| http://www.w3.org/ns/prov#value | - The method of claim 1, wherein, when the recording mark has a length of nT and n is an integer, the first pulse of the box type recording pattern starts at a first position separated by a first distance from a time point that is 1 T from a start point for forming the recording mark or a second position separated by a second distance from the start point for forming the recording mark. 6.
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