I tried to use cdrdao under Linux(Fdeora Core 3) to back up an old music cd (lots of scratches) using
cdrdao read-cd --device ATA:1,0,0 --driver generic-mmc file.toc
I got following messages (the last three lines)
Found 20413 Q sub-channels with CRC errors.
Found disk catalogue number.
Reading of toc and track data finished successfully.
The words "CRC erros" make me very nervous. Was the backup really succefull or not? By "successful" I mean the file data.bin is exactly the image of my music CD without errors.
I already searched the web but did not find the answer. Thank you very much for your help.
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