Two years ago, I spoke at Microsoft Research, giving a talk called "DRM and MSFT: A Product No Customer Wants." The talk (see the transcript) has become a very widely cited resource on DRM, and has been translated into several languages, repurposed as an audiobook and a PowerPoint presentation, and so on. The video has apparently been one of the most-requested videos on the Microsoft internal network for years.
Now Microsoft has released this video to the public, though you need Microsoft Internet Explorer and Windows Media Player to see it.
(Thanks, Mark!)
Update: Here's a direct link to the video, thanks, Dan!)
Update 2: Here's the video on Google Video – Thanks, James!