Ownership Submission

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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3235-0104

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

BARRETT BARBARA

2. Date of Event Requiring Statement (Month/Day/Year)
02/09/2004

3. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [DSS]

(Last)

(First)

(Middle)

1650 TECHNOLOGY DRIVE, SUITE 800

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
VP Human Resources

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

SAN JOSE, CA 95110

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
DSS Common Stock ⁽¹⁾	664	D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Option #D13980	04/01/1999⁽²⁾	04/27/2009	DSS Common Stock ⁽³⁾	600	$ 17.2361	D
Option #H13980	04/01/1999⁽²⁾	04/27/2009	DSS Common Stock ⁽³⁾	274	$ 6.896	D
Option #D16643	01/01/2000⁽⁴⁾	01/11/2010	DSS Common Stock ⁽³⁾	667	$ 8.6875	D
Option #D19519	01/01/2000⁽⁵⁾	01/11/2010	DSS Common Stock ⁽³⁾	100	$ 8.6875	D
Option #H16721	01/01/2000⁽⁴⁾	01/11/2010	DSS Common Stock ⁽³⁾	304	$ 8.7879	D
Option #H19519	01/01/2000⁽⁵⁾	01/11/2010	DSS Common Stock ⁽³⁾	46	$ 8.7879	D
Option #D25059	04/01/2000⁽⁶⁾	06/21/2010	DSS Common Stock ⁽³⁾	2,800	$ 9.5625	D
Option #H25059	04/01/2000⁽⁶⁾	06/21/2010	DSS Common Stock ⁽³⁾	1,275	$ 12.4953	D
Option #D30772	07/01/2001⁽⁶⁾	07/31/2011	DSS Common Stock ⁽³⁾	7,500	$ 9.7	D
Option #D33414	04/01/2002⁽⁶⁾	05/02/2012	DSS Common Stock ⁽³⁾	5,000	$ 6.7	D
Option #D32425	04/01/2002⁽⁶⁾	05/02/2012	DSS Common Stock ⁽³⁾	10,000	$ 6.7	D
Option #D33472	07/01/2002⁽⁶⁾	07/31/2012	DSS Common Stock ⁽³⁾	10,000	$ 2.08	D
Option #D33462	08/01/2002⁽⁶⁾	08/27/2012	DSS Common Stock ⁽³⁾	20,000	$ 2.98	D
Option #D34722	07/01/2003⁽⁴⁾	07/29/2008	DSS Common Stock ⁽³⁾	40,000	$ 2.95	D

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
BARRETT BARBARA 1650 TECHNOLOGY DRIVE, SUITE 800 SAN JOSE, CA 95110			VP Human Resources

Signatures

Barbara Barrett		02/17/2004
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Purchase made pursuant to a qualified 16(b) plan.
(2)	Vests 25% on first anniversary and monthly thereafter at a rate of 1/48th per month for remaining three years.
(3)	Right to buy granted under Rule 16b(3) plan.
(4)	Equal monthly vesting over 24 months.
(5)	Vests 50% on 1-1-01 and 50% on 1-1-02.
(6)	Equal monthly vesting over 48 months.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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