Patent ID: 7339864
Filing Date: 2008-03-04
Classification: G11B

Abstract:
1. A recording condition setting method for setting a recording condition in a recording method for forming recorded marks by radiating light beam in accordance with a recording pulse condition that includes a plurality of elements and identifies rise and fall positions of a plurality of pulse rows for forming the recorded marks, the recording pulse condition being set with respect to each mark length or each combination of mark length and space length, the recording condition setting method comprising: a first search step in which a recording pulse condition for obtaining a reproduction result which fulfills predetermined signal quality is sought by performing testwrite and reproduction after uniformly changing predetermined recording pulse conditions corresponding to all mark lengths or all combinations; a second search step in which, if a reproduction result which fulfills predetermined signal quality is not obtained in the first search step, a recording pulse condition for obtaining a reproduction result which fulfills predetermined signal quality is sought by performing testwrite and reproduction after changing a predetermined recording pulse condition corresponding to at least one mark length or at least one combination; and a recording condition setting step, in which a recording pulse condition is determined in accordance with a search result of the second search step if the second search step is performed, or in accordance with a search result of the first search step if the second search step is not performed.