A friend of mine recently moved from England back home to the USA. He owns a PAL xbox and has several PAL games not released in the USA. I have a modded xbox and am able to play several of them without any problems (as far as I can tell), however there are some that will not boot. For example I cannot get Bad Boys 2 or LMA Manager 2004 to boot. I was just wondering what may cause some to work fine yet others not at all. Oh, and YES these are the original discs. Thanks!