Patent ID: 8055684
Filing Date: 2011-11-08
Classification: G06F

Abstract:
1. A contents-data editing apparatus comprising: means for generating playlists each instructing playback of an arbitrary portion or portions of one or ones selected from a contents-data piece or pieces recorded on a recording medium through the use of a first section information piece or pieces consisting of a first starting point information piece or pieces and a first ending point information piece or pieces indicating a starting point or points and an ending point or points of said arbitrary portion or portions, the playlists being assigned different identification information pieces respectively; means for generating a playlist management table or tables corresponding to the contents-data piece or pieces respectively, wherein the playlist management table or tables each indicate identification information pieces for playlists each instructing playback of an arbitrary portion of a corresponding contents-data piece; means for recording the playlists and the playlist management table or tables on the recording medium; means for detecting a playlist management table corresponding to a contents-data piece from which a part has been deleted; means for referring to the detected playlist management table and thereby identifying a first section information piece or pieces which are used by one or more of playlists related to identification information pieces indicated by the detected playlist management table and which are required to be updated in accordance with the deletion of the part from the contents-data piece; and playlist updating means for updating the identified first section information piece or pieces in accordance with the deletion of the part of the contents-data piece.