DRM (Digital Right Management)doesn't mean just basic copy-protection of digital content (like ebooks, MP3s or DivX videos), but it basically means full protection for digital content, ranging from delivery to end user's ways to use the content. I came across with this term a few years back while searching for some games over the internet. Some of the example of DRM is to limit the number of time of installation (eg. after 3x installation u can throw ur ORIGINAL disc to the trashcan ⌐_⌐b), only allow installation on a single PC (this sounds more reasonable), activation through internet (as usual), etc. Assassin's Creed II was launched lately and Ubisoft has announced their DRM for this game. Players need to create an account at the Ubisoft server (a lot of games have already implemented this). Here come something new, in order to play the game, players need to be constantly connected to the internet. Meaning that if ur internet connection is down, ur game will be paused...