Patent ID: 7151889

Claim:
An information recording medium comprising: an object recording area configured to store an object which has an object unit including video data or audio data, said video data including still picture information; a control information recording area configured to store control information including still picture management information of said still picture information; a program chain information area included in the control information; a cell information area included in the program chain information area; an entry point information area included in the cell information area; an area included in the entry point information area configured to store primary text information, wherein the primary text information corresponds to an entry point that marks an arbitrary position in the video data or audio data for a user to freely set the video data or audio data, and a first portion of the area is described by an ASCII character set and a second portion of the area is described by primary text of another character set; and a management table included in the control information and configured to store: a character set code used in the primary text information, and start address information of said still picture management information wherein the control information provides a functionality with respect to the video or audio data such that when processed by a medium access device, the video or audio data is managed and accessed according to the control information.