Optical information recording medium, optical information recording/reproduction device, control method thereof, optical information recording/reproduction program, and computer-readable recording medium
A technology for information recording and recording media, which is applied in the directions of recording/reproducing by optical methods, optical record carriers, data recording, etc., and can solve the problems of reduced reflected light intensity, multi-layered information recording layers that are difficult to rewrite information, etc.
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Embodiment approach 1
[0107] Below, according to Figure 1 to Figure 9 Embodiment 1 of the present invention will be described.
[0108] [1. Structure of optical information recording medium]
[0109] first according to figure 1 The structure of the optical disc (optical information recording medium) 2 according to Embodiment 1 of the present invention will be described. figure 1 It is a conceptual schematic diagram of the optical disc 2 of this embodiment.
[0110] Such as figure 1 As shown, the optical disc 2 of this embodiment includes at least a RE / R layer 4 (first information recording layer) and a ROM 5 (second information recording layer). Information in each information recording layer can be read by reproducing light.
[0111] In the illustration of the optical disc 2, although there are only two information recording layers of the RE / R layer 4 and the ROM layer 5, there may be three or more information recording layers. In addition, the RE / R layer 4 may be either the RE layer or the...
Embodiment approach 2
[0230] Embodiment 2 of the present invention will be described below. In the above Embodiment 1, as figure 1 As shown, in the identification information recording field 41 of the optical disc 2, a Flag for interlayer movement different from normal identification information is recorded. The flag for interlayer movement is information indicating whether or not to allow interlayer movement of the light convergence point position of playback light from the identification information recording field 41 included in the RE / R layer 4 to the ROM layer 5 .
[0231] The optical disc device 1 confirms the setting content of the flag for interlayer movement, and executes interlayer movement. In this way, the processing time from obtaining the identification information pre-recorded in the identification information recording area 41 to starting the program recorded in the ROM layer 5 can be shortened.
[0232] Compared with Embodiment 1, Embodiment 2 of the present invention does not se...
Embodiment approach 3
[0258] Embodiment 3 of the present invention will be described below. In the above Embodiment 1, as figure 1 As shown, in the identification information recording field 41 of the optical disc 2, a Flag for interlayer movement different from normal identification information is recorded.
[0259] In contrast, in Embodiment 3, the flag for interlayer migration is not recorded in the identification information recording field 41 of the optical disc 2 but is recorded in the management information recording field 42 of the optical disc 2 .
[0260] Below, according to Figure 1~3 , Figure 11 , Embodiment 3 of the present invention will be described. The difference between the operation of the optical information reproducing apparatus of the present embodiment and the operation of the optical information reproducing apparatus of the first embodiment described above will be mainly described below. The same reference numerals are assigned to the same parts as those in Embodiment ...
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