If it's not RedBook aufio [CD Track] then it would be a format called PSF. It's more akin to a .mod file, if you're familiar with them.
Essentially, the difference would be that a .mod has embedded sound bytes which are used to make the music happen, where a .PSF file is stored in a directory with the sound library, or a .lib file. The lib file has all the sound effects [or instruments] stored within it [and possibly all the "songs", I don't remember all the details...]. So It's definitely NOT midi.
That said, it's not easy to rip most formats of game music. If a rip is available some where else in the [Hidden link.
Register to see links.], you're best off just dl'ing that. I'm pretty sure that's what everyone else is trying to say...
Bookmarks