requirements  of the  Securities  Act pursuant to Rule 144  thereunder;
         provided,  however,  that the Company shall not be required to take any
         action that would subject it to the general  jurisdiction of the courts
         of any  jurisdiction  in which it is not so  subject or to qualify as a
         foreign  corporation  in any  jurisdiction  where the Company is not so
         qualified.

                           (v) Take all such other  action  either  necessary or
         desirable to permit the shares of Registrable  Securities  held by Miro
         (or its  permitted  assignees)  to be  registered  and  disposed  of in
         accordance with the method of disposition described herein.

                           (vi) Enter into and perform its obligations  under an
         underwriting  agreement, in usual and customary form, with the managing
         underwriter of such offering.  Each participating  Holder participating
         in such underwriting  shall also enter into and perform its obligations
         under any such agreement.


                                        2

<PAGE>

                           (vii)  Cause all  Registrable  Securities  registered
         pursuant to this Section 1.1 to be listed on The Nasdaq National Market
         or such other exchange as the Company's  Common Stock is then listed or
         quoted.

                  (d) Notwithstanding  anything else in this Section 1.1, if, at
any time during  which a Prospectus  is required to be  delivered in  connection
with the sale of  Registrable  Securities,  the Board of  Directors  of Pinnacle
determines in good faith that a development  has occurred or a condition  exists
as a result of which the  registration  statement or the Prospectus  contains or
incorporates by reference a material misstatement or omission, the correction of
which would require the premature  disclosure of confidential  information  that
would, in the good faith determination of the Board of Directors, materially and
adversely affect Pinnacle,  Pinnacle will immediately notify the Holders thereof
by telephone  and in writing.  Upon receipt of such  notification,  Holders will
immediately suspend all offers and sales of any Registrable  Securities pursuant
to the registration  statement for a period not to exceed 30 days.  Pinnacle may
not exercise this delay right more than once in any twelve (12) month period.

         1.2      Company Registration.

                  (a) If,  at any time or from  time to time  within  seven  (7)
years after the effective date of the first registration  statement for a public
offering of securities of the Company,  the Company shall  determine to register
any of its  securities,  whether  for  its own  account  in  connection  with an
offering of its  securities to the general public for cash on a form which would
permit the registration of Registrable Securities, other than (i) a registration
relating  solely to employee  benefit  plans on Form S-1 or S-8 or similar forms
which may be  promulgated in the future,  or (ii) a registration  on Form S-4 or
similar form which may be  promulgated  in the future  relating  solely to a SEC
Rule 145  transaction,  the Company will  promptly  give to the Holders  written
notice thereof and include in such registration  (and any related  qualification
under  Blue Sky  laws or other  compliance),  and in any  underwriting  involved
therein,  all of the  Registrable  Securities  specified in a written request or
requests,  made  within  thirty  (30)  business  days after  mailing or personal
delivery of such written  notice from the Company by any Holders,  except as set
forth in Section  7.4(b).  Such written request may specify all or a part of the
Holder's Registrable Securities.

                  (b) If the  registration  of which the Company gives notice is
for a registered public offering involving an underwriting, the Company shall so
advise the Holders as a part of the  written  notice  given  pursuant to Section
1.2(a).  In such event the right of any Holder to registration  pursuant to this
Section  1.2 shall be  conditioned  upon  such  Holder's  participating  in such
underwriting  and the inclusion of such Holder's  Registrable  Securities in the
underwriting to the extent provided herein.  All Holders proposing to distribute
their  securities  through such  underwriting  shall (together with the Company)
enter into an underwriting  agreement in the form negotiated by the Company with
the underwriter or underwriters  selected for such  underwriting by the Company.
Notwithstanding  any other  provision of this  Section  1.2, if the  underwriter
determines  that marketing  factors require a limitation of the number of shares
to be  underwritten,  the  underwriter  may  limit  the  number  of  Registrable
Securities to be included in such registration and underwriting to not less than
thirty percent (30%) of the securities  sought to be included  therein (based on
aggregate market values). The Company shall so


                                        3

<PAGE>

advise  all  Holders  whose   securities   would  otherwise  be  registered  and
underwritten pursuant hereto, and the number of Registrable  Securities that may
be included in the registration  and  underwriting  shall be allocated among all
Holders in proportion,  as nearly as practicable,  to the respective  amounts of
Registrable  Securities  entitled to inclusion in such registration held by such
Holders  at the  time  of  filing  the  registration  statement.  If any  Holder
disapproves  of the terms of any such  underwriting,  such  holder  may elect to
withdraw therefrom by written notice to the Company and the underwriter.

