Calling all geeks: I'm researching a software need for work. You remember in the old days before YouTube, when people wanted to share video content on the web, they would put something up that was copy-protected, and you would have to download a special player, and the player would have copy protection in the form of some sort of licensing/password admin? (Put another way, the video could be played by me on my machine with my password/IP/whatever, but I couldn't just email the video to you so you could see it -- you'd have to buy/rent/license it too.)
I know that stuff must still exist, but I don't know what any of it is called, and I could use some narrowing terms for my search, as you can imagine that the lion's share of the websearch hits for "copy protection" are talking about legal battles.
Any ideas?