I just purchased a BenQ 1640. When I was burning a DVD with Sony’s DVDA3 I noticed the ‘access’ LED on the front panel of the BenQ was flashing a lot slower than I was used to seeing on the Plextor 716A. On the BenQ I am not sure what the LED indicates beyond activity. I checked the burn time it was the same length as the Plextor. To try and get a better understanding of what was going on I tried the same burn with Nero and now the LED on the BenQ was flashing significantly faster and the total burn time was exactly the same. I then tried a DVDA3 burn again and this time the BenQ LED was flashing as fast as it was with Nero. My ‘guess’ is Nero must have turned on a flag in the BenQ to call for data at a higher buffer level. Since the total burn time remained the same I assume the buffer never ran to zero in the lower buffer data level case. I also tried CopyToDVD with the same results. The BenQ firmware level is BSKB. I don’t believe I have a defective drive. Can someone shed some light? Thanks.