Hi!!!!!!!
I'm a Sony DW-Q30A owner with a lot of Problems:
a) I can't read CDrom (don't recognize)
b) I can't play music CD's (don't recognize)
c) I can't play DVD movies via Power dvd (recognize and run the soft, but don't play)
d) I can't record anything (The NTI record program that comes with the machine show a "can't find any DVD recorder" warning)
BUT.....
e) I can read DVDrom
f) I can play DVD movies as a data
I was try to:
a) reinstall Windows
b) run EEPROM_Utility-3.6.2 ("can't find any DVD recorder")
c) run Flash_Utility ("can't find any DVD recorder")
c) run YYS6_WIN.EXE ("ASPI error" and something more i can't remember)
d) install the Sony DW-Q30A in another computer (the same problems)
The Sony DW-Q30A DVD recorder work well for a year aprox., recording and reading CD and DVD without problem. I can't explain why with precision, but all the problems begin at the same time.

Thank for your time and sorry for my English....

If you have the same problem on multiple computers I would suspect the drive is faulty.