06-28-2009 10:30 AM
06-29-2009 01:14 AM
some discs due to the cheap dye they use, can produce problems in ageing drives, especially in slim drives, since the laser they use are not as powerful as the desktop version. As part of the laser age, the power output diminishes, which means they can no longer discern the surface features of burnt discs (especially the cheap one), resulting in the problem you have observed.
This is also why many game consoles laser have a shorter life span when they use copied games as opposed to the OEM discs.