Katsuhiko Miwa

Multimedia optical disk, reproduction apparatus and method for achieving variable scene development based on interactive control

Multimedia optical disc storing both video titles provided with AV functions and video titles with no such functions which can instantly distinguish between such kinds of titles, and a reproduction apparatus and reproduction method for such disc

Multimedia optical disc for storing audio data and sub-picture data in a plurality of channels as well as moving picture data and apparatus and method for reproducing the multimedia optical disc

Optical disc and reproduction device which can achieve a dynamic switching of the reproduced content

Optical disc for coordinating the use of special reproduction functions and a reproduction device for the optical disk

Optical disc for which a sub-picture can be favorably superimposed on a main image and a disc reproduction apparatus and a disc reproduction method for the disc

Multimedia optical disc facilitating branch reproduction to parental lock sections using reduced control information and a reproducing device for said disc

Optical disc, recording apparatus, a computer-readable storage medium storing a recording program, and a recording method

Multimedia optical disc which can preserve the freshness of stored data, a reproduction apparatus for reproducing such optical disc and a reproduction method

Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus, and optical disc reproducing method