Comments by Bryce Abbott (Top 1 by date)

Hi, thanks for all your input, Christian, Ed and Roliking. I appreciate the effort you put into answering. I think that I will probably go with html5 with a fallback to flash for older browsers.
The main reason I'll do this is that html5 seems to be the future, while Flash seems to be on the way out, and Silverlight, though elegant, has limited applicability.
I'll store the videos in Azure blobs, and construct a url with limited life credentials so that at least the user won't be able to capture and re-use the url. And I'll research putting a transparent div over the video.
Once again, many thanks for your help.