Allmost all burning programs have the ability to burn vcd this days .They use *.mpg files .You can tranfer avi2mpg dat2mpg , avi2vcd .You can make your own movies as long as you respect the copyright there is no problem .
I only tranferred one avi (10 min.), to vcd film and burned it to a video CD to try if it worked on my dvd player (and it did ,but poor video quality) ,
Search the internet with a good search engine for AVI2MPG or DAT2MPG or AVI2VCD , and you\'ll find what you are looking for (f.e. Copernicus ,www.copernicus.com .)