Some music will play won't as well?

[dbzlotrfan]

Does anyone else's PS3 play some music from your hardrive (internal PS3) on the XMB but in a game that supports custom music (Bejweled 2, Peggle, Dante's Inferno, Batman: Arkham City, et) those SAME tracks will not play?

This seems to be happening to me, for what ever reason I have a few thousand MP3'S on the system that will all play on the XMB but when I go into a game that supports custom music:

• Bejeweled 2
• Peggle
• Batman: Akrham City
• Dante's Inferno
• Sonic Generations (demo)
• Call of Duty: Classic
• Tetris

Some of the music on my PS3 won't play in a game that supports custom-music. Yet oddly I've found different downloads of some of that music (Diablo, Mario RPG, Super Mario World) that will oddly play in one of those above games. What is different between the two? Why would the new download of Diablo, Super Mario RPG or Super Mario World music play but the old one won't?