[sixdsix]

I would try burning another game. For some reason, Jet Grind Radio, is very problematic.

The first time I burned it, it worked great. And after a few months it wouldn't load completley. The next one I burnt, would load maybe 50% of the time.

Keep trying to load the game to see if it ever boots completley. If not, try re-burning at 4x on a better media.

I usually burn at 8x on cheapies, and tried burning it at 4x with silver/silver and has worked fine since...