SDMI, as currently composed, would not allow the playing of existing MP3 files on SDMI-compliant players.
Some resolution may be arrived at, however, at the next SDMI meeting, Oct. 11-13, in Los Angeles.
But, according to SDMI's Chiariglione, the scale of copying allowed by the Internet and digital music changes everything.
It was ratified at a SDMI Plenary meeting in Los Angeles on Thursday.
"SDMI is about giving opportunities to sell music directly to customers, " Chiariglione said.
The SDMI claims that the public release of the information would put industry efforts to combat copyright piracy in jeopardy.
Since it was first announced in December 1998, SDMI, a body composed of more than 180 companies, has developed slowly.
Consumers will have the final word on that, deciding either that SDMI music works for them and or that it doesn't.
Such limits have raised concerns that SDMI will fundamentally alter consumer rights.
In the future, many, and possibly all, compact discs will be SDMI-compliant, meaning that each song will have a "watermark" embedded in it.
Chiariglione sees SDMI as opening new relationships between businesses and users.
The company is a founding member of the Secure Digital Music Initiative (SDMI), the recording industry's effort to develop an open, secure access system for digital music.
That SDMI's executive director and one of its member companies can have such different views of the technology's readiness underscores how difficult it is to find consensus on the subject.
At that meeting issues bound to be discussed include the Hack SDMI challenge and implementation of Phase 2 of SDMI, which will bar the playback of non-SDMI music files on SDMI-compliant devices.
The SDMI deal means you will see more digital music players on store shelves in time for Christmas, when the music industry hopes to start cashing in, at long last, on the Internet-music boom.
But now SDMI lawyers have stepped in with the threat of legal action to try to stop the group spreading information about the deficiencies of the technologies, some of which are already being used in commercial products.
This week the group, which includes lecturers and students from Princeton and Rice Universities and an employee from the Xerox Palo Alto Research Center, was intending to present a paper based around their SDMI challenge work to the Fourth International Information Hiding Workshop in Pittsburgh.
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