Patent ID: 7729595

Claim:
An optical disk storing an executable data structure for managing reproduction of text data by a reproducing device, comprising: an area storing at least one main audio-visual (AV) data and at least one subtitle information segment, each subtitle information segment being represented by each PES packet of transport packets and having a one-to-one correspondence with the PES packet, the PES packet including a packet identifier for identifying a type of the packet, wherein the at least one subtitle information segment includes a segment identifier identifying the subtitle information segment as one of text data and graphic data; wherein a first subtitle information segment of the at least one subtitle information segment identified as the text data includes a palette identifier identifying palette information for controlling color attributes of the text data, wherein a second subtitle information segment of the at least one subtitle information segment identified as the text data includes at most two text subtitle regions, and each text subtitle region is linked to at least one first style information defined in the first subtitle information segment using an identifier, wherein the second subtitle information segment of the at least one subtitle information segment identified as the text data includes second style information for managing reproduction of the text data by the reproducing device, and wherein a third subtitle information segment of the at least one subtitle information segment identified as the graphic data is multiplexed with the at least one main AV data into a file.