Sun Microsystems stepped into the fractious arena of digital copyright protection this week with plans for an open-source, royalty-free digital rights management (DRM) standard. The Open Media Commons initiative aims to address concerns that a growing number of incompatible download schemes might frustrate consumers and hold back growth in the download market.

To get the ball rolling, Sun is releasing its code from its Project DReaM (DRM/everywhere available) program under the open-source Common Development and Distribution License (CDDL). It's inviting other firms to join the initiative which involves the development of a device independent DRM standard - called DRM Opera - and user-based (as opposed to device-based) licensing.

Sun's initiative pushes into an arena already staked out by numerous players. Microsoft, Sony and Apple all have their own proprietary DRM technology while a consortium of telcos and handset makers are developing a DRM standard - called the Open Mobile Alliance (OMA) - for mobiles. Meanwhile a group called Coral, which includes record labels and technology firms, is striving to establish DRM interoperability standards. ®

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