Apparatus and method for writing and playing back digital broadcasting supplementary service information and recording media therefor

An apparatus of processing content data and language formatted data associated with the content data, the apparatus comprising:

• a receiving unit configured to receive a transport stream;
• a decoder configured to decode the content data and the language formatted data;
• an outputting unit configured to output the decoded data;
• and
• a controller configured to:
• retrieve a data stream, management information, and linking information from the transport stream, wherein the data stream includes the content data and the language formatted data, the content data consisting of at least one content segmented unit and the language formatted data consisting of at least one language formatted segmented unit, wherein the content segmented unit and the language formatted segmented unit have identifier (ID) and presentation time information, respectively, and wherein the language formatted data is configured for being reproduced together with the content data,
• separate the data stream into the content segmented unit and the language formatted segmented unit using the management information, wherein the management information indicates whether segmented unit is the content segmented unit of the language formatted segmented unit using the ID of the segmented unit,
• associate the separated content segmented unit and the separated language formatted segmented unit with each other using the linking information, wherein the linking information assigns reference information to the content data for associating the content data with the language formatted data,
• control the decoder to decode the associated content segmented unit at a specific time determined by the presentation time information included in the content segmented unit, and to decode the associated language formatted segmented unit in a synchronous manner with the content segmented unit using the presentation time information included in the language formatted segmented unit, and
• control the outputting unit to output the decoded content segmented unit and the decoded language formatted segmented unit.