http://www.download.com/3000-7970_4-10341695.html
You just open the file and hit "Convert". After it's done converting, open up the files using DVD Shrink and encode the file, after which you can burn the ISO using your burning software of choice. :)
Now, once you've downloaded it, here is the process that I would recommend.
1. Open the file using DivxtoDVD and hit "Convert"
2. Convert as many files as you want to add to your DVD and save them into a designated folder.
3. Now, open up DVD Shrink and "Open Files". That should be the folder that you saved all your converted AVI's and Mpeg's
4. Backup the files as an ISO and let Shrink encode.
5. You now have an ISO ready to burn, so open up Nero or Roxio, whatever you prefer, and burn the image to DVD.
6. Enjoy your movie. ;-)

