Many of my friends have heard me complain (OK, rant) about DRM. DRM officially stands for "digital rights management," but I prefer "digital restrictions management." The most common use of DRM is for video like Blu Ray discs and Netflix. DRM software enforces the restrictions imposed by the seller. You only get to use the media in the way they intended, no matter how much money you spent to buy it. You don't fully own that disc you just bought. Want to skip the previews? Sorry....