I have an odd problem with my PS2. I bought it from a used video game store, and being the dumbass that I am, never checked it out within the 30 day exchange period. PS2 Originals play perfectly fine (DVD discs, I have no CD games), and PSX games also work fine. When I put a DVD movie in however, nothing happens. When I go into the browser, it says "Reading Disc...," but no drive noise is apparent. I have tried putting in a PSX backup, and it gives me the "please insert a playstation 2 format disc" screen. As far as I know, there is no mod chip in the system, but there very well may be. Anyone have any suggestions?