                  (c) In the case of each  registration  effected by the Company
pursuant to Section 1.2, the Company will keep each Holder participating therein
advised in  writing  as to the  initiation  of each  registration  and as to the
completion thereof. At its expense the Company will:

                           (i) Keep such registration  effective for a period of
one  hundred  twenty  (120)  days  or  until  the  Holders  have  completed  the
distribution described in the registration statement relating thereto, whichever
first occurs; and

                           (ii)  Furnish such number of  prospectuses  and other
documents  incident thereto as a Holder  participating in such registration from
time to time may reasonably request.

         1.3      Expenses.

                  (a)  All  expenses,  other  than  discounts  and  commissions,
incurred in connection with any registration pursuant to Section 1.1 and Section
1.2  shall  be  borne  by the  Company.  The  costs  and  expenses  of any  such
registration shall include, without limitation, the reasonable fees and expenses
of the Company's  counsel and its accountants,  the reasonable fees and expenses
of one counsel  for the Holders and all other costs and  expenses of the Company
incident to the preparation, printing and filing under the Securities Act of the
registration  statement and all amendments and supplements  thereto and the cost
of furnishing copies of each preliminary  prospectus,  each final prospectus and
each  amendment  or  supplement  thereto  to  underwriters,  dealers  and  other
purchasers of the securities so registered,  the costs and expenses  incurred in
connection with the  qualification  of such  securities so registered  under the
"blue sky" laws of various jurisdictions, the fees and expenses of the Company's
transfer agent and all other costs and expenses of complying with the provisions
of this Section 1 with respect to such registration (collectively, "Registration
Expenses").

                  (b) Excluding the  Registration  Expenses,  the  participating
Holders  shall pay all other  expenses  incurred on their behalf with respect to
any registration  pursuant to Section 1.1 or 1.2,  including any counsel for the
participating Holders (other than counsel as provided in Section 1.3(a)) and all
underwriting  discounts and selling  commissions with respect to the Registrable
Securities sold by them pursuant to such registration statement.

         1.4      Indemnification.

                  (a) To the extent permitted by law, the Company will indemnify
each  Holder  (excluding  Holders  who are then  directors  or  officers  of the
Company), each of their respective officers and


                                        4

<PAGE>

directors,  and each  person  controlling  such  person,  with  respect to which
registration,  qualification  or compliance  has been effected  pursuant to this
Section  1, and each  underwriter,  if any,  and each  person who  controls  any
underwriter,  against all claims, losses, damages and liabilities (or actions in
respect thereof) arising out of or based on (i) any untrue statement (or alleged
untrue  statement)  of a material  fact  contained in any  prospectus,  offering
circular  or other  document  (including  any  related  registration  statement,
notification or the like) incident to any such  registration,  qualification  or
compliance,  or (ii) any  omission  (or  alleged  omission)  to state  therein a
material fact required to be stated  therein or necessary to make the statements
therein not  misleading,  or (iii) any  violation  by the Company of any rule or
regulation  promulgated under the Securities Act or any state securities laws or
rule or regulation promulgated thereunder applicable to the Company and relating
to action or  inaction  required  of the  Company  in  connection  with any such
registration,  qualification or compliance, and will reimburse each such person,
each of its officers and  directors,  and each person  controlling  such person,
each such underwriter and each person who controls any such underwriter, for any
legal  and  any  other   expenses   reasonably   incurred  in  connection   with
investigating or defending any such claim,  loss,  damage,  liability or action,
provided that the Company will not be liable in any such case to the extent that
any such  claim,  loss,  damage or  liability  arises  out of or is based on any
untrue  statement or omission  based upon written  information  furnished to the
Company by an instrument  duly executed by such person or underwriter and stated
to be specifically for use therein.

                  (b) To the extent  permitted  by law,  each  Holder  will,  if
Registrable  Securities  held by or issuable to such person are  included in the
securities as to which such  registration,  qualification or compliance is being
effected,  indemnify the Company,  its legal counsel,  each of its directors and
officers who sign such registration statement, each underwriter,  if any, of the
Company's securities covered by such a registration  statement,  each person who
controls  the Company  within the meaning of the  Securities  Act and each other
such Holder, each of its officers and directors and each person controlling such
Holder,  against all claims,  losses,  damages  and  liabilities  (or actions in
respect thereof) arising out of or based on (i) any untrue statement (or alleged
untrue  statement)  of a  material  fact  contained  in  any  such  registration
statement, prospectus, offering circular or other document, or (ii) any omission
(or alleged  omission) to state  therein a material  fact  required to be stated
therein or necessary to make the  statements  therein not  misleading,  and will
reimburse  the Company,  such  Holders,  such  directors,  officers,  persons or
underwriters  for  any  legal  or any  other  expenses  reasonably  incurred  in
connection  with  investigating  or  defending  any such  claim,  loss,  damage,
liability or action,  in each case to the extent,  but only to the extent,  that
such untrue  statement  (or alleged  untrue  statement)  or omission (or alleged
omission) is made in such registration statement,  prospectus, offering circular
or other  document in reliance upon and in conformity  with written  information
furnished  to the  Company by an  instrument  duly  executed  by such Holder and
stated to be specifically for use therein.

