If you told NeroVision to "write to HD folder" then it creates a VIDEO_TS folder and the VOB/IFO/BUP files. You can burn them with Nero or Nero Express - just pick "DVD Video" and drag the files into the VIDEO_TS folder Nero automatically puts into the project.
Just use the normal Nero, not NeroVision!
Soon to be proud user of Mandrake 10 (again!). SuSE 9 sucks!