B. Tehranchi is with Eastman Kodak Company, 460 Buffalo Road, Rochester, New York 14652-3816. D. G. Howe is with the Optical Sciences Center, University of Arizona, Tucson, Arizona 85721-0094.
Data reliability at the output of the error-correction code decoder
in a compact-disc system is influenced by the decoding strategy
employed by the decoder, as well as by the statistical distribution of
errors that contaminate the recorded data. Recovered-data
reliability estimates have been computed by use of error statistics
obtained from the measurement of errors that contaminate the actual
data stored on clean write-once and read-only-memory compact
discs. These estimates consist of probabilities that specify the
occurrence of residual errors in the data that appear at the output of
a compact-disc player’s cross-interleaved Reed–Solomon code
(CIRC) decoder. Data reliability estimates that apply to five
specific CIRC decoding strategies are reported.
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