iPod Tip #12: Convert WMV to Play on iPod with Video (blogspot)
Do you want to play WMV file on your new iPod video? Well here is a way to convert WMV files to QuickTime and get it play on the iPod with video. This tip is for Mac OS X users.
Download and install WMV Player Pro $49 (free trial). WMV Player Pro lets you convert WMV files to QuickTime.
After you install WMV Player, open up the WMV file in QuickTime Pro 7.03 ($29.95), and then use Quicktime Pro to convert the video into an iPod-compatible format. The iPod video plays back m4v (MPEG-4) video.
Just use QuickTime Pro File menu -> Export
Pick Movie to iPod (320×240) from the list. This will give your video a .m4v file extension. Just rename it to whatever you like and "Save the exported file as." This will leave your original video untouched.
Now just add it to your iTunes Library and it should play just fine in iTunes and on your iPod with video.