DVD Copy Control Association
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The DVD Copy Control Association (DVD-CCA) is an organisation primarily responsible for the copy prevention of DVDs. The content scrambling system (CSS) was devised for this purpose to make copyright infringement difficult. The association is also responsible for the much criticised regional playback control (RPC), the region encoding scheme which gives movie studios geographic control over DVD release dates to maximise their investments and also help thwart piracy.
They filed the much publicized case versus Jon Johansen whom they alleged wrote DeCSS. The case was dropped in January of 2004.