http://www.linuxquestions.org/questions/showthread.php?s=&threadid=295947
> Is there such thing as a free avi-dvd converter for Linux? > If so, any recommendations?
Yes, several, but dvd creation needs some knowledge. It's easy to convert the avi to correct format for dvd, but creating menus for dvd is not yet very simple. Also you need to think the conversion also (interlaced video should be kept interlaced to preserve maximum information, even non-interlaced video will be written interlaced on the dvd), so do some googling about dvd and interlacing.
Easy gui-programs for format conversion:
avidemux kino
command line:
ffmpeg transcode mpeg2enc
wine programs:
virtualdub tmpgenc (30 day free trial, does not count as free though)
For dvd creation:
dvdauthor
simple gui frontends to dvdauthor:
polidori dvdstyler qdvdauthor
nbd
documented on: 02-28-2005