Please run the nero infotool & save the report.
Delete your serial/key and then post the log between
[ code ] [ /code ]
That'll stop everyone from blundering around in the dark.
Is this drive in an external USB case?
If so, update your USB system drivers, or better still, use firewire if it's available
USB can be a pain in the arse & the connection will drop devices for no apparent reason, aka: Disconnect issues.
Bad or unrecognised media will generally cause a "Sense Key 5: (insert extra gibberish here)" error.
You can update the drives firmware, but chances are, even if your drive recognises it, it's gonna be a coaster anyway, or it would have supported it already