program to convert videos to put them in the ipod

Hi there I’m asking what programs can i use to convert some videos I have, to see them in the ipod, cause itunes doesn’t recognize them at the time i’m trying to save them on the ipod

DVD to iPod avs/video-DVD-to-Apple-iPod-MP4-video.htm" rel="nofollow" target="_new">GUIDE

All to iPod avs/convert-video-between-all-video-formats.htm" rel="nofollow" target="_new">GUIDE

This is a guide about convert video files to ipod in this forum,maybe can help you too:
http://www.moviecodec.com/topics/22381p1.html