OPTICAL DISK MEDIUM, RECORDING METHOD THEREFOR, AND RECORDING DEVICE

摘要

The purpose of the present invention is to provide an optical disk medium, an optical disk device, and an optical disk recording method capable of improving the accuracy of a recording position and increasing the recording density when recording and reproducing information to and from a grooveless disk. A pit structure representing address information is provided on either a land or a groove in a guide layer and the pit structure is detected when recording information so that the recording start position is determined.