DataMirror Completes Acquisition of PointBase

TORONTO, CANADA -- (December 18, 2003) -- DataMirror (Nasdaq: DMCX; TSX: DMC) a leading provider of live, on demand data integration and protection solutions, today announced that it has completed its previously announced acquisition of PointBase, Inc. Under the terms of the agreement, DataMirror will pay approximately $3.5 million, and certain additional amounts may become payable contingent on future revenue or proceeds that may be received in connection with the acquired business. DataMirror will account for the acquisition under the purchase method.

PointBase is a leading provider of nano footprint, java based relational database and synchronization solutions designed to lead the industry's move toward software that delivers on the promise of platform independence. PointBase's proven trio of offerings -- PointBase Embedded, PointBase Micro and PointBase UniSync -- provide effective Java-based data storage, enterprise mobility and data synchronization with corporate databases.

PointBase technology is currently being used by leading software providers and companies including BEA, Checkmate International, Extensity, Leadscope, Macromedia, Raytheon and Sun Microsystems. With the implementation of PointBase technology, these companies have gained numerous business benefits including application mobility, reduced total cost of ownership, increased developer productivity, accelerated product release, increased customer satisfaction, and greater customer ROI.

Beyond enhancing service for the existing important PointBase customers, DataMirror will be focusing the PointBase technology to expand its existing wireless data capture solutions for barcode and RFID applications and also on new data synchronization solutions for the handheld marketplace.

About DataMirror
DataMirror (Nasdaq: DMCX; TSX: DMC ), a leading provider of live, on demand data integration and protection solutions, gives companies the power to integrate, monitor and protect their corporate data in real-time. DataMirror's comprehensive family of LiveBusiness™ solutions helps customers easily and cost-effectively capture, transform and flow data throughout the enterprise. DataMirror unlocks the experience of now™ by providing the instant data access, integration and availability companies require today across all computers in their business.

Over 1,750 companies have gone live with DataMirror software including Debenhams, GMAC Commercial Mortgage, the London Stock Exchange, OshKosh B'Gosh, Priority Health, Tiffany & Co., and Union Pacific Railroad. DataMirror is headquartered in Markham, Canada, and has offices around the globe. For more information, visit http://www.datamirror.com/.

Media and Financial Contacts:

For further information contact
Financial Contact:	Peter Cauley Chief Financial Officer DataMirror Corporation 905-415-0310 ext. 271 Fax: 905-415-0340
Media Contact:	Tracy Staniland Director of Marketing DataMirror Corporation 905-415-0310 ext. 274 Fax: 905-415-5196
Media Contact:	Stephen Greene Brodeur Worldwide 617-587-2872

"Safe Harbor" Statement under the United States Private Securities Litigation Reform Act of 1995:

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 plans, objectives, strategies and expectations. The words "anticipate", "believe", "estimate" and "expect" and similar expressions are intended to identify forward-looking statements. Numerous important 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: the difficulty of developing, marketing and selling new products successfully; variability of quarterly operating results; dependence upon on the continued growth and success of DataMirror's software products; competition; rapid technological change and new product introductions; 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, including 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. Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking statements prove incorrect, actual results may vary materially from those indicated in any forward-looking statements. The Company disclaims and does not assume any obligation to update these forward-looking statements.

Copyright 2003 DataMirror Corporation. All rights reserved. DataMirror, LiveBusiness 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.

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