[Berzy]

i use primo useing data burn & iso methods and have never had a problem.

i have the updated version and the add-on for dvd burning that gives you that little px Helper window on the bottom.

failing that i would advise you make sure you dvd writer is compatible with primo. if it's not i believe that you and download drivers on their website that will add your dvd-r to primo.

failing that i'd say screw prassi and go with another program like the boyz mentioned above.