WO2004086373A1 - 情報記録方法、情報記録装置、情報記録用プログラム及び記憶媒体 - Google Patents
情報記録方法、情報記録装置、情報記録用プログラム及び記憶媒体 Download PDFInfo
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- WO2004086373A1 WO2004086373A1 PCT/JP2004/003428 JP2004003428W WO2004086373A1 WO 2004086373 A1 WO2004086373 A1 WO 2004086373A1 JP 2004003428 W JP2004003428 W JP 2004003428W WO 2004086373 A1 WO2004086373 A1 WO 2004086373A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10861—Finalising a record carrier after a recording operation, e.g. to ensure compatibility with a ROM medium
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1229—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc lead-in area
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1231—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc lead-out area
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1267—Address data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1285—Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
- G11B2220/237—Multilayer discs, i.e. multiple recording layers accessed from the same side having exactly two recording layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/257—DVDs belonging to the plus family, i.e. +R, +RW, +VR
Definitions
- the present invention relates to information recording technology, and more particularly, to an information recording method and an information recording apparatus for recording information on a recordable information recording medium such as a dual-layer DVD + R (Digital Versatile Disc + Recordable).
- the present invention relates to an information recording program and a storage medium on which such a program is recorded.
- Recordable DVD discs include DVD + R, which is a recordable DVD disc, and DVD + RW, which is a rewritable DVD disc. These discs are recordable DVD discs with high and playback compatibility with single-sided, single-layer, read-only DVD discs. Technologies for speeding up and increasing the capacity of such recordable discs are being developed.
- Double-layer DVD + RJ a single-sided dual-layer DVD + R disc
- the recording capacity of a dual-layer DVD + R is 8.4 Gbytes, which is almost twice the data capacity of the conventional single-layer DVD + R of 4.7 Gbytes.
- the read data can be read by a DVD player or DVD-ROM drive that can play back a single-sided, dual-layer read-only DVD disk, where the single-sided, dual-layer, read-only DVD disk has a second-layer track.
- PTP method the radial positions of the addresses where the data areas of the first and second layers start are the same, and both start from the physical address 300 00H, and lead-out after the data area. The area is Be placed.
- the radial position of the address where the data area of the second layer starts is equal to the radial position of the address where the data area of the first layer ends.
- the physical address at the start position of the data area of the second layer is an address obtained by bit-inverting the end address of the data area of the first layer.
- ⁇ the difference area becomes the lead-out area.
- the difference area D1—D2 is read out.
- Area As described above, in an area where data is recorded on one recording layer, data is also recorded on a corresponding area of the second layer.
- the reading laser happens to focus on the second layer when seeking to the target address
- the data is recorded on the second layer at the same position. If you don't have it, you can't get address information! This is to avoid problems such as the occurrence of a defect such as /, and as a result the data in the first layer cannot be reproduced.
- the logical addresses in the two-layer DVD are allocated continuously from the start address of the data area of the first layer.
- the logical address is continuous from the end address of the data area of the first layer to the start address of the data area of the second layer.
- the data recording of the user ends in the middle of the data area of the second layer or without recording the second layer at all.
- the unrecorded area remains in the data area of the second layer If left unchecked, the disc layout will be incompatible with the read-only dual-layer DVD disc described above.
- a general object of the present invention is to provide a useful and improved information recording technique which solves the above-mentioned problems.
- a more specific object of the present invention is to provide a recording operation for an information recording medium having a plurality of recording layers, in which the recording is completed in the middle of the data area of the recording layer and an unrecorded area is generated.
- the purpose is to prevent loss of compatibility with a dedicated information recording medium.
- a plurality of recording layers each having a data area for recording user data, and a criterion for determining a range of a position of the data area in each recording layer.
- the predetermined data for example, the read attribute and the user data attribute
- the predetermined data are stored in the unrecorded area generated in the second recording layer.
- a readout area or an intermediate area is set following the user data recording area in the first recording layer.
