Ok ive been haveing this problem alot recently and its pissing me off. I repair consoles for a game shop near my house and i allways get psps with broken umd drives and no matter how many and what kind of umd drive i put in them it wont work ive tried everything they seem completely normal never been opened or hacked and the mobo seems to just stop recognizeing umd drives. The thing that makes me so mad is that i spend the time opening and playing with diff umd drives in it then i dont fix it and i dont get paid. So i was wondering if anyone else comes acros this problem or maybe a fix?