Copy-protected digital audio compact disc, and method and system for producing same
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United States of America Patent
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Mar 23, 2010
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app pub date -
Aug 22, 2000
filing date -
Aug 23, 1999
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Abstract
A method for producing a copy-protected audio compact disc containing a plurality of symbols within error-correction codewords, representing audio data samples of an audio signal is provided. The method includes the steps of selecting at least one audio data sample of the audio signal (1415); locating the data symbols representing audio data sample (1420); overwriting symbols with erroneous symbols (1440); locating the error-correction codewords associated with the data symbols and disabling the error-correction of said error-correction codewords (1455).
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