Was traced to a few areas. The failing drive was among them but owners seem to be far too reluctant to change or swap a drive for a test run.
Other causes are cd/dvd drive emulators to other malware.
my nec dvd nd-3520a thinks after burning a blank dvd it is a cd drive and will not play the burned dvd or any other dvd's,but after a while or after restart it works again. i have tried nero and ashampoo burning software with the same result. using windows xp.
any help welcome