A method for recording / reproducing an optical disc by sector link data including address information of a program or unit data related to a sector, a method for reproducing a disc including disc link data and a disc and a method for reproducing the disc

摘要

The present invention relates to an optical disc on which data is recorded in accordance with a variable length DUT taken as a unit, wherein the DUT comprises a DUT header, sub-picture data, audio data, main picture data according to a logical format, An identification flag, a BOOK number, a story number, a program number, a DUT identifier, a next program head sector number, a previous program head sector number, and a previous program head sector number, which are all recorded as an SLD (setor link data) A next DUT identifier, a next program head sector number, a previous program head sector number, a next DUT head sector number, a DUT head sector number, and a previous DUT sector number. Whereby the memory for storing the control table from the playback apparatus can be excluded.