Device and method for reproducing multimedia optical disk improved in interactive reproduction performance

Abstract

A multimedia optical disk contains a data area for recording a plurality of objects. The data area is composed of a plurality of small areas and one object is recorded over continuous small areas and each small area contains first and second subareas. Animation data in a unit of a prescribed period of time and auxiliary video data to be reproduced simultaneously with the animation data are recorded in the first subarea and the auxiliary video data are a menu picture containing a plurality of buttons used for choosing between various display modes. Control information is recorded in the second subarea and the control information contains button control data required for responding to the operation of the user when the menu picture in the first subarea in the same small area is to be reproduced and supplementary control data for operating the menu for the user. When the optical disk is constituted in such a way, the response and the interactive feature of the disk can be improved, because the disk can be controlled on a small area basis. In addition, since the operation of the user can be executed by using the supplementary control data for each small area, the interactive reproduction advancing performance can be improved.

Description

technical field [0001] The invention relates to a reproducing device and a reproducing method of an optical disc recording multimedia data, in particular to improving the reproducing function in interactive applications. Background technique [0002] Conventionally, laser discs and video CDs are known as optical information recording media and recording and reproducing devices for recording and reproducing audio information and moving image information. [0003] A laser disc is an optical disc with a diameter of about 30 cm that records about one hour of analog moving image data, and is widely used as a recording medium for movies and music videos. However, considering the problems of portability and storage, the size of the laser disc is not suitable, so a further compact recording medium is required. [0004] Video CD is a CD with a diameter of 12cm that is realized as a disc for sound recording by recording moving images with a large amount of data using a high compressi...

AI Technical Summary

Problems solved by technology

In this way, interactive movies cannot be enjoyed like ordinary movies for users who are not interested in story participation or users who cannot make choices at branch points.

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