摘要:
An optical disk containing PG-rated and R-rated versions of the same motion picture. To minimize redundant storage of data, three types of video data blocks are provided in the same track, in an interleaved fashion - - - A-type blocks which contain material unique to version A, B-type blocks which contain material unique to version B, and C-type blocks which contain material common to both. A series of codes and pointers included in each block allow play of all common blocks, play of all A or B blocks depending on which version has been selected, and skipping over of the blocks which contain data unique to the unselected version. Play of adult-rated versions are automatically prevented if a parental lock option in the player has been keyed on. The disk may contain special software for identifying multiple versions of the same material where the selection criterion is one other than a rating.
摘要:
A system for playing a selected one of multiple subtitle tracks recorded in synchronized fashion with a motion picture on an optical disk. Individual subtitle tracks in numerous languages may be provided for the same motion picture, with or without multiple soundtracks. The user may select a soundtrack in his/her language if it is available. If not, subtitles can be displayed in a selected language.