ADIC Named as One of America's 100 Fastest Growing Companies by Fortune Magazine for Third Year.

Business Editors, High-Tech Writers

REDMOND, Wash.--(BUSINESS WIRE)--June 19, 2002

Advanced Digital Information Corporation (Nasdaq:ADIC) today announced that the Company has been included for the third year in a row in Fortune Magazine's list of the 100 Fastest Growing Companies in the United States.

The list, compiled by Zacks Investment Research, compares the year-2001 performance of all U.S. companies publicly held for at least three years with $50 million or more in revenue and market capitalization. ADIC(R), a leading supplier of Intelligent Storage(TM) systems used to store, access, manage, and protect data in computer networks, is ranked 11th in the 2001 results. Other technology companies joining ADIC in the Fortune top twenty include Network Appliance, Qlogic, and Siebel Systems.

"We believe that ADIC's third consecutive appearance on the Fortune fastest-growing companies list underscores the central role that data storage continues to play in contemporary organizations of all sizes," commented ADIC CEO Peter van Oppen. "Even though the economy is going through a period of uncertainty and retrenchment, the explosive growth of data remains an indisputable fact that tends to counter the industry-wide trend of reduced IT spending. While the IT industry as a whole has suffered large-scale reversals this year, ADIC 2002 revenues to date have declined less than 6%. ADIC is committed to expanding our already broad role in the data storage market by continuing to develop advanced, intelligent solutions that help network administrators manage and protect their digital assets more easily and more effectively. We believe this strategy will position us well when global economic conditions begin a more robust recovery."

ADIC is a technical and market leader in several data storage categories. The company's products include software that is core to new media applications, including digital broadcasting and rich media delivery over the Internet, and storage management solutions that automate data management for enterprise IT departments. ADIC recently became the world's largest supplier of automated tape systems used to protect data for open-system, client-server networks.

About ADIC

Advanced Digital Information Corporation (Nasdaq:ADIC) is a leading provider of Intelligent Storage(TM) solutions to the open systems marketplace. ADIC(R) 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.(a) The Company's storage management software and storage networking appliances provide IT managers innovative tools for storing, managing and protecting their most valuable digital assets. ADIC storage products are available through a worldwide sales force and a global network of resellers and OEMs, including Dell, Fujitsu-Siemens, Hewlett-Packard and IBM.

(a) IDC 2001 worldwide revenue and unit market share data for all automated systems using DLT, SDLT, LTO, 8mm or AIT drives.

This release contains forward-looking statements relating to the Company's future products and services and future operating results that are subject to risks and uncertainties that could cause actual results to differ materially from those projected. The words "expect", "anticipate", and similar expressions identify forward-looking statements, but their absence does not mean that the statement is not forward-looking. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Factors that could affect the Company's actual results include general economic trends, purchase deferrals by customers, technical competition or obsolescence, supply constraints, changes in market pricing and production problems. Reference is made to the Company's Quarterly Report on Form 10-Q for the quarter ended April 30, 2002 for a more detailed description of factors that could affect the Company's actual results. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this release. The Company undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

ADIC is a registered trademark 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