Patent ID: 7039296

Claim:
An information recording method of recording data on an information recording medium, comprising the steps of: recording a video file or an audio file including one object including object units; recording, in a management file, management information for controlling selection of the object in the video file or in the audio file, the management information including, (i) audio/video file information including general information, an object information search pointer, and object information the object information including time map information including information of each of the object units, the information of each object unit including data size information of each object unit, and (ii) a plurality of cell information representing cells and referring to the time map information, the cell information including a cell type information indicating a cell type and the object information search pointer number corresponding to the cell type; recording original program chain information designating a fixed reproduction order of cells represented by a part of the cell information while keeping an original reproduction order of the object units unchanged, the original program chain information being included in an original program chain including object information and the object; and recording new chain information as user defined program chain information in the management file, the new chain information designating a reproduction order of cells represented by another part of the cell information which is different from the fixed reproduction order designated by the original program chain information, the user-defined program chain information describing a user defined program chain including the cells represented by another part of the cell information, the cells represented by another part of the cell information referring to the object in the original program chain, the original program chain remaining unchanged even when the user-defined program chain is created or deleted.