WinMPG Video Convert
If you need to convert videos among different formats, you'll want to give this program a try. It converts videos between multiple kinds of formats, including popular ones such as Quick Time, MPEG I and II, AVI, VCD, WMA, and DivX, among many others. WinMPG Video Convert is like the protocol droid of digital video conversion: It speaks all the languages.
Before you convert videos, you can select a variety of options, such as the video size and frame rate of the converted file. You can also preview the video before converting it. Keep in mind, though, that you won't be able to convert files to the format used by the iPod. But if you need to convert other types of formats, it's worth the download.