Patent ID: 8917976
Filing Date: 2014-12-23
Classification: G11B

Abstract:
1. An information processor, comprising: a recording portion configured to record a table describing in a list a correspondence relationship between reproduction information, the reproduction information being at least one PlayList, in accordance with which reality information, the reality information being at least one Clip, as reality of contents is specified to be reproduced and which is adapted to share the same reality information with any other suitable reproduction information, and the reality information to which the reproduction information refers, with respect to all of pieces of reproduction information recorded in a recording medium, in one file, in which, when the correspondence relationship indicates a plurality of individual PlayLists, the individual PlayLists being all Playlists recorded in the recording medium, referring to a plurality of different Clips, the different Clips to which the individual PlayLists refer are listed in the table with respect to the individual Playlists; a deleting portion configured to delete, by referring to the table, the Playlist which is the reproduction information instructed to be deleted, based on a determination whether a Clip referred to by the PlayList which is instructed to be deleted is referred to by other Playlist when the PlayList which is instructed to be deleted is determined to be a Real PlayList; and an updating portion configured to update said table when the reproduction information is deleted.