Optical disk, optical disk device, and optical disk recording method

摘要

The present invention relates to an optical disk having desired data recorded thereon by pits formed on an information recording surface, comprising: a desired visible image and said desired data being recorded on said information recording surface simultaneously; said desired visible image recorded on an area having a high reflectance value and an area having a low reflectance value formed on said information recording surface thereby, wherein said high reflectance area and said low reflectance area are formed dependent on a difference in ÄpitÜ width of said pits; and said desired data being recorded by changing the length of said pits.