(already sifted through ~10 pages of searched threads and wanted to cry :()
heres the deal: i installed the drive (nec 3500) and it would not work under dma. nero would say "communication failure" when tyring to burn. after some googling i see that this is a somewhat common problem and that running it under pio mode will make it work.
not knowing what dma or pio meant at the time i put it on pio and it worked.... very slowly. so i used this for a while and it would take 30+ minutes to burn a dvd. after reaserching the diffrences between pio/dma i decide what the hell, its worth a shot to try it under dma mode again. i did, and it worked - burnt a full dvd at 16x in less than 8 minutes . the next day i tried to burn another disc, "communication failure."
i had a unused external usb 2 enclosure being unused so i put it in that. got some good burn times (around 8 minutes) but about a third of the time the burn progress just freezes and sits there.
finaly the puncline: the drive should work in dma but it doesnt. what should i do? what would make it reliable in the external? i would like to put it internal again and work under dma. would a firmware upgrade help and what is the liklyhood of it messing up and ruining the drive?
thanks in advanced!
(cliffnotes: didnt work in dma, switched to pio and burned slow, switched to dma and worked once, switched to usb2 external and it works sometimes)