                  (c) Each party entitled to indemnification  under this Section
1.4 (the "Indemnified Party") shall give notice to the party required to provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the  Indemnifying  Party to assume  the  defense of any such claim or any
litigation  resulting  therefrom,  provided  that  counsel for the  Indemnifying
Party,  who shall  conduct  the  defense  of such claim or  litigation,  if such
counsel is other than counsel named herein, shall be approved


                                        5

<PAGE>

by the Indemnified  Party (whose  approval shall not  unreasonably be withheld),
and the  Indemnified  Party may  participate  in such  defense  at such  party's
expense,  and provided further that the failure of any Indemnified Party to give
notice  as  provided  herein  shall,  if  such  failure  is  prejudicial  to the
Indemnifying  Party's  ability to defend such action,  relieve the  Indemnifying
Party of its obligations under this Section 1, but not of any obligation arising
apart from this  Section 1. No  Indemnifying  Party,  in the defense of any such
claim or litigation,  shall,  except with the consent of each Indemnified Party,
consent to entry of any  judgment  or enter into any  settlement  which does not
include as an unconditional term thereof the giving by the claimant or plaintiff
to such  Indemnified  Party of a release  from all  liability in respect to such
claim or  litigation.  If any  such  Indemnified  Party  shall  have  reasonably
concluded  that  there  may be one or  more  legal  defenses  available  to such
Indemnified  Party which are different from or additional to those  available to
the Indemnifying  Party, or that such claim or litigation involves or could have
an effect upon matters beyond the scope of the indemnity  agreement  provided in
this Section 1.5, the Indemnifying  Party shall not have the right to assume the
defense of such action on behalf of such Indemnified Party and such Indemnifying
Party shall reimburse such  Indemnified  Party and any person  controlling  such
Indemnified  Party for that  portion  of the fees and  expenses  of any  counsel
retained by the  Indemnified  Party which are reasonably  related to the matters
covered by the indemnity agreement provided in this Section 1.4.

         1.5 Information by Holder. The Holders whose securities are included in
any registration effected pursuant to this Section 1 shall furnish in writing to
the  Company  such  information  regarding  such  persons  and the  distribution
proposed  by such  persons as the Company may request in writing and as shall be
required  in  connection  with any  registration,  qualification  or  compliance
referred to in this Section 1. The  Company's  obligations  under this Section 1
are  conditioned  upon  compliance  by such persons with the  provisions of this
Section 1.5.

         1.6  Sale  without   Registration.   The  holder  of  each  certificate
representing   securities  of  the  Company  required  to  bear  the  legend  in
substantially  the form set forth in Section 6.14 of the Purchase  Agreement (or
any similar legend) by acceptance  thereof agrees to comply in all respects with
the  provisions  of this  Section  1.6.  Prior to any  proposed  transfer of any
Registrable  Securities  which shall not be registered under the Securities Act,
the holder  thereof  shall give written  notice to the Company of such  holder's
intention to effect such transfer,  accompanied  by: (a) such  information as is
reasonably  necessary  in order to  establish  that  such  transfer  may be made
without  registration  under the  Securities  Act; and (b) except for  transfers
proposed  to be made in  accordance  with SEC Rule 144 (as in effect at the date
hereof  and as  amended  from  time to time  thereafter)  or to any  constituent
partner of any Miro, at the expense of the Holder or transferee,  an unqualified
written  opinion of legal  counsel,  satisfactory  in form and  substance to the
Company, to the effect that such transfer may be made without registration under
the Securities  Act;  provided that nothing  contained in this Section 1.6 shall
relieve  the  Company  from  complying   with  any  request  for   registration,
qualification  or  compliance  made  pursuant  to the other  provisions  of this
Section 1.

