See videos in ipod nano

You can only get some videos whose format is compatible with your iPod nano, as i know, mp4, mov, are supported by iPod nano, while wmv can not be played on iPod nano. so you'd better convert your video format before you view them on your iPod nano.
here, such program such as any video convert, handbrake,etc. are free but they may have limits or bring some virus. you can try the video converter ultimate, it can help you to convert format easily and effortelessly.

As skyocean mentioned, Aimersoft iPod Converter Suite meets your requirement. Besides, you can try Aimersoft Video Converter. Here is the link:
http://www.aimersoft.com/video-converter.html
I hope to help you.

You know only iPod Nano 3 generation can play video, so if check your ipod nano out, if it is, please make sure your video is mp4 for ipod nano, If your video is MP4 video, just follow these steps to add video to ipod nano:
1. Open iTunes and click "File" to add your videos to iTunes library.
2. plug in your iPod Nano to computer, then iTunes will detect your iPod Nano as a device.
3. Select your iPod Nano device on the left panel of iTunes, click "Movies" tab, check the videos you want to sync and click "Apply", done.

If your video isn't MP4 format, you need third party software to convert video to MP4. You may try an iPod converter developed by Aimersoft; it can convert videos to iPod Video and iPod Nano, iPod Touch and iPod Classic with fast conversion speed and excellenrt output quality, that's really good for me, you can have a try, here is its official download link
http://www.aimersoft.com/ipod-converter-suite.html
Hope it helps.

If it isn't the newest version of the nano, they haven't come out with a video mod yet.