Patent ID: 7356514
Filing Date: 2008-04-08
Classification: G11B,H04N

Abstract:
1. A reproduction apparatus for reproducing video data and/or audio data from a medium dedicated to reproduction or a recordable medium having video data and/or audio data recorded thereon, the video data and/or audio data being generated by superimposing information concerning an attribute of a video signal and/or an audio signal on a signal of digitized video data and/or a signal of digitized audio data, the reproduction apparatus comprising: a reproducing circuit which reproduces the information concerning an attribute superimposed on the video data and/or audio data from the medium; an identifying circuit which identifies a type of the medium as a medium dedicated to reproduction; and a stopping circuit which stops reproduction in response to a determination that the medium is illegally produced, the determination being based on a combination of the information concerning an attribute reproduced by the reproducing circuit and the type of the medium identified by the identifying circuit as the medium dedicated to reproduction.