As you want to remove DRM license from protected wmv, you may find many such softwares on
Google or other downloading websites.
Here, I found efficient one with good quality
You can free download it to have a try.
http://www.wmatomp3-converter.com/digital-media-converter-pro.html
It can perform all types of conversion including video to video, video to audio, and audio to audio (WMA, WMV, MP3, M4A, FLV, RMVB, MOV ect), EVEN high-definition video (M2TS, TP, TRP, TS, AVI), then you can play them with different players such as iPod, PSP, Zune, Creative Zen, Archos, etc. It is the only program I have tried that can remove DRM without recording so the conversion speed is pretty good.
Hope it helps
