I have not been able to find out how the Itunes "error correction" option works. There are more effective programs out there for bit perfect rips but I prefer the speed and ease of use of Itunes. Does anyone know how this error correction works and how effective it is at getting quality rips from scratched CDs?
How effective is Itunes “error correction” for CD imports
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Best Answer
Besides the raw audio data, CDs come with error correction codes, which, usually, are not read, assuming the data integrity. This leads to the typical poping or clicking sound heard when the CD has any defects, such as scratches, fingerprints or even manufacturing defects.
By turning on Use Error Correction, iTunes will read and process these error correcting codes along with the audio samples, correcting any found errors.
These error codes are called Reed-Solomon and this Wikipedia's extract explains how it works: