EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-15111, 333-34103, 333-61907, 333-93429, 333-37546 and 333-61082) of Advanced Digital Information Corporation of our report dated December 12, 2001 relating to the consolidated financial statements, which appears in this Annual Report on Form 10-K. PricewaterhouseCoopers LLP Seattle, Washington January 23, 2002