Recording methods and devices for recording information on dual layer recordable disks
AssigneeKoninklijke Philips Electronics N.V.
InventorJohannus Leopoldus Bakx
Life of this patent
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Abstract
The invention relates to recording methods for recording information on a dual layer recordable disk, and to corresponding recording devices. In one such method and recording device the OPC-area is variably located on a layer of the disk. In a preferred embodiment the OPC-area is located relative close to the radius where the data stream switches from the first layer to the second layer. This reduced additional time required for jumping to a fixed OPC-area. Furthermore, in another such method and device the information to be recorded is equally divided over both layers of the dual layer disc. This avoids additional time required for finalization.
Claims8
A recording method for recording information on a dual layer recordable disk, the method comprising a step of performing an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, said Optimum Power Control procedure being performed in an OPC-area on the disk, characterized in that the Optimum Power Control procedure is performed in an OPC-area variably located on at least one of the layers (L0, L1) of the dual layer disk.
A recording method for recording information on a dual layer recordable disk, characterized in that the information to be recorded is substantially equally divided between a first layer (L0) and a second layer (L1) of the dual layer disk and is written to the first and second layer such that beyond a maximum radius (Rmax) no data is written on both layers (L0, L1).
Dependencies are inferred from the claim text.