Exhibit 99.1
 
          This Proxy is solicited on behalf of the Board of Directors
 
                                [QUANTUM'S LOGO]
 
                        SPECIAL MEETING OF STOCKHOLDERS
                                  [    ], 1999
 
     The undersigned stockholder(s) of Quantum Corporation, a
     Delaware corporation, hereby acknowledge(s) receipt of the
     Notice of Special Meeting of Stockholders and Proxy Statement,
     each dated       , 1999, and hereby appoints Michael A. Brown
     and Richard L. Clemmer, and each of them, proxies and
     attorneys-in-fact, with full power to each of substitution, on
     behalf and in the name of the undersigned, to represent the
     undersigned at the Special Meeting of Stockholders of Quantum
     Corporation, to be held         , 1999 at 10:00 a.m., Pacific
     Standard Time, at Quantum Corporation, 500 McCarthy Boulevard,
     Milpitas, California 95035, and at any adjournment or
     adjournments thereof, and to vote (including cumulatively, if
     required) all shares of Common Stock which the undersigned
     would be entitles to vote if then and there personally
     present, on the matters set forth on the reverse side:
 
            (continued, and to be signed and dated on reverse side)
 
                                                 COMPANY #
                                                 CONTROL #
 
 
                    THERE ARE THREE WAYS TO VOTE YOUR PROXY
 
  Vote By Phone     Vote Via Internet
 [1-800-       ]      http://www.          Vote by Mail
Use any touch-      Use the Internet    Mark, sign and
tone telephone to   to vote your        date your proxy
vote your proxy     proxy 24 hours a    card and return
24 hours a day, 7   day, 7 days a       it in the
days a week. Have   week. Have your     postage-paid
your proxy card     proxy card proxy    envelope we have
in hand when you    card in hand when   provided.
call. You will be   you access the
prompted to enter   web site. You
your 3-digit        will be prompted
company number      to enter your 3-
and a 7-digit       digit company
control number,     number and a 7-
which are located   digit control
above, and then     number, Which are
follow the simple   located above, to
instructions.       create and
                    electronic
                    ballot.

                              Please detach here
 
Your                 THE DIRECTORS RECOMMEND A VOTE "FOR" ITEMS 1 AND 2
telephone    1. Proposal to adopt the amended and restated Certificate of
or              Incorporation
Internet
vote         [_] FOR                   [_] AGAINST                   [_] ABSTAIN
authorizes                                                                    
the named    2. Proposal to adopt amendments to the Quantum Corporation        
proxies to   Employee Stock Purchase Plan.                                     
vote your                                                                     
shares in    [_] FOR                   [_] AGAINST                   [_] ABSTAIN
the same                                                                      
manner as    and in their discretion, upon such other matters which may        
if you       properly come before the meeting or any adjournment or            
marked,      adjournments thereof.                                             
signed and                                                                    
returned     The shares represented by this proxy when properly executed will  
the proxy    be voted in the manner directed herein by the undersigned         
card. The    Stockholder(s). If no direction is made, this proxy will be voted 
deadline     FOR items 1 and 2. If any other matters properly come before the  
for          meeting, or if cumulative voting is required, the persons named in
telephone    this proxy will vote, in their discretion.                        
or                                                                             
Internet                                 Dated                                 
voting is                                                                     
     PST,                                Signature(s) of Stockholder(s) in Box 
on                                       PLEASE SIGN exactly as name appears at
          ,                              left. Joint owners should each sign.  
1999.                                    Executors, administrators, trustees,  
                                         etc. should so indicate when signing. 
                                         If signer is a corporation, please    
                                         sign full name by duly authorized     
                                         officer.                              
                                         Address change? Mark box [_] Indicate 
                                         change at left