I coverted a few files from 320 to 128 with nothing else working on the computer & they came out nice & clean. I didn't mess with the sound driver so the only difference is disk activity.
I'm off to convert a batch but, I learned a lesson that Pennames also encountered, I saved copies to a different folder before converting. I found that the original file in it's original format is gone after converting. The original becomes a wav file in temp storage & is huge. Maybe a conversion of the wav file back to its original format would work out OK but it seems like the file may be degraded by messing with it too much.
BTW, I've used Real Jukebox up to ver. 7 to play CD's & was happy with it. Once I got serious about storing music to disc I became dissatisfied. I've been real happy with MJ 8 & am not looking back.
flatom