Sakya has released a new version of his MP3 player for PSP.

Changes:

-Added: in the file browser you can activate USB (press SELECT)
-Fixed: display didn’t turn on (if turned off with START) when playlist or directory finish.
-Fixed: bug if you’re using mp3s without ID3 (or only ID3v2). –> Error opening file
-Fixed: shuffle. Now pressing L will go back to previous track

http://sakya.altervista.org/new/index.php?mod=none_lightmp3