Patent ID: 6944391

Claim:
An information recording medium comprising: an object recording area configured to store an object which has a plurality of object units each including video data or audio data of recorded contents corresponding to a program; a control information area configured to store control information; a program chain information area included in the control information area; 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 describes an entry point that marks a position to enter within the program, and a first portion of the area is described by an ASCII character set and a second portion of the area is described by another character set; and a management table area included in the control information area, wherein, the management table area is configured to store a character set code and identification information of the control information, the another character set is defined in the character set code in the management table area, and the character set code can be set as ISO 8859-1 code or Shift JIS Kanji code.