- First choose a compression codec. A codec is software used to compress a media file, and many different compression codecs can result in a file with the .avi extension. The most popular codecs for DVD backup are DivX and XviD. Choose the DivX codec if you would like to burn your AVI files to CDs, as most set-top DVD players will be able to play them. If you will be storing your archive on a computer, use the XviD codec. The XviD software is open-source and free to use, while the professional version of DivX must be purchased.
- Be mindful of the original format when you convert your files. Remember that anything released in the United Kingdom and many other regions will be in the PAL video format, which means that the converted video file should play at 25 frames per second. SimpleDivX contains an option to specify the frame rate of the resulting AVI file.