Patent ID: 8055117

Claim:
A non-transitory computer-readable medium having a data structure for managing reproduction of at least one still picture, comprising: a data area storing first and second stream files, the first stream file including presentation data, the second stream file including audio data, the presentation data being divided into at least one still picture unit, the at least one still picture unit including at least one still picture and associated graphic data, the at least one still picture unit not including the audio data, the still picture being reproduced as a slideshow, the audio data being reproduced with the slideshow; and a navigation area storing at least one playlist file and first and second clip information files, the at least one playlist file including at least one playitem and at least one sub-playitem, the at least one playitem indicating an in-point and an out-point of the first stream file for reproducing the presentation data, the at least one playitem further including duration information indicating whether to display at least one still picture for one of a finite and an infinite period of time, the at least one sub-playitem indicating an in-point and an out-point of the second stream file for reproducing the audio data, the first clip information file including a first entry point map, the first entry point map including at least one entry point mapping between a presentation time and a unit of the first stream file, the second clip information file including a second entry point map, the second entry point map including at least one entry point mapping between a presentation time and a unit of the second stream file, wherein the at least one still picture and associated graphic data in the still picture unit are reproduced synchronously based on the at least one playitem, wherein the audio data is reproduced independently from the at least one still picture unit and reproduced without interrupting reproduction of the still picture unit as the slideshow based on the at least one sub-playitem, wherein the stream files, the playlist file, and the clip information files are separate from each other and have different file extensions, wherein at least one of the first and second clip information files includes type information indicating that the audio data associated with the sub-playitem is for the slideshow.