I have been trying to tweak my Thompson DVD drive in my xbox to get some cheap media to work better. Like an idiot, I didn't get a reading of the original value of the pot's resistance (in ohms). Does anyone know what the default value is suppose to be set at? I would like to set it back, or try to at least. My original games still play, but now none of my backups will, even on good media. Anyone have any tips? I really do need the factory resistance though.