3herosoft Zune Video Converter
it can convert popular video formats to zune video and audio files to zune audio
Tipard Zune Converter Suite
Convert DVD/video to Zune supported formats, and extract audio from video files.
Pavtube Video to Zune Converter
pavtube video to zune converter can convert mov, avi, etc. to zune wmv, mp4.
Xilisoft Zune Video Converter
It can convert popular video formats to Zune video and audio files to Zune audio