There's two version of these. It's not even the in the "Battle/Dungeon collection" menu. Not to get confused with the rerincarnation soundtrack CD, these are different than ones in game. Where can I find it? Thanks in advance.

It's just "I'll Face Myself ~Reincarnation~" looped and slightly remixed to cut length down. There is no gamerip possible, so that's the closest option.

EDIT: Or you can download this: http://www.youtube.com/watch?v=cBbujX1ULFw