You can also encode the video/audio file and make it compatible with Windows Media Player. WMV is Windows Media Video file so you can convert videos to WMV. Similarly, you can convert unsupported audio files to WMA. WonderFox HD Video Converter Factory Pro is an easy and simple video converter that supports almost all video/audio inputs, and 500+ digital formats and devices. After the conversion, you’re able to play the file on Window Media Player without a hassle. The following instruction shows you how to convert unsupported videos to Windows Media Player.