From a secret source....
http://eurorevenue.com Uses DRM, and prob does some sales too.
Legal Note: If you use DRM and anyone breaks it, rips your content, ect.. It is straight illegal and you can use that pressure on registrars to lock up domains and/or get injunctions, and expand into the EU, as it's straight theft at that point. It's something that is being used to attack torrents. The legal gates open wide, well past - country level copyright/trademarks.