Download video/audio from Channel 9
Download video/audio from Channel 9: http://channel9.msdn.com/
1. Install Script Extension for your Web Browser
2. Open a video page in Channel 9, for example: http://channel9.msdn.com/Blogs/Windows-Phone/Coding-Basics-and-App-Creation-Part-1-
3. Click the "Resolve" button below the video area
4. Enjoy it!
For more information, please refer to this link: http://openszone.com/software/user-script-channel9-resolver