Can I add a clip anytime? or should it be one time? -- kenski

If you've saved the .nvc file, you can open it up again with NeroVision and add in the new clip where you want it to appear, but then you must transcode the whole .nvc file (i.e. make a new .nrg file) and burn a new DVD--you can't just add your clip onto the end of the DVD, as you can with a DVD made on a standalone DVD recorder. So it's a good idea to think out your desired video(s) in advance.

Lenny