How come my ipod won't sync a video I am trying to sync? I converted the video, but it won't sync.?

If your video is already in mp4 format, you can drag and drop it into iTunes library. Plug in your iPod to computer, iTunes will detect the iPod automatically, then click iTunes menu "File -> Sync iPod", the mp4 video will be transferred to your iPod. Otherwise, you have to convert the movie to iPod compatible mp4 video, and this step by step guide will show you how to do that. This way works pretty well with my iPod touch. http://www.avs4you.com/guides/convert-video-MP4-format.aspx?sct=aff&ct=regnow&cid=175028 Hope it helps. Contact me if you have any other question

First of all check whether there is enough space in your device for the video to sync. If you have enough space then try to sync by iTunes by the steps given by others above. If not delete few contents any make some space.