DataMirror Announces Closure of Idion Bid.

Business Editors

DataMirror (Nasdaq: DMCX) (TSX: DMC), a leading provider of enterprise application integration and resiliency solutions, today announced the closure of it's take-over bid ("the bid") for Idion Technology Holdings Limited ("Idion") effective July 4, 2002.

When the bid was announced on March 18, 2002, DataMirror owned approximately 16.6% of Idion's outstanding ordinary ("common") shares acquired at an approximate cost of Cdn. $1,147,000. Over the course of the bid, the Company acquired 22.2% of Idion's outstanding common shares at an approximate cost of Cdn. $6,945,000 and currently holds 38.8% of Idion's outstanding common shares acquired at a cost of approximately Cdn. $8,092,000. The ownership of 1,119,000 or approximately 1% of the shares of Idion (the "Disputed Shares") which are included in this total are subject to a dispute between the Company and a broker acting on behalf of persons related to the CEO of Idion. The broker alleges that it did not accept the Company's offer in respect of the Disputed Shares and has instituted legal proceedings against the Company and certain other parties to prevent the settlement of the sale of the Disputed Shares to the Company.

About DataMirror

DataMirror (Nasdaq: DMCX)(TSE: DMC) delivers LiveBusiness(TM) software solutions that let customers integrate data in real-time across their enterprises. DataMirror's comprehensive product family unlocks the experience of now(TM) by providing the instant data access, integration and availability customers demand today across all computers in their business.

Over 1,600 companies use DataMirror to integrate their data. Real-time data drives all business. DataMirror is headquartered in Toronto, Canada, and has offices worldwide. DataMirror has been ranked in the Deloitte and Touche Fast 500 as one of the fastest growing technology companies in North America. For more information, call 1-800-362-5955 or visit the DataMirror web site at www.datamirror.com.

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Forward-looking statements in this press release, including statements regarding DataMirror Corporation's business which are not historical facts, are made pursuant to the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements of estimates, expectations, objectives and plans (financial and otherwise). The words "anticipate", "believe", "estimate", "expect" and similar expressions are intended to identify forward-looking statements. Numerous factors affect DataMirror's operating results and could cause DataMirror's actual results to differ materially from the results indicated by this press release or by any forward-looking statements made by, or on behalf of, DataMirror, and there can be no assurance that future results will meet expectations, estimates or projections. These factors include, but are not limited to, the following: variability of quarterly operating results; dependence upon the continued growth and success of DataMirror's software products; competition; the ability to develop, market, support and acquire new products in an environment of rapidly changing technology; dependence upon continued growth in the database and enterprise data integration markets; dependence upon relationships with complementary vendors and distribution channels; the ability to recruit and retain key personnel; risks of international operations, currency exchange rate fluctuations and global economic conditions; possible software errors or defects; possible infringement claims by third parties; and other factors discussed in the Company's Annual Information Form and other periodic filings with the United States Securities and Exchange Commission and other regulatory authorities.

Copyright 2002 DataMirror Corporation. All rights reserved. DataMirror, LiveAudit, LiveBusiness, iReflect, Transformation Server, iCluster and The experience of now are trademarks or registered trademarks of DataMirror Corporation. All other brand or product names are trademarks or registered trademarks of their respective companies.