HOWTO make a video DVD from an avi/mp4/etc from any file type?

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.