it seems rather odd...

but I have noticed that many MP3 songs on my HDD and CD are not sounding as good as they were when I downloaded them. Checked in with the AME, nope my hearing hasn't gone totally bad ("...What?")
I recently talked with a friend of mine about it, who claims the same. Has anybody else experience a decrease in their MP3 quality?
(The music industry is happy to read this I suppose)