In the iTunes" Import Settings" menu, have you checked "Use error correction when reading CDs"?
Also, when you playback the suspected erroneous files, do the same errors occur if you play the files several times? In other words, are you certain it's the ripped files, and not a problem with something else in your playback chain...like the iPod, or the Wadia 170i, or the PB designs DAC?
I have heard playback errors in two of the three iPods I have owned, yet the original ripped files on my Mac's hard drive do not exhibit the same errors.
Also, when you playback the suspected erroneous files, do the same errors occur if you play the files several times? In other words, are you certain it's the ripped files, and not a problem with something else in your playback chain...like the iPod, or the Wadia 170i, or the PB designs DAC?
I have heard playback errors in two of the three iPods I have owned, yet the original ripped files on my Mac's hard drive do not exhibit the same errors.