For those of you who are looking for great audio sources for your games and are concerned (as you should be) with copyright infringement, consider checking out the following websites!

For great game music that is usable for free as long as you credit it within your game: http://incompetech.com/

For great free sound effects (which you should still credit): freesound.org

I have used incompetech for my podcasts and other projects. Great resource and Kevin MacLeod has a huge library. Pretty much music for any mood or scene

For my FNaF game, i got all the sounds from the FNaF wiki, and credited where credit was due.