Greets all. I got a hold of a 1640 and have been pitting it against my 1620 for quality scanning purposes. The 1640 is having serious issues and I don't know why. All my test disks were burned with the 1620... IDE 80 wire with the 1640 as master and 1620 as slave.
The attached images are an example of the most radical difference I've gotten thus far but the 1640 ALWAYS gives worse results than my 1620 out of the 5 disks I've tested so far.
I've got a long process of elimination planned out. Going to try switching drive configurations. Burn some disks with the 1640 and then compare test results and burn some disks with a 115d and compare test results. Would the 1620 favor it's own burns? It could be a number of things I suppose.
The 1640 has to constantly slow down to read DL's... I'm thinking it's probably hardware related. Dunno tho. I can post some TRT's if need be. They look like what you would expect from looking at the quality scan for the 1640 below. Really bad....
Any comments as to what might be happening? Thanks all.