1. You are right. No drivers. None are required.
2. You didn't say if you tried with the software they supplied.
3. Try it with the IMAPI service disabled.
4. XP? SP2? All the drivers have been updated? (Tip: Microsoft doesn't do this!)
Bob
I have recently purchased a Sony DVD RW DW-U18A and haven't succesfully burned one DVD yet! The burn process fails at the last 10% or so (I can't remember the exact error message, but it entails 'failed').
I have tried burning a DVD (mixed data, film, audio) with the most recent Nero and Alcohol and yet it still fails.
I have tried looking for updated drivers for the DVDRW but they don't seem to exist...help!!!
I am running WinXP.

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