Patent ID: 8295139

Claim:
An optical recording method for directing a recording pulse train to an optical disc medium to form marks and spaces thereon and for recording information as information about edge positions of the marks and the spaces between the marks, the recording pulse train having been created by modulating laser light into plural power levels, the method comprising: coding to-be-recorded data into coded data consisting of a combination of the marks and the spaces; when the mark to be formed has a minimum mark length and when the recording pulse train for forming the mark having the minimum mark length has a single pulse with a peak power level, shifting a position of the second pulse edge counted from a starting edge of the recording pulse train for forming the marks and the spaces, depending on the result of the classifying the marks each having a minimum mark length on the basis of the minimum mark length and a space length of a preceding space and a succeeding space, to adjust the recording pulse train; and directing the recording pulse train to the optical disc medium to form the marks and the spaces thereon.