         1.7 Transfer of Registration Rights. The rights to cause the Company to
register  securities  granted by the Company  under  Sections 1.1 and 1.2 may be
assigned  by any Miro to the  transferee  or  assignee  of not less  than 20% of
Registrable Securities (as adjusted for stock splits and the like) and


                                        6

<PAGE>

provided  that the Company is given written  notice of any such transfer  within
thirty (30) days of the date of said  transfer,  stating the name and address of
said transferee or assignee and identifying the securities with respect to which
such  registration  rights are being  assigned  and  provided  further  that the
transferee or assignee of such rights is not deemed by the Board of Directors of
the Company, in its reasonable  judgment,  to be a competitor of the Company and
provided  further  that the  transferee  or assignee  of such rights  assumes in
writing in a form  reasonably  acceptable to the Company the obligations of Miro
under this Agreement.

         1.8 Termination of Registration Rights. The registration rights granted
pursuant to this Section 1 shall  terminate as to any Holder at such time as all
Registrable  Securities  beneficially  owned by such Holder can be sold within a
given three-month period without  compliance with the registration  requirements
of the Securities Act pursuant to Rule 144 and a written  opinion to that effect
of legal  counsel  for the  Company  delivered  to such  Holder  which  shall be
reasonably  satisfactory in form and substance to legal counsel for such Holder.
Notwithstanding  the foregoing,  such registration  rights shall terminate seven
(7) years after the  effective  date of the first  registration  statement for a
public offering of securities of the Company.

         1.9 Sale of Registrable Securities.  The sale of Registrable Securities
of any Holder shall be effected through the offices of Hambrecht & Quist.


                                    SECTION 2
                                  MISCELLANEOUS

         2.1      Certain Definitions. As used in this Agreement:

                  (a) The term  "beneficially  owned"  refers to the  meaning of
such  terms as  provided  in Rule  13d-3  promulgated  under the  Exchange  Act.
References to ownership of Voting Stock hereunder mean beneficial ownership.

                  (b) The term "Exchange Act" means the Securities  Exchange Act
of  1934,  as  amended,  or any  similar  federal  statute  and  the  rules  and
regulations of the SEC thereunder,  all as the same shall be in effect from time
to time.

                  (c) The  term  "person"  shall  mean any  person,  individual,
corporation,   partnership,   trust  or  other  nongovernmental  entity  or  any
governmental agency, court,  authority or other body (whether foreign,  federal,
state, local or otherwise).

                  (d)  The  term  "Holder"  means  Miro  and any  transferee  of
Registrable Securities pursuant to Section 1.8 of this Agreement,  provided that
any such  person  shall  cease to be a Holder at such  time as the  registration
rights to which such person is entitled hereunder  terminate pursuant to Section
1.10.

                                        7

<PAGE>

                  (e) The  terms  "register,"  "registered"  and  "registration"
refer  to a  registration  effected  by  preparing  and  filing  a  registration
statement in compliance with the Securities Act, and the declaration or ordering
by the SEC of the effectiveness of such registration statement.

                  (f) The term  "Registrable  Securities" means (i) the Pinnacle
Shares and (ii) any Common Stock of the Company issued by the Company to Miro in
respect  of  the  Pinnacle   Shares  upon  any  stock  split,   stock  dividend,
recapitalization,  or similar event; provided, that if, upon any stock dividend,
recapitalization  or similar event, the Company issues  securities which are not
immediately  convertible  into Common Stock, the term  "Registrable  Securities"
shall also include such securities.

                  (g) The term  "Securities  Act"  means the  Securities  Act of
1933, as amended,  or any similar  federal statute and the rules and regulations
of the SEC thereunder, all as the same shall be in effect at the time.

                  (h)  The  term  "SEC"  means  the   Securities   and  Exchange
Commission or any other federal agency at the time  administering the Securities
Act.

         2.2      Governing  Law.  This  Agreement  shall  be  governed  in  all
respects by the laws of the State of California as applied to contracts  entered
into solely  between  residents of, and to be performed  entirely  within,  such
state.

         2.3      Successors and Assigns.  This Agreement  shall be binding upon
and shall  inure to the  benefit  of the  parties  hereto  and their  respective
successors  and assigns.  This  Agreement may not be assigned by a party without
the prior written consent of the other party. This Agreement is not intended and
shall not be  construed  to create any rights or remedies  in any parties  other
than Miro and the Company and no person  shall  assert any rights as third party
beneficiary hereunder.

         2.4      Entire  Agreement;  Amendment.  This  Agreement  contains  the
entire  understanding  and  agreement  between  the  parties  with regard to the
subject  matter  hereof and  thereof and  supersedes  all prior  agreements  and
understandings among the parties relating to the subject matter hereof.  Neither
this  Agreement  nor any term  hereof  may be  amended,  waived,  discharged  or
terminated other than by a written  instrument  signed by the party against whom
enforcement of any such amendment, waiver, discharge or termination is sought.

