Get ffmpeg, dvdauthor, dvdstyler installed on your system, then you can:
Code:
ffmpeg -i source.avi -target ntsc-dvd target.mpg
and either do this to make a simple DVD:
Code:
dvdauthor -t -o target.dvd -f target.mpg
dvdauthor -T -o target.dvd
or use dvdstyler to create a basic menu structure.
man ffmpeg for more options on creating your .mpg files.