High Quality Content by WIKIPEDIA articles! The DVD Copy Control Association (DVD CCA) is an organization primarily responsible for the copy protection of Blu-ray Discs and DVDs. The Content Scramble System (CSS) was devised for this purpose to make copyright infringement difficult, but also presents obstacles to some legitimate uses of the media. The association is also responsible for the controversial Regional Playback Control (RPC), the region encoding scheme which gives movie studios geographic control over DVD distribution.