opaqueice Wrote: > EAC reads and re-reads the CD, trying to get a result which is correct. > I assume it uses the intrinsic error correction built into the CD > format (CIRC) to determine when or if it gets a correct reading. Sort of. The CIRC error correction is applied within the CD drive's firmware. Only if that fails does EAC think there is an error. EAC itself doesn't have access to the CIRC data. How it figures out there is an error depends on the CD drive's capability. Most modern drives can report that a uncorrected C2 error has occurred, so EAC can just use that as the trigger for its re-reads. Lots of older drives didn't have this capability, and in this case EAC uses the strategy of reading every sector twice, and if they don't match it assumes there's an error and starts re-reading.
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