A consortium of the world's largest computer and electronics companies yesterday (June 22) established ground rules for building compatible electronic devices that can share movies, music and other me

A consortium of the world's largest computer and electronics companies yesterday (June 22) established ground rules for building compatible electronic devices that can share movies, music and other media.

But the group quickly acknowledged that even greater challenges, including agreeing on how to protect digital content from theft, had to be overcome before consumers can create, manage and share content on any electronic device.

Many of the 145 global companies, including Sony Corp. and Microsoft Corp, are deeply wedded to proprietary ways of storing and processing digital media content. The group, however, found consensus in common and existing standards for audio, video and Internet communications.

Products that meet the specifications of the Digital Living Network Alliance will be awarded a logo that will let shoppers know that such a device will work with other certified products. The first compatible electronics could start appearing on store shelves by the end of this year.

Several challenges became apparent as participating executives gave a presentation to reporters in San Francisco. For one, the group acknowledged that they had yet to agree upon an anti-piracy technology for movies and music.

Group members also acknowledged that marketing and pricing missteps with early versions of home content sharing devices -- such as "digital media adapters" that send audio and video from a computer to a stereo or TV -- had put off many consumers.

"When consumers go to the store, they're not exactly sure what they're looking at," said Scott Smyers, a vice president at Sony Electronics and chairman of the group. That problem, he added, is not going away.

"The products are not getting less complicated. They're actually getting more complicated," he said.

--Reuters