Patent ID: 7362953
Filing Date: 2008-04-22
Classification: G11B,H04N

Abstract:
1. A machine readable information recording medium embodied as a recordable optical disc for access by an optical disc drive, said machine readable information recording medium comprising: a lead-in area located on an inner circumference side of the information recording medium; and a data area being on an outer circumference side of the lead-in area, the data area being divided into physical sectors corresponding logical sectors, each of said logical sectors having a size of 2,048 bytes, logical sector serial numbers being assigned to the logical sectors, and a part of said logical sectors corresponding to logical blocks to which logical block numbers are assigned respectively, wherein said data area comprises: a first area, on the data area, that stores a video file including video data, and a second area, on the data area, that stores management information including original program chain information designating a reproduction order of the video data in the video file, the original program chain information including program information associated with a corresponding one or more cells for a program, and program type representing protect information indicating whether or not a corresponding program associated with the original program chain information is protected, wherein, when the protect information indicates that the corresponding program is protected, indication of the protect information means that all video data referred to and utilized in presentation of the program are not temporarily or permanently erased, and the management information further includes user defined program chain information designating a chain of a Part of Programs.