I don't have an Xbox. Recently, I've started taking advantage of my high-speed internet by leeching huge games off BitTorrent. I've been setting my sights on PS2, Xbox, and PC games with good music, and for the most part I've been successful in most of my extractions.
The quality is good, as Ogg Vorbis is superior to MP3 in lower-bitrate quality, but copying and pasting songs together in a wave editor wouldn't be ideal... I've already ordered about 10 songs properly in my playlist...