The Windows api method uses the function call IDvdInfo2::GetDiscID http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c/...
This returns a unique 64bit ID for a DVD. Has anyone found out what exactly it does to create this 64bit ID. It would be nice to get linux DVD players to be able to use the same method.
Cheers James