http://www.aiseesoft.com/article/dvd-to-zune-converter.html
It includes two parts:
1. How to convert video to Zune?
2. How to trim, crop, join and edit video for Zune?
The video formats Aiseesoft Zune Movie Converter support are as follows:
AVI, XviD, WMV, MPEG, MPG, FLV, RM, RMVB, ASF, MP4, etc.
The audio formats supported by Aiseesoft Zune Movie Converter are:
MP3, M4A, WMA
Part 1: How to convert video to Zune?
Step1. Please download Aiseesoft Zune Movie Converter; you can free download it from here.
http://www.aiseesoft.com/zune-movie-converter.html
Step2. Install and run Aiseesoft Zune Movie Converter, click the “Add File” button to import your video. Aiseesoft Zune Movie Converter support batch conversion, so you can import multiple files at a time. If you experience any problems adding videos by directly clicking the “Add” button, you can click “File -> Add files…” to add the video files you want to convert from your computer
Step3. Then Click the “Format” drop-down list to select the format you prefer for each added file. If you don’t know what formats your device support, you can just select the format according to the device name.
If you want to customize the output quality, click the “Settings” button to open the Settings panel, where you customize resolution, frame rate, video bit rate, audio bit rate, sample, etc.
After all things done, click “Start” to start conversion.
Put video on Zune
After finish conversion, plug in your Zune to computer via USB cable, then zune software will detect your Zune as a device. drag your converted video to Zune software and click 'Start to sync', then your video will be transfered to Zune. You can download the Zune software free from here to put movie on Zune.
http://www.zune.net/en-us/meetzune/software.htm
Next part: How to crop, edit, join and trim movie movie for Zune?
Free Trial: Download Aiseesoft Zune Movie Converter