The DVD Copy Control Association (DVD-CCA) is an organisation primarily responsible for the copyright protection of DVDs. The content scrambling system (CSS) was devised for this purpose to make piracy 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.
... precessing, with its axis slipping around in the groove in a circular fashion. The groove inside the device, is a little wider than the axis, and the gyroscope's evasive ...