This invention allows the user to insert an entry point (bookmark) at an arbitrary recording position of video data, audio data, and the like as if he or she placed a bookmark between pages of a book. Information RTR_—VMG that manages recorded objects includes movie cell entry point information M_—C_—EPI. M_—C_—EPI includes entry point playback time information EP_—PTM and text information PRM_—TXTI that pertains to an entry point. PRM_—TXTI can store text information that pertains to its contents together with type information and date information of an entry point.