         2.5      Notices  and  Dates.  All  notices  or  other   communications
required or permitted  under this Agreement shall be made in the manner provided
in Section 10.1 of the Purchase  Agreement.  In the event that any date provided
for in this Agreement  falls on a Saturday,  Sunday or legal holiday,  such date
shall be deemed extended to the next business day.

         2.6      Language   Interpretation.   In  the  interpretation  of  this
Agreement,  unless the  context  otherwise  requires,  (i) words  importing  the
singular  shall be  deemed to import  the  plural  and vice  versa,  (ii)  words
denoting  gender shall  include all genders,  (iii)  references to persons shall
include  corporations  or other entities and vice versa,  and (iv) references to
parties, sections, schedules, paragraphs and


                                        8

<PAGE>

exhibits shall mean the parties, sections, schedules, paragraphs and exhibits of
and to this Agreement, unless otherwise indicated by the context.

         2.7      Table of Contents;  Titles;  Headings.  The Table of Contents,
titles and headings to Sections herein are inserted for convenience of reference
only  and  are  not  intended  to be a  part  of or to  affect  the  meaning  or
interpretation of this Agreement.

         2.8      Counterparts.  This  Agreement  may be executed in one or more
counterparts,  all of which shall be considered one and the same agreement,  and
shall become a binding  agreement when one or more counterparts have been signed
by each party and delivered to the other party.

         2.9      Severability.  If any  provision of this  Agreement or portion
thereof is held by a court of  competent  jurisdiction  to be  invalid,  void or
unenforceable,   the   remainder  of  the  terms,   provisions,   covenants  and
restrictions  of this Agreement  shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

        IN WITNESS WHEREOF,  the parties hereto have caused this Agreement to be
executed by their respective authorized officers as of the date aforesaid.


"COMPANY"            PINNACLE SYSTEMS, INC.,
                     a California corporation


                     By:     /S/ ARTHUR D. CHADWICK
                            --------------------------------------------------

                     Name:     Arthur D. Chadwick
                            --------------------------------------------------

                     Title: Vice President, Finance and Administration and CFO
                            --------------------------------------------------



"MIRO"               MIRO COMPUTER PRODUCTS AG
                     a corporation organized under the laws
                     of Germany


                     By:    /S/ G. BLINN
                            --------------------------------------------------

                     Name:   G. Blinn
                            --------------------------------------------------

                     Title:   CFO
                            --------------------------------------------------







                                                                     EXHIBIT 5.1

                [LETTERHEAD OF WILSON SONSINI GOODRICH & ROSATI]


                               September 12, 1997


Pinnacle Systems, Inc.
280 North Bernardo Avenue
Mountain View, California 94043

         RE:  Pinnacle Systems, Inc.; Registration Statement on Form S-3

Ladies and Gentlemen:

         We have examined the Registration  Statement on Form S-3 to be filed by
you with the  Securities  and Exchange  Commission  on  September  12, 1997 (the
"Registration  Statement"),  in  connection  with  the  registration  under  the
Securities Act of 1933, as amended,  of 203,565 shares of your Common Stock,  no
par value (the  "Shares"),  all of which are authorized and have been previously
issued  to  the  Selling  Shareholder  named  therein  in  connection  with  the
acquisition  by the Company of certain of the assets and  assumption  of certain
liabilities of the Selling Shareholder and certain wholly-owned  subsidiaries of
the Selling Shareholder. The Shares are to be offered by the Selling Shareholder
for sale to the  public as  described  in the  Registration  Statement.  As your
counsel in connection  with this  transaction,  we have examined the proceedings
taken and proposed to be taken in connection with the sale of the Shares.

         It is our opinion that, upon completion of the proceedings  being taken
or contemplated to be taken prior to the  registration of the Shares,  including
such proceedings to be carried out in accordance with the securities laws of the
various states, where required,  the Shares, when sold in the manner referred to
in the Registration  Statement,  will be legally and validly issued,  fully paid
and nonassessable.

         We consent to the use of this opinion as an exhibit to the Registration
Statement,  and further consent to the use of our name wherever appearing in the
Registration  Statement,  including the Prospectus  constituting a part thereof,
and any amendment thereto.

                                    Very truly yours,

                                    /s/  WILSON, SONSINI, GOODRICH & ROSATI

                                    WILSON SONSINI GOODRICH & ROSATI
                                    Professional Corporation






                                                                    EXHIBIT 23.1



The Board of Directors
Pinnacle Systems, Inc.:


         We consent to the use of our reports  incorporated  herein by reference
and to the reference to our firm under the heading "Experts" in the prospectus.


                                                   /s/ KPMG Peat Marwick LLP


Palo Alto, California
September 12, 1997





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