[QUOTE=MetalFan5678;2705599]And what’s the purpose of having a speed selection at both the top and bottom in Opti Drive Control?[/QUOTE]
Sometimes You have to set the speed You want at the top, sometimes at the bottom. It depends on the drive You have.
I canÂ´t tell, why there are two options, maybe it is explained in the thread about OptiDriveControl.
It looks like Your PHILIPR04 are simply bad discs.