Quote:
Originally Posted by Altor
I first encountered this when I tried to copy something from DVD to VHS many years ago. Content providers can insert a signal into the video feed that tells recording devices that the video may not be duplicated.
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It was called MacroVision. It is still around, but since so few people copy to VHS (who would want to), it has almost been forgotten about. It was easily defeated by inserting a device in the connection between the two machines. The same device also could be used to improve the picture on marginal videos too....which made the device legal even if some specific uses of it were not.