unusual image formats
 

I donwloaded tokyo xtreme racer and the archive contained three files:
IMAGE.sub
IMAGE.img
image.ccd

i burned the second one using discuggler and the game works, but the CD isn't self-bootable and there is no in-game music (I read a review on the game and it said there should be). How can I make this game work properly?

Get a different archive.

That's apparently not an official release since it would be a .CDI if it were.

Those files are "CloneCD" image files and they aren't bootable. Apparently they're also missing the audio tracks as well.