Has anyone ever gotten any real performance upgrade when messing with the little white cog thing? I was messing with it this morning and found... When i turned it to the "front" of the cog it took 30 seconds to say Disk read error. When i went to the "end" of it , it took 80 seconds. After about 15 minutes i found a spot that took 20 seconds to detect an original Dvd, but now i can't find the place for my DVD-Rs to play, even tho they played before .