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To: Don Dorsey who wrote (5372)3/21/1998 12:11:00 PM
From: Synapsid  Read Replies (1) | Respond to of 8193
 
I'm still scratching my head about the use of PRML in a DVD drive.
CD-ROM drives don't use PRML. I can imagine PRML would allow a
higher data density, but the DVD standard obviously doesn't use/require PRML. Maybe the advantage is higher DVD speeds with
more margin for error in optical detection technology (i.e. easier/
cheaper to manufacture in volume)?



To: Don Dorsey who wrote (5372)3/21/1998 2:26:00 PM
From: DJBEINO  Read Replies (1) | Respond to of 8193
 
At the end of this month, Cirrus Logic Inc. (Fremont, Calif.) is expected to announce a DVD controller that incorporates PRML (partial-response, maximum-likelihood) technology.

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