Information recording medium, information recording apparatus and method, information reproducing apparatus and method, information recording/reproducing apparatus and method, recording or reproduction control computer program, and data structure containing control signal

Abstract

An information recording medium includes an object data file for storing object data as a series of content information such as video information and audio information and play list information file for storing play list information defining a reproduction sequence on play list basis. Furthermore, the medium includes a disc information file for storing a plurality of title play lists each containing information specifying play list information defining a play list to be reproduced, pre-command information and post-command information specifying commands to be executed before and after a reproduction, respectively, according to the play list information.