Patent ID: 7385899

Claim:
A recording and reproducing method for a dye-based recordable optical recording medium comprising: recording shortest marks on a recording layer by the use of one pulse which is more highly energized than pulses of each of marks other than the shortest marks, recording each of third shortest marks and still longer marks by the use of one pulse beam of which the rear edge is energized for a given length of time, and the energized pulse power is equal to the pulse power of each of second shortest marks, and irradiating cooling pulses onto the backwards of the respective pulse beams of all the marks during recording at an optical energy of 0.1mW or less for a given length of time, wherein the dye-based recordable optical recording medium comprises a substrate and the recording layer formed on the substrate, the substrate comprises a guide groove with a wobble formed thereon, and the recording layer comprises an organic dye as a main component.