i recently invested in a slim ps2, thinking, i know, i can play games on this AND i wont have to buy a dvd player. well, it's refusing to play one of my discs and for the life of me i cannot work out why, it's region 2, no scratches or anything and it works fine of everything else that i've tried it in. when i bung it in, the ps2 either says, 'disc could not be read' or just refuses to show it up in the browser. any suggestions?