Recording medium having data structure for managing reproduction of multiple reproduction path video data for at least a segment of a title recorded thereon and recording and reproducing methods and apparatuses

A method of recording a data structure for managing reproduction of at least video data having multiple reproduction paths on a recording medium, comprising:

• recording at least one clip file storing the video data for a title in a data area such that the video data is recorded as video data packets, the title including a first segment for a single reproduction path and a second segment for multiple reproduction paths, the video data packets for the second segment being interleaved;
• and
• generating management information, the management information including reproduction path information corresponding to the segments and at least one entry point map,
• wherein the reproduction path information includes information indicating the number of the reproduction paths of the second segment and an identifier identifying a reproduction path ID of the multiple reproduction paths of the second segment, and each reproduction path of the multiple reproduction paths is associated with one of the at least one clip file of the multiple reproduction paths, each of the multiple reproduction paths being associated with a different entry point map such that the entry point map maps a presentation time stamp to an address for a corresponding entry point of the video data,
• wherein the entry point map includes information identifying where changing a reproduction path among the multiple reproduction paths is permitted, the information identifying an entry point at which entry to an associated reproduction path from another reproduction path is permitted, and
• wherein at least one playlist is included in the reproduction path information, the playlist is a collection of a plurality of playitems, each playitem including an in-time and an out-time for identifying a playing interval of the video data, and the multiple reproduction paths of the second segment are associated with one playitem, a file name extension of the clip file is different from a file name extension of the management information.

A method of reproducing a data structure for managing reproduction of at least video data having multiple reproduction paths recorded on a recording medium, comprising:

• reading at least one management information, the management information including reproduction path information and at least one entry point map from the recording medium, the reproduction path information corresponding to a title in the recording medium, the title including a first segment for a single reproduction path and a second segment for multiple reproduction paths, the reproduction path information including information indicating the number of reproduction paths of the second segment and an identifier identifying a reproduction path ID of the multiple reproduction paths of the second segment, and the entry point map being configured to map a presentation time stamp to an address for a corresponding entry point of the video data, the video data being stored in at least one clip file,
• wherein the entry point map includes information identifying where changing a reproduction path among the multiple reproduction paths is permitted, the information identifying an entry point at which entry to an associated reproduction path from another reproduction path is permitted, and each reproduction path of the multiple reproduction paths are associated with one of the at least one clip file of the multiple reproduction paths, each of the multiple reproduction paths being associated with a different entry point map,
• wherein at least one playlist is included in the reproduction path information, the playlist is a collection of a plurality of playitems, each playitem including an in-time and an out-time for identifying a playing interval of the video data, and the multiple reproduction paths of the second segment are associated with one playitem;
• and
• reproducing the video data for the segments of a title, the video data being recorded as video data packets, and the video data packets for the second segment being interleaved, a file name extension of the clip file is different from a file name extension of the management information.

An apparatus for recording a data structure for managing reproduction of at least video data having multiple reproduction paths on a recording medium, comprising:

• a recording unit being configured to record data on the recording medium;
• an encoder being configured to encode at least video data having the multiple reproduction paths;
• and
• a controller, operably coupled to the recording unit, being configured to control the recording unit to record at least one clip file including the encoded video data having the multiple reproduction paths on the recording medium such that the video data for a title, the title including a first segment for a single reproduction path and a second segment for multiple reproduction paths, is recorded on the recording medium, the video data being recorded as video data packets, and the video data packets for the second segment being interleaved, and the controller being configured to control the recording unit to record at least one management information including reproduction path information corresponding to the segments and at least one entry point map,
• wherein the reproduction path information includes information indicating the number of the reproduction paths of the second segment and an identifier identifying a reproduction path ID of the multiple reproduction paths of the second segment, and each reproduction path of the multiple reproduction paths is associated with each one of the at least one clip file of the multiple reproduction paths, each of the multiple reproduction paths being associated with a different entry point map, the entry point map being configured to map a presentation time stamp to an address for a corresponding entry point of the video data, the entry point map including information identifying where changing a reproduction path among the multiple reproduction paths is permitted, the information identifying an entry point at which entry to an associated reproduction path from another reproduction path is permitted,
• wherein at least one playlist is included in the reproduction path information, the playlist is a collection of a plurality of playitems, each playitem including an in-time and an out-time for identifying a playing interval of the video data, and the multiple reproduction paths of the second segment are associated with one playitem, a file name extension of the clip file is different from a file name extension of the management information.

An apparatus for reproducing a data structure for managing reproduction of at least video data having multiple reproduction paths recorded on a recording medium, comprising:

• a reproducing unit being configured to reproduce data recorded on the recording medium;
• a controller, operably coupled to the reproducing unit, being configured to control the reproducing unit to reproduce at least one clip file including the video data for a title from a data area, the title including a first segment for a single reproduction path and a second segment for multiple reproduction paths, the video data being recorded as video data packets, and the video, data packets for the second segment being interleaved, and the controller being configured to control the reproducing unit to read at least one management information from the recording medium, the management information including reproduction path information and at least one entry point map, the reproduction path information corresponding to the segments of the title in the recording medium, the reproduction path information including information indicating the number of the reproduction paths of the second segments, and an identifier identifying a reproduction path ID of the multiple reproduction paths of the second segment, each reproduction path of the multiple reproduction paths being associated with one of the at least one clip file of the multiple reproduction paths, each of the multiple reproduction paths being associated with a different entry point map, the entry point map being configured to map a presentation time stamp to an address for a corresponding entry point of the video data,
• wherein the entry point map includes information identifying where changing a reproduction path among the multiple reproduction paths is permitted, the information identifying an entry point at which entry to an associated reproduction path from another reproduction path is permitted, and
• wherein at least one playlist is included in the reproduction path information, the playlist is a collection of a plurality of playitems, each playitem including an in-time and an out-time for identifying a playing interval of the video data, and the multiple reproduction paths of the second segment are associated with one playitem, a file name extension of the clip file is different from a file name extension of the management information.