I often find when ripping with CDex from a back-up disc made with CloneCD that the last song will have a couple of digital errors. Sometimes other songs
throughout the disc will have errors.
Often the errors are unnoticeable. I'd say on 2 out of 5 discs, the last song DID have a noticealbe dropout of sound at the very end before the sound came back and the song ended.
Sometimes one or two songs are unrippable.
The process fails.
If I attempt an analog process with my CD-RW, I hear that old digital reverb error. I have to play these discs in a home stereo CD-player and port the problem songs to my sound card.
I know a CD-RW is much more exact than a home stereo CD-Player. I used the same old TDK 24/10/40x (the "x" is significant to the model) to read the original, burn the copy and rip from the copy.
The originals I backed-up from were flawless as far as I know.
CCD (CloneCD) reported no errors durring the disc copy.
Eye-balling the originals proved them to be free of dust and scratches. The originals were only days or weeks old.
I don't think CDex automatically does off-set correction as EAC does manually.
I've got to try EAC again.