Patent ID: 7352958

Claim:
A machine readable information recording medium embodied as a recordable optical disc for access by an optical disc drive, wherein said recordable optical disc has an outline of two-adhesive substrates, and comprises a center hole, a clamp area around the center hole, and a read-out face around the clamp area, said read-out face is located at one of the two-adhesive substrates, the recordable optical disc comprises a spiral track on which sectors are placed, and data can be recorded on or reproduced from the sectors using a laser, said data including control information and video object data, the information recording medium comprising: a data area storing: a plurality of error correction code blocks including the video object data, said video object data having at least one of video object units, wherein a predetermined number of the sectors form each error correction code block, and each of said sectors has a predetermined size; and a control information recording area storing said control information, the control information managing the video object data and including an AV file information table having a first area storing object stream information, and a second area storing AV file information describing information on the video object data, the AV file information including a plurality of object information, and a plurality of object information search pointers associated with the plurality of object information, wherein: an error correction code block address relates to the predetermined number of said sectors, each said object information includes time map information having time map general information, one or more time entries, and one or more video object unit entries, said time map general information includes information indicating a time offset for the time map information, and each of the time entries includes numeral information on a corresponding video object unit entry of the video object data, and time difference information describing a time difference between a calculated presentation time and a presentation time of a corresponding video object unit of the video object units, and wherein the control information is provided to control recording, playing back, or editing the video object data by an information recording/reproducing apparatus, the video object data is accessed according to the control information.