5

THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FINANCIAL STATEMENTS OF QUANTUM CORPORATION FOR THE QUARTER ENDED SEPTEMBER 28, 1997

1000 6-MOS MAR-31-1998 SEP-28-1997 637,744 0 1,040,023 10,194 386,525 2,219,710 447,090 188,231 2,651,698 905,405 569,313 3,888 0 512,700 626,683 2,651,698 2,999,635 2,999,635 2,425,618 2,425,618 289,025 0 14,328 270,664 70,373 200,292 0 0 0 200,292 1.40 1.23