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At 07:53 AM 2004/11/08 -0500, you wrote: >I was referring to the uncorrectible error correction system in CD players. >Sorry if this was unclear from the context of my message. > >Steven Smolian I'm not sure that we have the specific language in the CD standards, but in the video world there is a distinction between error correction and error concealment The former is a deterministic process that totally recovers the data as written in spite of the loss of some of the bits on the medium. The latter is merely an attempt to hide an uncorrectable error. The data world doesn't allow concealment so it has an extra level of correction. Cheers, Richard