Nolitan,
Another cause of inner groove distortion can be your motor. I have had a friend upgrade his motor and noticed an eliminatoin on IGD due to the upgrade. Speed stability issues are more apparent on the inner grooves.
Another cause of inner groove distortion can be your motor. I have had a friend upgrade his motor and noticed an eliminatoin on IGD due to the upgrade. Speed stability issues are more apparent on the inner grooves.