A video signal processing apparatus, a video signal playback apparatus,
and a video signal recording apparatus are presented for preventing
illegal copying of thumbnail images. For example, a thumbnail encoder
generates a thumbnail image of a video signal input from a terminal. A
macrovision detector, a CGMS detecting/updating unit, and a WM
(watermark) detecting/updating unit detect an analog copy protection
signal (APS), a CGMS signal as copy generation management information,
and watermark, respectively, of the video signal input from the terminal,
and outputs them to a controller. The controller generates copy control
information of the thumbnail image based on the input copy control
information. The thumbnail image and the copy control information thereof
are recorded in an information recording medium. This may be applied to a
recording apparatus for recording data into an information recording
medium and to a playback apparatus for playing back data recorded in an
information recording medium.