Originally Posted by Barbarian887
Anyone recommend a good free program for making error-free copies of CD's?
Answer 1 is any of them.
Answer 2 is that an audio CD actually has 2 layers of data integrity.
(1) The error content of the data that is recorded on the disc with error detection and correction keys incorporated into it.
(2) The error content of the audio data itself, over and above any error detection or correction that is required due to errors in (1).
It turns out that the error rate in (1) is called BER or Bit Error Rate, and there may be a number of errors on an apparently good disc.
BER depends on the media and the recorder. Some recorders do better at this than others, but (2) is always low enough to be nearly or even vanishing. A few errors can be tolerated and are handled by means of error/detection concealment features of the player.
The error rate in (2) is usually very low and may even be zero.
Data CDs (CD ROMs) have what amounts to being yet another layer of error detection and recovery so that the computer files you store on them can be counted to generally be perfect.