Information recording medium, method for recording information, and method for reproduction information

An information reproducing apparatus for reproducing a representative picture recorded on an information recording disc, wherein,

• the information recording disc includes a first area of a managing file in which management information is stored and includes a second area of an audio file in which audio information is stored or a video file in which video information is stored,
• the information recording disc having at least one object recorded in the audio or video file, said object includes object units managed by cells, said object units each includes at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded,
• said management information includes a plurality of program chain information, a plurality of program information, cell information representing said cells, and disc representative picture information for one disc representative picture, wherein at least one of said program chain information designate respective cell reproduction orders, said cells refer to a part of the object,
• said disc representative picture information includes information regarding a program chain number, a program number, a cell number, a picture point as a presentation time of a picture representing recording contents of the disc, and information regarding a time when the disc representative picture was made, said disc representative picture is any picture included in the object,
• the information reproducing apparatus comprising
• a first reproducer for reproducing the management information for referring to the disc representative picture information, and for determining a position of the disc representative picture in the audio file or video file;
• a second reproducer for reproducing the disc representative picture based on the position determined by the first reproducer;
• and
• a decoder for decoding the disc representation picture.

An information recording method for recording a representative picture on an information recording disc that includes a first area of a managing file in which management information is stored, and a second area of an audio file in which audio information is stored or a video file in which video information is stored, wherein

• the information recording disc includes at least one object recorded in the audio or video file and said object includes object units managed by cells, said object units each includes at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded,
• said management information includes a plurality of program chain information, a plurality of program information, cell information representing said cells, and disc representative picture information for one disc representative picture,
• at least one of said program chain information designate respective cell reproduction orders,
• said cells refer to a part of the object,
• said disc representative picture information includes information regarding a program chain number, a program number, a cell number, a picture point as a presentation time of a picture representing recording contents of the disc, and information regarding a time when the disc representative picture was made, and
• said disc representative picture is any picture included in the object,
• the information recording method comprising the steps of:
• a first step for determining a position of the disc representative picture in the audio file or video file, and generating the disc representative picture information;
• and
• a second step for recording the management information including said disc representative picture information.

An information recording apparatus for recording a representative picture on an information recording disc, wherein,

• the information recording disc includes a first area of a managing file in which management information is stored and includes a second area of an audio file in which audio information is stored or a video file in which video information is stored,
• the information recording disc having at least one object recorded in the audio or video file and said object includes object units managed by cells, said object units each includes at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded,
• said management information includes a plurality of program chain information, a plurality of program information, cell information representing said cells, and disc representative picture information for one disc representative picture,
• at least one of said program chain information designate respective cell reproduction orders,
• said cells refer to a part of the object,
• said disc representative picture information includes information regarding a program chain number, a program number, a cell number, a picture point as a presentation time of a picture representing recording contents of the disc, and information regarding a time when the disc representative picture was made, and
• said disc representative picture is any picture included in the object,
• the information recording apparatus comprising:
• a first processor for determining a position of the disc representative picture in the audio file or video file, and generating the disc representative picture information;
• and
• a second processor for recording the management information including said disc representative picture information.