Patent ID: 8107792
Filing Date: 2012-01-31
Classification: G11B,H04N

Abstract:
1. A non-transitory recording medium storing a data structure for managing reproduction of data recorded thereon by a reproducing apparatus, the recording medium comprising: original management data managing reproduction of stream data, the original management data including at least one stream information file, at least one playlist file, and at least one general management file, the at least one stream information file managing at least one stream file including the stream data, the at least one playlist file managing the at least one stream information file and the at least one stream file, the at least one general management file being associated with reproduction of the physical recording medium; and back-up management data in a back-up directory duplicating the original management data, the back-up directory not comprising duplicate stream files of the at least one stream file, wherein if a data in the original management data is erased, a corresponding back-up data in the back-up management data is erased for consistency between the original management data and the back-up management data, wherein the at least one playlist file includes at least one playitem and at least one sub-playitem, the playitem indicating an in-point and an out-point of the at least one stream file for reproducing the stream data in the at least one stream file, the sub-playitem indicating an in-point and an out-point of the at least one stream file for reproducing the stream data in the at least one stream file, wherein each of the at least one general management file and the back-up file thereof has a same file name and a same file extension, each of the playlist files and the back-up file thereof has a same file name and a same file extension, and each of the at least one stream information file and the back-up file thereof has a same file name and a same file extension, the playitem including a stream information indicator identifying a file name of a stream information file using the playitem, each stream file corresponding with one of the stream information files, a stream file and a corresponding stream information file having a same file name.