Patent ID: 8270271

Claim:
An optical recording medium comprising: a plurality of recording layers configured to store data, each recording layer having spiraling tracks for guiding recording light and arranged into an opposite track path multi-layer structure; and a test writing region provided at each of the recording layers for performing test writing to determine a recording condition for recording data on each of the recording layers which test writing region is provided at least at an inner diameter portion of a corresponding recording layer of the recording layers if a spiraling direction of a corresponding track of the corresponding recording layer is directed from an inner diameter side to an outer diameter side, and which test writing region is provided at least at an outer diameter portion of the corresponding recording layer if the spiraling direction of the corresponding track is directed from the outer diameter side to the inner diameter side, wherein first recording condition information is preformatted in one of the recording layers for deriving recording conditions for the one recording layer from an intensity condition and a waveform condition specified by second recording condition information preformatted in another one of the recording layers.