Data recording method and apparatus, data recording medium, and data reproducing method and apparatus

A system for decoding picture information includes an information retrieval device and a computer readable medium, the information retrieval device configured to retrieve information from the computer readable medium, and the computer readable medium comprising:

• a plurality of sectors each including a user data field and a subcode field;
• at least one of the user data fields includes data representative of a plurality of still pictures accessible by the information retrieval device including a number of intra-frame (I) pictures, predictively coded (P) pictures, and bidirectionally coded (B) pictures;
• and
• each of the subcode fields is arranged separately from said user data field and each of the subcode fields includes a sector number field and a selectable field, the sector number field includes a sector number to identify a corresponding sector that includes the sector number field,
• a first at least one of the subcode fields includes, as the selectable field, a predetermined time code for the plurality of still pictures in the user data field included in the corresponding sector,
• a second at least one of the subcode fields includes, as the selectable field, entry point information for use in a high-speed search operation and indicating that one or more I pictures is located in the user data field included in the corresponding sector,
• a third at least one of the subcode fields includes, as the selectable field, temporal reference information which indicates an order for displaying the plurality of still pictures in the user data field in the corresponding sector and which enables access to a desired still picture selected by a user from among the plurality of still pictures in the user data field in the corresponding sector, and
• a fourth at least one of the subcode fields includes, as the selectable field, copyright information that identifies, to the information retrieval device, a sector copyright limitation of the user data field in the corresponding sector, the sector copyright limitation configured to instruct the information retrieval device to differently limit each of a digital copy output, an analog audio output, and an analog video output of the information retrieval device.