Soundtrack Pro comes with 5,000 Apple loops, spanning dozens of genres. But sound designers can never have too many loops, especially when they're looking for a specific sound. So they become major collectors, scooping up everything from GarageBand Jam Packs to homemade field recordings. It's easy to amass tens of thousands of loops this way. Fortunately, Soundtrack Pro has excellent tools for organizing and searching audio files on your computer -- and they don't have to be loops.