RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION APPARATUS AND METHOD, AND COMPUTER-READABLE PROGRAM

摘要

An AV Clip generated by multiplexing video and graphics
streams is recorded on a BD-ROM. The graphics stream is a
sequence of PES packets. The PES packets include ODSs (Object
Definition Segments) carrying graphics data and PCSs

(Presentation Control Segments) carrying control information.
A PCS indicates that graphics data in a preceding ODS in the
arrangement is to be displayed at a predetermined time in
a state of being overlaid on the video stream. The PCS and
the preceding ODS belong to different DSs, and the graphics
data in the preceding ODS may be non-referenced graphics data
that is not referenced by a PCS which belongs to the same
DS as the preceding ODS.