5

THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FINANCIAL STATEMENTS OF QUANTUM CORPORATION.

1,000 12-MOS 12-MOS 12-MOS MAR-31-1999 MAR-31-1998 MAR-31-1997 APR-01-1998 APR-01-1997 APR-01-1996 MAR-31-1999 MAR-31-1998 MAR-31-1997 772,368 642,150 345,125 24,426 71,573 0 658,687 750,856 898,087 12,130 12,928 10,610 271,986 315,035 252,802 1,927,873 2,025,337 1,688,419 563,545 505,640 633,897 291,617 220,481 226,691 2,483,596 2,438,411 2,158,263 682,005 700,236 815,578 344,461 327,485 419,018 0 0 3,888 0 0 0 886,434 776,291 459,800 503,356 595,731 426,392 2,483,596 2,438,411 2,158,263 4,902,056 5,805,235 5,319,457 4,902,056 5,805,235 5,319,457 4,030,718 4,929,714 4,550,716 4,030,718 4,929,714 4,550,716 727,099 580,136 527,210 0 0 0 27,481 32,753 47,882 (185) 230,815 200,696 29,350 60,014 52,181 (29,535) 170,801 148,515 0 0 0 0 0 0 0 0 0 (29,535) 170,801 148,515 (0.18) 1.25 1.27 (0.18) 1.07 1.04