JP2004311027A5 - - Google Patents

Claims (15)

An optical recording medium comprising a multi-layered recording layer each having a track for guiding recording light, and capable of recording user data in each recording layer,
Optical recording medium comprising identifying layer information as the information on the track each recording layer. 2. The optical recording medium according to claim 1, wherein layer information for identifying each recording layer is preformatted on the track itself as information on the track.   3. The optical recording medium according to claim 2, wherein the recording layer of the multilayer structure has an odd numbered layer and an even numbered layer, and groove tracks and land tracks are alternately set as recording positions.   4. The optical recording medium according to claim 2, wherein layer information for identifying each recording layer is preformatted as pits or grooves constituting a track. 5. The optical recording medium according to claim 2, wherein layer information for identifying each recording layer is preformatted on the track itself by phase modulation as information on the track.   6. The optical recording medium according to claim 1, wherein layer information for identifying each recording layer is provided on the track outside the data area. The track is an optical recording medium formed in a spiral shape for each recording layer,
The layer information for identifying each recording layer includes an inner peripheral portion when the spiral direction is directed from the inner peripheral side to the outer peripheral side during recording and reproduction on the optical recording medium, and an outer peripheral portion when the spiral direction is directed from the outer peripheral side to the inner peripheral side. The optical recording medium according to claim 1, wherein the optical recording medium is included in a portion. The track is an optical recording medium formed in a spiral shape for each recording layer,
The test writing area for determining the recording conditions is determined when the spiral direction goes from the inner circumference side to the outer circumference side when recording / reproducing on the optical recording medium. The optical recording medium according to claim 1, wherein the optical recording medium has an outer peripheral portion.   9. The optical recording medium according to claim 1, wherein layer information for identifying each recording layer is individually provided for each recording layer.   The optical recording according to any one of claims 1 to 9, wherein the first recording layer that performs recording first among the plurality of recording layers is a recording layer that is positioned closest to the recording light incident side. Medium.   The optical recording according to any one of claims 1 to 9, wherein the first recording layer that performs recording first among the plurality of recording layers is a recording layer that is positioned on the innermost side when viewed from the incident side of the recording light. Medium.   12. The optical recording medium according to claim 1, wherein each recording layer is transparent to a wavelength of recording light, and is laminated on a substrate on which the track for each recording layer is formed.   The optical recording medium according to claim 1, which conforms to the DVD + R standard and has two recording layers on one side.   The optical recording medium according to any one of claims 1 to 12, which conforms to the DVD + RW standard and has a single-sided two-layer recording layer. 15. A condition for reading out layer information for identifying each recording layer included in the optical recording medium as information on a track prior to a recording operation on the optical recording medium according to any one of claims 1 to 14 loaded in the optical information recording apparatus. A reading step;
A recording condition setting step for setting recording conditions for a recording layer to be recorded based on layer information for identifying each read recording layer;
A recording operation execution step for performing a recording operation on the recording layer to be recorded in accordance with the set recording conditions;
An information recording method comprising: