Since the last few days, ive started getting a strange TRT graph in cd-dvd speed. The drives starts reading the discs then it suddenly dips down and continues properly from there. this happens with ALL the discs that i have, even with the ones that gave a normal TRT graph, only a week ago. Since it happens in all the discs, i feel that the problem is with the drive rather than the discs. I’ve posted a graph from one of the discs below. The dip in graph occurs at the SAME position for all the discs.
My DVD Burner is SONY DRU-820A, Firmware 1.0c