Optical disk, optical disk recording device, and optical disk playback device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKohei Nakata, Harumitsu Miyashita
Life of this patent
Estimating the term…
Abstract
An optical disk includes a disk management information area in which predetermined information is recorded in advance, and a recording system area in which information for identifying a recording system of the optical disk recorded in a predetermined position within a non-data area included in a recordable area is recorded. A method for accessing the optical disk is decided based on disk management information and the information for identifying a recording system.
Claims8
An optical disk comprising:
- a burst cutting area (BCA) in which disk management information, including a reference linear density used in a recording system of the optical disk, is recorded;
- and
- a recordable area, which is in an area different from the burst cutting area, in which identification information, which is used for identifying the recording system of the optical disk together with the disk management information by calculating a linear density that is different from the reference linear density, is recorded.
An optical disk playback device comprising:
- a burst cutting area (BCA) playback circuit that reads disk management information recorded in a burst cutting area on an optical disk in advance;
- and
- a system controller that acquires identification information for identifying a recording system of the optical disk recorded in a predetermined position within a non-data area included in a recordable area, which is an area different from the burst cutting area, of the optical disk, and decides a method for accessing the optical disk based on the disk management information read out by the burst cutting area playback circuit and the identification information.
An optical disk recording device comprising:
- a burst cutting area (BCA) playback circuit that reads disk management information recorded on an optical disk in advance;
- and
- a system controller that performs control such that identification information for identifying a recording system of the optical disk is recorded in a predetermined position within a non-data area included in a recordable area, which is an area different from a burst cutting area, of the optical disk in accordance with a method for accessing the optical disk decided based on the disk management information read out by the burst cutting area playback circuit.
Dependencies are inferred from the claim text.