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Technology Stocks : e.Digital Corporation(EDIG) - Embedded Digital Technology

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Mar 20 5:00 PM EST

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To: Kerry Sakolsky who wrote (1886)	1/26/1999 10:12:00 AM
From: Walter Morton	Read Replies (3) of 18366

"...and Liquid Audio, an Internet audio compression and ENCRYPTION algorithm from the Redwood City, Calif., company of the same name." _____ The Players trying to get RIAA approval: MP3 is the most entrenched of several techniques for compressing or encrypting audio files for Internet audio players; MPEG-2 Advanced Audio Coding, which is being promoted by many consumer-electronics companies for satellite TV as well as CD-quality music; Perceptual Audio Coding (PAC), developed by Bell Labs (Lucent)and currently proposed as a U.S. digital radio standard; "a2b" music services operated by AT&T; Liquid Audio, an Internet audio compression AND encryption algorithm from the Redwood City, Calif., company of the same name; Nippon Telegraph and Telephone's Twin VQ compression technology (transform-domain weighted interleave vector quantization) to compress digital music files. _____ What is RIAA? RIAA: Recording Industry Association of America and the world's FIVE major recording companies that created the Secure Digital Music Initiative (SDMI). _____ RIAA Approval ??? "... the group plans to have its first meeting in February (1999) and to prepare a specification in time for SDMI-certified products to ship in fall 1999." I don't believe that any method will be approved by the RIAA or SDMI-certified until they meet in February. techweb.com The word encryption is used in the description to Liquid Audio. I believe this word is being used loosely and means watermark. I believe that that is also the case with Lucent and EDIG. However, I could be wrong and they both could have an encryption algorithm that is more than just a watermark. As you may recall, PAC was not introduced in October with a watermark capability. We first heard about Lucent's attempts to include watermarks when EDIG mentioned that they were working with Lucent in December. In October PAC was a work in progress. A very good work in progress, but still a work in progress. And as of December watermarking was a work in progress for Lucent and EDIG. Today Liquid Audio has a working encryption algorithm and MP3 has "compression scheme for which 5 million to 10 million audio players have already been downloaded from the Web."

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