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Rich Braun wrote in a message to Mike Bilow: RB> CDROM's clearly lack the redundant bits necessary to recover RB> data lost to physical damage. I'm baffled at why these RB> CDROM-mastering and -reading programs fail to put any fault RB> tolerance onto the media. I ought to be able to torment a RB> CD with a stapler, ball-point pen, power sander, and other RB> weapons of destruction and still be able to salvage all the RB> data. My guess is that with the track density of DVD's, RB> fault tolerance will be an absolute must. Actually, CDs have a great deal of redundant data for fault tolerance. However, it was originally assumed that they would be storing Red Book audio, not computer data. Even with computer data, about 20% of the raw data is there only to provide error correction, about 2.5 KB for each 2.0 KB sector. -- Mike - Subcription/unsubscription/info requests: send e-mail with "subscribe", "unsubscribe", or "info" on the first line of the message body to discuss-request at blu.org (Subject line is ignored).
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