Fast DVD program chain access

摘要

A method is proposed for fast accessing of a digital data stream representing video or audio information, in which parts of the stream information can be marked as temporarily erased. The method includes a first table (ORG_PGC) with address information of Stream Objects (SOB) stored on a medium and information about temporarily erased Stream Objects (SOB); A second table (UD_PGC) contains address information of user defined Stream Objects (SOB), wherein said second table (UD_PGC) contains program related information (PGn) and cells (C_Ns). Said program related information (PGn) includes a cell number of the first cell, which follows the last cell assigned to this program and wherein said cell includes the original cell number of the cells of said first table (ORG_PGC).