Optical disk and method and apparatus for recording and then pla

Details Optical disk and method and apparatus for recording and then pla Optical disk and method and apparatus for recording and then pla

1995-06-01

1998-08-11

Baker, Stephen M.

Excavating

371374, G11B 2018

Patent

active

057937796

ABSTRACT:
An optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm.+-.0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 .mu.m and 1.05 .mu.m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks; with the TOC information including addresses of start sectors recorded in the user tracks. The data (both user and TOC information) is encoded in a long distance error correction code having at least eight parity symbols, and is run length limited (RLL) modulated.

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