Patent ID: 8671301

Claim:
A method for providing a describing data associated with a main data, the method comprising: retrieving, by one or more processors, describing data, linking information, indication information, still video location information, and format information, wherein the still video location information indicates a location of the still video data and corresponds to still video location index information; associating, using the linking information, the main data with the describing data; linking, using the still video location information, the main data with the still video data; decoding, by a decoder, the describing data according to the format information; and providing, by a display, the describing data and the still video data in a synchronous manner with the main data, wherein a time line of the describing data and the still video data is mapped to a time line of the main data based on time information, wherein the time information is provided or not according to the indication information, and wherein the time information is provided in a case that the indication information is a specific value, and the time information is not provided in a case that the indication information is not the specific value.