Optical recording/reproducing apparatus for writing and/or reading data to and/or from optical recording medium having data recorded in pit trains of mutually different depths

摘要

In an optical disc recording medium having formed thereon a first pit train and a second pit train, these pit trains are formed to be different in pit depth from each other and meet following two relations:whereX: Phase depth of first pit trainY: Phase depth of second pit trainK and M: Arbitrary integers.