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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 (1881)	1/25/1999 3:14:00 PM
From: Walter Morton	Read Replies (1) of 18366

Watermark does not make CD's copy protected, only traceable. Digital Watermark (Definition) A pattern of bits embedded into a file used to identify the source of illegal copies. For example, if a digital watermark is placed into a master copy of an audio CD, then all copies of that CD are uniquely identified. If a licensee were to manufacture and distribute them in areas outside of its authorized territory, the watermark provides a trace. The watermark developer has to find creative ways of altering the file without disturbing it for the user. It is extremely difficult to embed a watermark within an ASCII file, which is just raw text. But it is somewhat easier to alter a few bits within digital audio samples without making a noticeable difference on playback. techweb.com This is the same thing that the Genuine Music group is doing. The advantage that they have is about 40 companies supporting the effort and supporting MP3 -- PAC's, Lucent's, Celestial's, and e.digital's competition.

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