After it has booted.
1)Boot up gameshark 3, 2)turn off messiah 2, 3)Use gameshark 3 dvd region player?!!?
Or eg: 1)boot up mediaplayer, 2)turn off messiah 2, 3)play your divx movie) (i know it will play with chip on but this is for an experiment)
Maybe a switch or a 508 or someth9ing that can turn it off after it has booted a game?!?!