Over the past few days, my slim PS2 just quit reading games very well. Model # is SCPH-70001 and is modded with the Crystal Chip (approx. a year ago). It just recently started to have problems reading discs inthe middle of a game. It recognizes burned games well, but just takes forever to load them, if it loads at all, sometimes it quits trying. Is my laser going? Would this have anything to do with the chip? I haven't tried playing DVD movies or CDs yet, but it plays original games perfect still.