Data-coderingswerkwijze voor een optische schijf.

摘要

A data coding method of an optical disk having a dual spiral track including a first spiral and a second spiral which are disposed adjacent to each other and on which information can be simultaneously recorded. The data coding method includes the steps of utilizing a quaternary form depending on whether pits are formed or not on the first spiral and the second spiral, respectively, and using a modulated code for 8 bit-8 bit nonreturn-to-zero-inverted (NRZI) recording; and converting the 8-bit units into 10 channel bit units by adding 2 channel merging bits between the 8-bit units, and using a run-length-limited (RLL) code in which the minimum run of '0' data bits is 2.