As above. Both have HD7 lasers, one of which is brand new. I have noticed that the laser is not moving along the tracks. Could this be the cause of the ps2 not reading discs or a side effect? When the laser is pushed to the back of the track so it doesn't make contact with the disc, it makes no attempt to move. When the laser is in contact with the disc, it spins up quite quickly then makes a kind of scratching noise. What can be the problem as I am at my wits end.