Optical recording method and apparatus therefor.

摘要

Method and apparatus for recording information on an overwritable optical disk in which data is recorded on the disk with a writing beam spot while shifting the writing beam spot in a radial direction by a pitch smaller than the diameter of the writing beam spot for each rotation of the disk. In a reading operation, a reading beam having a shorter wavelength than that of the writing beam is used to read recorded data. <IMAGE>