I've noticed that when I burn a dvd+r at 4x speed, my BenQ 1655 does the job very quitely, almost no noise, compared to the vacuum-like sound when I burn at 16x. I now burn all dvd's in 4x, following advices given to me in this wonderful forum. It produces better results, specially when one is not using the best media. My question is: does burning in lower speeds is better in regards to the life of the burner? does it make the burner cooler and subsequently less wear and tear, etc.?