Earlier quoted context omitted.
There’s a lengthy explanation in the wiki linked from the github page. But basically cd drives don’t give you a raw stream, and does stuff like error correction.
So the error are used to trip traditional tools like ddrescue like in the days of old?
One example mentioned was that drives generally don’t read the precise samples you ask for. https://web.archive.org/web/20160528213242/https://thomas.ap...