Patent ID: 7616862

Claim:
A recording medium for being read by a reproducing apparatus and having a data structure for managing additional content data of main data recorded on the recording medium, comprising: a data area storing a clip file including main data and/or additional content data of the main data, the additional content data including markup language or Java script; a navigation area storing at least one navigation file, the navigation file including at least one navigation command group, at least one navigation command group including at least one navigation command for managing reproduction of the clip file including the additional content data to be reproduced with main data recorded on the recording medium, at least one command group indicating at least one playlist file including reproducing information related with the additional content data; a playlist area storing the playlist file including at least a pair of in-point and out-point that point to presentation times on a time axis of the clip file, and the playlist area separate from the navigation area; and a clip information area storing at least one clip information associated with the clip file, the clip information file includes information mapping a presentation time stamp to a source packet address in the clip file, wherein the data area having the main data and/or additional content is separate from the navigation, playlist and clip information areas, and the main data is able to be reproduced and presented by a decoder of the reproducing apparatus, and the additional content data is able to be reproduced and interpreted by the decoder of the reproducing apparatus.