Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM
We hereby consent to the
incorporation by reference in the Registration Statements on Form S-8 (Nos.
333-64350, 333-136912, 333-147621 and 333-161060) of Quantum Corporation of our
report dated June 11, 2010 relating to the financial statements, financial
statement schedule, and the effectiveness of internal control over
financial reporting, which appears in this Form 10-K.
/s/
PricewaterhouseCoopers LLP
Seattle, Washington
June 11, 2010