Information reproducing system identifying previously stored playback information

Claim 1

An information reproducing system for playing back a group of recording media stored in a magazine, each recording medium having recorded information to be reproduced and Table of Contents (TOC) information with respect to the recorded information, so that the recorded information of the recording media can be reproduced according to the TOC information, said information reproducing system comprising: A) reading means for reading the TOC information for each of the recording media before the recording media are played back; and B) playback control means for controlling playback operation of the recording media based on the read TOC information, wherein said playback control means comprises: i) TOC information storing means for registering the TOC information read by said reading means as corresponding to the magazine; ii) identification information generating means for generating identification information inherent in the magazine; iii) recording medium group checking means for checking the magazine for idenity based on said identification information; and iv) reading means for reading registered TOC information corresponding to the magazine from the TOC information storing means based on the result of checking by said recording medium group checking means, wherein said playback control means comprises an addition/change checking means for determinimg wheter the recording media contained in said magazine include an added or changed recording medium, and a data processing means for processing data as required by the recording medium added or changed.