There is provided a method of annealing an optical recording medium formed
on a substrate having a land and a groove, comprising the steps of:
annealing one side wall between the land and the groove with a
predetermined laser power; moving the laser to another side wall by
allowing the laser to traverse one of the land and the groove with a
laser power for not annealing after the step of annealing is conducted;
and annealing the another side wall with the laser power.