Hi
In VP 2.41 and assuming your edited video *is 16:9 format then save to your PC with the preset at either HD 720 or HD 1080. (It's the same AR)
Click the Encoder Option button and select MPEG4 (Native) with MP3 (Native) 44100 Hz stereo sound
This will save your video in widescreen that will play OK. (Does with me).
Save to the PC first and use WDVD maker to create your DVD.I have found that VP DVD generation sometimes never stops and has to be aborted giving the message that the film wasn't saved. Inspection of the DVD in fact shows that it has. Seems to happen with version 3.04 though.
In practice however I use DVDStyler to generate my discs. The Sothink DVD creator is also quite good but the free version pops an advert for the product at the start of each video.
Nat