Audio at even 128k can be virtually indistinguishable from CD if you do it right. The entire point of digital audio that it sounds close enough to the original for you to not be able to tell much if any difference. The technology digitally removes sounds that are above or below or too quiet at the time for you to be able to hear it. That's why they call it LOSSY because you lose info that you cant hear anyway. That makes the file size small and convenient to transport and its pretty damned close to the original to your ears.
Anyone who wants to test can either go to http
/mp3ornot.com/ and test your metal. Or do what I did. Rip a cd with LAME mp3 at 320k 44khz stereo (not joint stereo) high quality (if your ripper has that option) then rip it again at 128k 44khz stereo (again not joint stereo) high quality, and see if you can see any difference.
I suspect that most of the poor quality mp3s that are listed as 128k or above are actually songs that were ripped at 64k with windows media player and then up converted to the reported bitrate. I make that supposition because when I went to my physical for the Air Force they informed me I had exceptionally good hearing... and I cant hear too much of a difference in a proper 128k mp3 and a 320k mp3 and a cd.
The entire concept that we need another, more accurate, format is pure marketing drivel for RIAA supporters to try to get people to use a format that makes file sharing 100X tougher.