In one embodiment, the method includes retrieving management information associated with audiovisual data. The management information includes location information, an indicator, and reference information. The method further includes identifying whether or not a set of additional data associated with the audiovisual data exists in a stream including at least a portion of the management information using the indicator, the additional data being describing the audiovisual data. The indicator includes one of a first indicator value indicating that the set of the additional data associated with the audiovisual data exists in the stream and a second indicator value indicating that the set of the additional data associated with the audiovisual data does not exist in the stream. The audiovisual data and the set of the additional data are retrieved using the location information specifying a location of the set of the additional data and the reference information being assigned to the audiovisual data, and the audiovisual data and the associated additional data are reproduced.