Here is a link from
WinAvi site to download some codecs:http://www.
winavi.com/en/download/codec.htm also you can download from this site whatever you want:http://www.free-codecs.com/ Any mega pack has a lot of codecs inside is good to have one like All in one a liter version or Ace or K-Lite mega packs.Search the site for them.GSpot is a video analyser and open your file with to find out what type of file you have and start the conversion from that type to whatever you want to make a cd or a dvd.If you have more than one avi file find a good join tool and put all in one file or upload all of them in
WinAvi but be sure are video files not ifo or b-up file and here you may use GSpot to find out.Here is a link with tutorial how to make a dvd and some downloads:http://www.afterdawn.com/index-menu.cfm Good Luck!