- the data area in the second recording layer is an area in the ⁇ g position corresponding to the start and end addresses of the data area in the first recording layer. That is, by determining the data area of the first recording layer, the range of the data area of the second recording layer is determined.
- a predetermined unrecorded area that is, predetermined data (eg, dummy data having a lead-out or user data attribute) is recorded in a predetermined unrecorded area after the data area in the second compilation.
- predetermined data eg, dummy data having a lead-out or user data attribute
- a predetermined unrecorded area is filled with the data, so that a read-only information recording medium having a plurality of recording layers is provided. Compatibility with can be maintained. Further, for example, when the user reproduces data of the first recording layer, if the read laser happens to be focused on the second recording layer by seeking to the target address, the second recording layer at the same position No data is recorded in
- the predetermined data to be recorded in the predetermined unrecorded area is a lead-out. In this case, this can be easily realized by enlarging and utilizing a readout (Lead-out) originally recorded after the data area as predetermined data for filling a predetermined unrecorded area.
- the predetermined unrecorded area is an unrecorded area subsequent to the user data area in which the user data was recorded. In this case, all the predetermined unrecorded areas until the read-out (Lead-out) area used for the original purpose to specify the end address of the recording layer are used as the lead-out. It can be easily realized by filling in
- the information recording medium is an information recording medium recorded by a parallel track path (PTP) method
- the predetermined unrecorded area is defined by a first recording layer from an end address of a user data recording area. May be an area up to the address in the second recording layer corresponding to the same radial position as the end address of the readout area in the above.
- an unrecorded ⁇ g area in which the lead-out (Lead-out) is to be embedded as predetermined data in the PTP method becomes apparent.
- the information recording medium is an information recording medium recorded by an opposite track path (OTP) method
- the predetermined unrecorded area is a first address from an end address of the user data recording area.
- the address in the second recording layer corresponding to the same radial position as the start address of the lead-in area in the recording layer It is good also as being the area
- the predetermined data to be recorded in the predetermined unrecorded area may be dummy data having a user data attribute. In this case, by using dummy data having a user data attribute as the predetermined data for filling the predetermined unrecorded area, the data is read out as the predetermined data.
- Lead-out can be given flexibility as predetermined data, and lead-out itself is the original purpose for specifying the end address of the recording layer. It can be used as a normal user data record including dummy data.
- the predetermined unrecorded area is an area excluding a user data recording area in which user data has been recorded, of the data area of the second recording layer.
- the lead-out itself can be reduced. It can be used for the original purpose of defining the end address of the recording layer, and can be in a state close to the most normal user data recording including dummy data.
- the information recording medium is an information recording medium recorded by a parallel track path (PTP) method
- the predetermined unrecorded area is determined from the end address of the user data recording area in the first recording layer. It may be an area up to the address in the second recording layer corresponding to the same radial position as the start address of the lead-out area.
- PTP parallel track path
- the information recording medium is an information recording medium recorded by an opposite track path (OTP) method
- the predetermined unrecorded area has a radial position such as an end address force of the user data recording area. It may be an area up to the address in the second recording layer corresponding to the same radial position as the end address of the lead-in area in the first recording layer.
- an unrecorded area in which dummy data is to be embedded as predetermined data in the case of the OTP method becomes clear.
- a lead-out may be recorded in an area following a predetermined unrecorded area.
- dummy data is recorded in an area other than the user data recording area in which the user data was recorded, and a lead-out (Lead-out) is recorded in a subsequent area.
- the lead-out itself will be used for the original purpose to define the end address of the recording layer, and should be in a state close to the most normal user data recording including dummy data. Can be.
- the predetermined data to be recorded in the predetermined unrecorded area is a dummy data having a user data attribute and a lead-out.
- the dummy data having the user data attribute may be all zero data.
- the simplest and general 0 data can be used as dummy data.
- the information recording medium may be an information recording medium compliant with the DVD + R standard. That is, the information recording method according to the present invention is applied to an information recording medium conforming to the DVD + R standard in which the presence of an unrecorded ⁇ IS area is problematic in terms of compatibility with a read-only information recording medium having a plurality of recording layers. It is suitable for.
