Thanks, Henry66 and ChrisF for the replay gain explanation. After I posted my question, I came across a reference to it on another forum, where I was seeking info on how to revive my frozen Sansa Clip+, which does nothing but display the SanDisk logo. I think it also has that option, or you can download an "app" to tag all your music with the replay gain values and the Sansa Clip+ will read those and adjust playback gain.

Alan

Alan Lofft,
Axiom Resident Expert (Retired)