Patent ID: 7483622
Filing Date: 2009-01-27
Classification: G11B,H04N

Abstract:
1. An information reproducing method for reproducing information from a recording medium, the information comprising; stream files including still pictures or sound; and PlayList files including a PlayList for ordering still pictures and sound to be played, and PlayListMarks that correspond to the still pictures, wherein each of the PlayLists has type information of presentation which indicates that the sound is continuously reproduced even when the reproduced still picture is switched, and each of the PlayLists has one or more PlayItems and SubPlayItems, each of the PlayItems has a start information indicating a presentation start time and an end information indicating a presentation end time of one or more still pictures, and each of the SubPlayItems have a start information indicating a presentation start time and an end information indicating a presentation end time of the sound, wherein each of the still pictures is compressed according to the MPEG format and is recorded as a file in form of a MPEG transport packet, and each of the still pictures is an intra frame compressed picture (I picture), said information reproducing method comprising the steps of: detecting said start information and said end information; controlling presentation time of said still picture in accordance with said detected start information and end information; independently reproducing still pictures of the PlayItems and sound of the the SubPlayItems, and controlling presentation without interrupting each other using the PlayListMark based on said type information of presentation.