ADIC Announces Second Quarter Earnings Conference Call

    Business Editors/Technology Writers

    REDMOND, Wash.--(BUSINESS WIRE)--May 6, 2005--Advanced Digital Information Corporation (Nasdaq/NMS:ADIC) today announced it will release Second Quarter financial results after market close on Thursday, May 19, 2005. A conference call discussing earnings and outlook will follow at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time). A live webcast and replay of the call will be available at www.adic.com/ir.

    About ADIC

    Advanced Digital Information Corporation (Nasdaq:ADIC) is a leading provider of Intelligent Storage(TM) solutions to the open systems marketplace. ADIC is the world's largest supplier of automated tape systems using the drive technologies most often employed for backing up open system, client-server networks.(1) The Company's data management software, storage networking appliances, and disk-based backup and restore solutions provide IT managers innovative tools for storing, managing and protecting their most valuable digital assets in a variety of disk and tape environments. ADIC storage products are available through a worldwide sales force and a global network of resellers, OEMs and partnerships, including Apple, Cray, Dell, EMC, Fujitsu-Siemens, HP, IBM and Sun. Further information about ADIC is available at www.adic.com.

    (1) Market Share: Gartner Dataquest, Tape Automation Systems
    Market Shares, 2003, F. Yale, April 2004. ADIC, Pathlight,
    StorNext, and Scalar are registered trademarks, and
    Intelligent Storage is a trademark of Advanced Digital
    Information Corporation. All other trade or service marks
    mentioned in this document should be considered the property
    of their respective owners

--30--BRM/se*

CONTACT: ADIC Jon Gacek, 425-881-8004 or Stacie Timmermans, 425-881-8004 (Investor Relations)

KEYWORD: WASHINGTON INDUSTRY KEYWORD: HARDWARE SOFTWARE EARNINGS CONFERENCE CALLS SOURCE: Advanced Digital Information Corporation

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