I have a v4 PS2 and I'm having some weird "disc read errors" out of it. The common disc read error comes from the blue discs, but mine is the other way around. It will read blue disc perfectly(even better than my v9) but when I try to play a silver disc it just won't happen. I've tried all the common ways to try to fix it like taping the disc, cleaning the laser numerous times, adjusting the white dial, and increasing the voltage to the laser. Nothing seems to work. Any solutions?