I bought GT4 so it is a retail copy. It played fine but lately it just sits there and says reading disc. I have to eject and a couple of times and finally Ill hear it spin up and then the disc will show up so I can play it some times I have to put in a different disc in and let it spin up and let the disc pop up on the screen and eject and put GT4 in. Im thinking my laser is going out. This is my 3rd PS2 the 1st 2 stoped reading the blue bottom discs (a.k.a CDs). Its a version SPCH 30001 R. What do you guys think?