Using 1.02, I had problems to erase DVD+RW discs on it too. One 8x disc died, so I gave up on it. When it happened to a 4x, I took the disc to another drive, erased it there, and then it would erase on the 755 as well. Well, I'll keep an eye on that one.
What worries me more is this: My MCC004 burns seem to skip or stutter on my living room stand alone DVD/HD Recorder (sony). They only freeze/skip in a few (1-3) narrow regions and only for a few seconds. The regions seem spaced apart. The stutter is reproducible on that recorder (VERY helpfull). It does not occur during playback on the 755a.
Somehow I have the notion that this skipping occurs at locations where the 755A is interrupting its burn for the "sake of quality". As far as I know, this would be at the moments it reaches 8x, 10x, 12x and 14x.
My last burn at 16x was set to AS on and PoweRec (PR) off. It had one stutter at about 60%. The burn went up to 16x.
I need to kill that stutter! But my scans show nothing unusual about that disc. I just scanned the 2-3 GB region on "good accuracy" to see if I can spot something there, but max. PIE is a low 11 at 2.5 GB, which is actually a singular peak, the "noise level" is a PIE of 6.
I will check the stuttering discs in other standalone players and DVD drives to see if it is a special issue with my Sony.
To reduce coasters, I will next check the results when I burn at 8x with AS,PR off and then work my way back up from there.
Any other or different suggestions?