Patent ID: 7643729

Claim:
An information reproducing method for reproducing information from a recording medium, the information comprising: a stream file including still pictures or sound; and a PlayList file including a PlayList for ordering still pictures and sound to be played, wherein the PlayList has type information of presentation which indicates that the sound is continuously reproduced even when the reproduced still picture is switched, and the PlayList has one or more PlayItems and SubPlayItems, each of the PlayItems has a start information indicating a presentation start time, an end information indicating a presentation end time of one or more still pictures, a still flag indicating whether the presentation is to be in a still state at the end of the reproduction, and a still duration indicating a duration time for maintaining the presentation in the still state at the end of the reproduction, and each of the SubPlayItems has a start information indicating a presentation start time, an end information indicating a presentation end time of the sound, said information reproducing method comprising the steps of: controlling presentation time of said still picture in accordance with said start information and end information; independently reproducing still pictures indicated by the PlayItems and sound indicated by the SubPlayItems, and controlling presentation without interrupting each other based on said type information of presentation.