Yeah, it looks like there was a hotfix offered at one time -- possibly not effective, which has been removed.
I don't know what to tell you -- except see if you can get a response from Nvidia.
Since the problem involves a DVD drive, these issues often relate to burning software drivers -- I would try removing any installed burning software and testing to see if it is resolved.
Also you can try a "clean boot" which might be an alternative test.
http://support.microsoft.com/kb/929135 << written for Vista, but applies equally well to XP