PSP Media Center 0.5b

Currently plays MP3s, MODs and partially OGGs (they jitter).
Uses libMad, Tremor and adresd’s MOD code.

Place media files in /PSP/MUSIC but not in a subdir.
For MODs, only .mod will work. AHX support is in the works.

only 44khz files are currently supported, although others may partially work.

get it here

Update: Their Website
v0.82 - July 3 2005