Patent ID: 7791999

Claim:
A method of optimizing a writing condition of a super resolution optical recording medium, comprising: repeatedly writing test pattern data comprising a multi pulse sequence with the writing condition on the super resolution optical recording medium for forming a mark thereon, the length of the minimum mark being smaller than a resolution; comparing an error pattern binary signal detected by reproducing the written test pattern data with a correct pattern binary signal of the test pattern data; determining an optimum writing condition of the optical recording medium based on a result of the comparison; wherein the determining of the optimum writing condition comprises: repeatedly writing the test pattern data and simultaneously changing the written condition until the error pattern binary signal and the correct pattern binary signal are the same when the error pattern binary signal and the correct pattern binary signal are initially different; and determining the writing condition to be the optimum writing condition when the error pattern binary signal and the correct pattern binary signal are the same; further wherein the repeatedly writing the test pattern data comprises: determining a mark and at least one mark and/or space before and after the mark as a writing improvement pattern, when the mark has a difference error repeatedly occurring when comparing the error pattern binary signal with the correct pattern binary signal; changing the writing condition of the test pattern data with reference to the correct pattern binary signal; and writing the test pattern data with the changed writing condition according to the writing improvement pattern.