...But I've copied thousands of recordings from CD to hard drive - one generation down - and the difference is not obvious...
Tim
I'm quite confused by this statement; what is the theoretical difference? Because there are many listeners, including many on this forum, who would say that the hard drive copy can/will sound better than the CD, depending on playback hardware & software. More to the point, burning a CD from a hard drive WAV file and then ripping that CD will usually (again, depending a little on hardware & software) result in identical WAV files on the hard drive.