Notice how you cannot browse for the next mp3 you are playing on the ps3.
This has been like this for about a year now. Before that with the press of the PS button you could browse to another mp3.
This sucks that the browse feature was taken out.
You can however still use the browse feature, but you need the dragonball z demo.
Start up the demo and you can change the music.
While your favorite mp3 is playing, you can hit the PS button to select another mp3.
Probably this just works for any game, demo that support mp3 playback.
when I get home I have to try this:
http://www.youtube.com/watch?v=IX6SwQsmZMA