Leonardo Chiariglione, founder of the Motion Pictures Experts Group (MPEG), has launched the Digital Media Project (DMP), an attempt to solve incompatibilities between different proprietary copy-proofing technologies.

The project specifically aims at resolving the conflicts between Apple, Microsoft and Sony's copy-protection technologies.

DMP has issued a call for standards that will let different music- and video-players play the same media, without the technological incompatibilities that exist between different formats now, reports ZDnet.

"Standards governing the interoperability of digital rights management technologies are essential," said DMP co-founder Thomas Curran.

Panasonic, BT, Telecom Italia, Mitsubishi and MPEG LA are all represented on DMP. However, Apple, Microsoft and Sony are not.