Guilty Gear X Music

[mben]

I was just trying to fix the music for GGX and I noticed that some tracks are present as bin files named BGM23.bin etc. I was just wondering whether all tracks can be added like that or is they were somehow hacked to work in the game as they do not work in the sound test. The tracks on the disc as bin files are 23,24 ,27 ,29 and 30.

Alternatively is it safe to remove those files and add all tracks as CDDA.