Exhibit 99.3

 

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

 

In connection with the Quarterly Report of Quantum Corporation (the “Company”) on Form 10-Q for the period ending June 30, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Michael A. Brown, as Chief Executive Officer of the Company, and Michael J. Lambert, as Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

 

(1)  The Report fully complies with the requirements of section 13(a) of the Securities Exchange Act of 1934; and

 

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

 

/s/    MICHAEL A. BROWN

                                                                                                         

Michael A. Brown

Chief Executive Officer

August 14, 2002

 

/s/    MICHAEL J. LAMBERT

                                                                                                         

Michael J. Lambert

Chief Financial Officer

August 14, 2002

 

This certification is made pursuant to § 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.