Hi
Normally if you save your project to disc VP creates an AUDIO-TS file and a VIDEO-TS file
The VIDEO-TS folder contains the BUP, IFO and VOB files for your project. These will play on your DVD player. (They do on mine at least)
Note that VP will not create a menu for your project and the film should auto start. If you created bookmarks in your project you can jump from one to the next bookmark as they are treated as chapters.
Saving as an MPEG2 file as a VIDEO DISC can't be done although you can easily save your project as an avi (XVID) to your PC and then convert it to an MPEG2. In this format you could then load it into Windows Movie Maker and create you DVD (with menu) from there.
Nat