You can use Super Video converter as suggested by n2casey or
:
Download Freeware : Any video Converter
AnvSoft Any Video Converter enables you to convert popular video formats to DVD (.mpg), PSP, iPod(mp4) as well as user defined formats. The easy-to-use interface provides a preview with optional video trimming, as well as settings for video aspect ration, audio bit rate, video codec and frame rate. You can process a single file or batch convert multiple videos at once.
More Info:
http://www.any-dvd-converter.com/