The HD DVD format has got an extra anti-piracy boost with the help of a new audio based watermarking technology, unveiled by the Hollywood. The technology works by adding a watermark to the soundtracks of all major movies, including those released at the cinema. This watermark is not audible to the human ear, but can be recognised by the decoder in HD DVD players. If the HD DVD player recognises the watermark that should not be present on any HD DVD media (such as the watermark included in the soundtrack in the cinema), it will stop playback of the disc. The same goes with detecting a watermark on recordable HD DVD media that should only be present on original factory-pressed media.
In order to prevent a mess-up from happening, such as if someone accidentally captures the sound of a movie while taping with their camcorder, the HD DVD player allows a certain amount of tolerance. This means that for clips of a short duration, the HD DVD player will not reject the movie, such as from someone taping the family and happens to have a TV on with a HD DVD movie playing in the background. Unfortunately in an aim to enforce this anti-piracy measure, Hollywood aims to have this anti-piracy measure implemented in all recordable drives including (but not limited to) CD/DVD drives, hard disk drives to even PCs. Thanks to TrueAudio for using our news submit to let us know about the following news:
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If a DVD player detects the telltale code, the disc must be an illegal copy made by copying a film print to video, or pointing a camcorder and microphone at a cinema screen. So the player refuses to play the disc. |
It looks the DVD Forum still wants to prove anti-piracy measures is one of its top priorities, especially since Blu-ray appears like it will not support mandatory managed copying, something the movie industry is happy to hear. It is interesting to see this measure being put into audio, but then again DVD Audio uses its own form of watermarking to counter piracy.
Feel free to discuss about the HD DVD format on our Satellite, HD-TV, Blu-ray and HD-DVD Forum.
Source: New Scientist






