MP3 to what?

[Thorham]

What you should have done: rip the original cd to 16 bit wav, burn a new cd using the wav-files. Skip the conversion to mp3. Or make a direct 1:1 copy of the original cd. The end result will be the same in both cases.

Or use an audio CD file system

[Thorham]

Hmm. I doubt there would be much human perceivable difference once 16bit is converted to 8 bit be it from CDA or MP3. Especially if the MP3s were variable bit or 256bit+.  8 Bit is 'gonna be the lowest common denominator.

Indeed, but why bother converting anything if you can play the CD using an audio CD file system and something like Hippo Player?