Use ffmpeg, it's both much easier and faster. For example:
ffmpeg -i some.vob -y -target ntsc-dvd -aspect 16:9 -b 1800 some.mpg
You can then create a simple dvdauthor XML config file, for example, let's call it 'dvdauthor-simple.xml':
Code:
<dvdauthor dest="DVD">
<vmgm />
<titleset>
<titles>
<video format="ntsc" aspect="16:9" widescreen="nopanscan"/>
<pgc>
<vob file="some.mpg"/>
</pgc>
</titles>
</titleset>
</dvdauthor>
Create the DVD structure with:
dvdauthor -x dvdauthor-simple.xml
You now have a DVD directory in the current directory, which you can burn to disk with (where /dev/scd0 is your DVD burner device):
growisofs -Z /dev/scd0 -dvd-video DVD/