Patent ID: 7657770
Filing Date: 2010-02-02
Classification: G10H,G11B,H04N

Abstract:
1. A method for reproducing content data and additional data describing the content data, the method being performed by a reproducing device including a controller, the method comprising: retrieving, by the controller, the content data, the additional data, link information, and management information, the management information including indication information and the additional data being a set of metadata, wherein the indication information indicates a presence of time information, the time information being associated with a presentation time of the additional data, and wherein the link information is used for linking the content data and the additional data; and reproducing, by the controller, the additional data in a synchronous manner with the content data, using the link information and the time information when the indication information indicates that the time information is present, wherein a single content datum is associated with additional data.