Using all defaults in Vegas makes for a 70-minute DVD. Anything longer requires that you use a lower than default bitrate to make your MPEG file.
I have never made a DVD directly from the Vegas Timeline. Go to the “Render As” menu and make your MPEG2 and AC3 files from there. When encoding the MPEG2 file, open the “Customize Template” option and lower your maximum bitrate.
You can find a bitrate calculator on the web. I use “Marks Bitrate Calculator”.
When you have the MPEG2 and AC3 files, drag the MPG file to your DVDA Project Overview window.
Steve Mann
MannMade Digital Video
http://www.mmdv.com