It's been happening for a while but my ps2 isn't reading most of my games. What I mean is that it will load the game to the title screen but after a minute or two it will freeze. Also it is making a very loud noise, it sounds like scratching of the disc and if the disc was moving/skipping. I tried just cleaning the lens/laser but it did not help. Does this mean there is something wrong with the laser or the modchip?