Hi there Durf, I am here to answer your question truthly.

In away such a program like nero could be downloaded for demo use, for recording use, and many other options that I might add from what I see I consider you to have such a
demo version of the program im guessing in order to burn a dvd in NeroVision Express 3 you must obtain the retail version of nero burning rom the DVD Video Plugin is included on the retail version if you must see for example here is a link
http://ww2.nero.com/enu/Plug_Ins.html read the DVD Video Plugin I suggest you buy a retail copy