The Digital Entertainment Content Ecosystem, a consortium of sixty Hollywood content owners, hardware makers, and software companies I wrote about back in January, has given a name to its theoretically-universal copy protection scheme, which aims to let you pay for a piece of content once and then watch it on an array of gadgets. It’s called UltraViolet. It if works like it’s supposed to work, it could be neat–but it’ll have to overcome the tendency of ambitious copy-protection systems to be confusing, annoying, and/or unreliable. And there’s still one major gotcha standing in the way of its big dreams: Disney and Apple aren’t on board.