I would like to set up some WMV Video Streaming, using Windows 2003's Streaming Media Server and Silverlight.
Now, unfortunately Silverlight only supports HTTP, which means that people can just download the videos. While that in itself is not a problem, I wonder what options there are to prevent them being playable outside of the network.
Of course, DRM comes into mind. Is there an easy way to get it and set it up? I do not want to have some complicated User-Scheme, it essentially boils down to "If you can reach the server (which is only in the internal network), you get a license, otherwise not".
Any experience with WMV DRM or Content Protection in that area? What would I need on top of Windows 2003 Server and Silverlight 2?