| 摘要 |
An extended video data obtained by adding, to a first video data required for outputting a video signal of a main image, a second video data required for outputting the video signal of an information-embedded mark image 4 that reflects the contents of a control information used to control operations of an external target device 62 is recorded in a video recording medium 61M beforehand. An extended video signal obtained by reproducing the extended video data is separated by an external device controller 60 into a main image reproduced video signal based on the first video data and an information-embedded mark image reproduced video signal based on the second video data. Then, the separated information-embedded mark image reproduced video signal is decoded into operation control data which can be directly read by the external target device 62 and output to the external target device 62.
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