Method of recording/reproducing optical disk by sector link data including address information of unit data or a program related to sectors, disk including the sector link data, and apparatus for and method of reproducing the disk

摘要

An optical disk on which data are recorded with variable length DUT taken as a unit, the DUT being composed of a DUT header, sub video data, audio data, and main video data on a logical format and of a plurality of sectors on a physical format, each sector including as SLD (sector link data) a control area head sector number, an identification flag, a BOOK number, a story number, a program number, DUT identification, a next program head sector number, a previous program head sector number, a next DUT head sector number, a present DUT head sector number, and a previous DUT head sector number, all recorded thereon. Accordingly, there is eliminated a memory for storing a control table from the reproduction apparatus.