I downloaded the mp3 and haven't played it (aside from the bonus tracks) yet. I already ripped the cd to flac. 320 mp3s are right at the edge of where we can't discern quality differences, correct? I never listen to mp3 files. All my music is ripped flac or wav files. I've done a/b switching between amazon streaming and cd before and could definitely detect a difference, BUT... I did not level match so my test could have been skewed.