lazarus: ~
$ find /mnt/music/ -type f | wc -l
2332

lazarus: ~
$ find /mnt/music/ -type f ! -iname "*.mp3" ! -iname "*.ogg" | wc -l
0

Rhythmbox 0.6.1 successfully loads almost my entire library, without errors (unfortunately, there was no indication why it missed 60 or so). Many thanks to Colin Walters and Bastien Nocera, who hacked on the mp3 metadata loading code. Now is the time on sprockets when we dance.