Patent ID: 6985411

Claim:
An information recording medium on which one or a plurality of titles, each of which is a logically-grouped information unit, are recorded, comprising: an object data file for storing object data which constitutes a series of content information; a play list information file for storing a plurality of play list information which defines a reproduction sequence of the object data stored in said object data file by a unit of a play list which is logically accessible; and a disc information file for storing a plurality of information groups including, as reproduction control information for controlling the reproduction of said object data file, (i) play list specification information for specifying one play list information which defines the play list to be reproduced from among the plurality of play list information stored in said play list information file, (ii) Pre command information which indicates a command to be executed before the reproduction based on the one play list information, and (iii) Post command information which indicates a command to be executed after the reproduction based on the one play list information, the title being logically constructed by one or more than one of the plurality of information groups.