Patent ID: 6791926
Filing Date: 2004-09-14
Classification: G11B

Abstract:
A method for obtaining a recording pulse parameter by reading standard recording pulse parameters from a writable optical disc to which are prerecorded standard recording pulse parameters defining recording pulse position information for each of plural possible mark length and space length combinations, correcting a standard recording pulse parameter and obtaining a best recording pulse parameter, said method comprising:performing a first test write to the optical disc using position information for any one combination selected from all mark length and space length combinations in the standard recording pulse parameters; reproducing the first test write and detecting a first jitter from the reproduced signal; adding a first specific amount of change to the position information for the one combination selected from all mark length and space length combinations in the standard recording pulse parameters, and performing a second test write to the optical disc using the changed position information; reproducing the second test write and detecting a second jitter from the reproduced signal; and comparing the first jitter and second jitter, and selecting the position information used for the test write with less jitter.