How do you get a MP4 file to play on an iPod?

TV shows and videos purchased from iTunes can be played on iPod directly. If you have videos in other formats which is not supported by iPod, you can use iPod Video Converter to convert the files to the one supported by iPod. Use software to convert

A more simple way is just to take a video file and convert it to mp4 if it is not in an mp4 format, than just drag to itunes and copy to ipod, shouldn't be that hard...