I have two dvd players both work ok on XP. but when running vista rc1/rc2 the liteon dvd rw would not work. microsoft never replied to feedback. only option buy new drive. thats one of the reasons not yet upgraded to vista.
Interesting first mention of a hardware bug like this that I have seen. All other problems with hardware seems to be down to the lack of drivers but CDs and DVDs are meant to use standard drivers built into windows so its rather weird that you are experiencing this sort of fault.