- the above-described invention can be applied to an information recording device, an information recording program, and a storage medium storing the information recording program, and similar effects can be obtained.
- FIG. 1 is a block diagram showing a schematic configuration of an optical disk device according to one embodiment of the present invention.
- 2A, 2B, and 2C are schematic diagrams showing the layout of a read-only DVD disc.
- FIG. 3A is a schematic diagram showing a layout of an unrecorded PTP dual-layer DVD + R.
- FIG. 3B is a schematic diagram showing a layout of a PTP two-layer DVD + R in a case where the recording of the user data is completed at the address X of the second eyebrow (layer 1).
- FIGS. 3C and 3D are schematic diagrams showing the layout of a double-layer DVD + R of the PTP system when the recording of the user data is completed in the middle of the layer 1 in the recording by the recording method according to the present invention.
- FIG. 3E is a schematic diagram showing a layout of a PTP two-layer DVD + R in a case where the recording of the user data is completed at the address Y of the first layer (layer 0).
- FIGS. 3F, 3H, and 3G are schematic diagrams showing the layout of a PTP-type dual-layer DVD + R when recording of user data is completed in the middle of layer 0 in recording by the recording method according to the present invention.
- FIG. 4A is a schematic diagram showing the layout of an unrecorded OTP double-layer DVD + R.
- Fig. 4 is the OTP when the recording of user data is completed at the address X of the second layer (layer 1).
- FIG. 3 is a schematic diagram showing a layout of a dual-layer DVD + R of the system.
- FIGS. 4C and 4D are schematic diagrams showing the layout of an OTP double-layer DVD + R when the recording of the user data is completed in the middle of Layer 1 in the recording by the recording method according to the present invention.
- ⁇ Figure 4E is a schematic diagram showing the layout of an OTP double-layer DVD + R when recording of user data is completed at the address Y of the first layer (layer 0).
- FIGS. 4F, 4H, and 4G are schematic diagrams showing the layout of the OTP double-layer DVD + R when the recording of the user data is completed in the middle of the layer 0 in the recording by the recording method according to the present invention.
- FIG. 5 is a flowchart of a recording process when predetermined data is read out.
- FIG. 6 is a flowchart of a recording process when predetermined data is used as dummy data.
- FIG. 1 is a block diagram showing a schematic configuration of an optical disc device 1 as an information recording device according to one embodiment of the present invention.
- the optical disk device 1 includes a spindle motor 3 for rotating and driving an optical disk 2 as an information recording medium, an optical pickup device 4, a laser control circuit 5, a motor driver 6, a reproduction signal processing circuit 7, a servo controller 8, a buffer RAM 9 , Buffer manager 10, interface 11, ROM 12, CPU 13, and RAM 14. Note that the arrows shown in FIG. 1 show a part of the flow of signals and information, and do not represent all the connection relationships of each block.
- the optical disc 2 in this embodiment is a two-layer DVD + R conforming to the DVD + R standard.
- the optical pickup device 4 includes a semiconductor laser as a light source, an objective lens for guiding laser light emitted from the semiconductor laser to the recording surface of the optical disk 2 and guiding return light reflected on the recording surface to a predetermined light receiving position. It has an optical system, a photodetector arranged at a light receiving position to receive return light, and a drive system (a focusing actuator, a tracking actuator, a seek motor, etc.) (all not shown). You.
- the light receiver outputs a current (current signal) corresponding to the amount of received light to the reproduction signal processing circuit 7.
- the servo controller 8 generates a control signal for controlling the focusing actuator of the optical pickup device 4 based on the focus error signal, and generates a control signal for controlling the focusing actuator of the optical pickup device 4 based on the track error signal. A control signal for controlling the data.
- the servo controller 8 outputs these control signals to the motor driver 6.
- the motor driver 6 controls the focusing actuator and the tracking actuator of the optical pickup device 4 based on a control signal from the servo controller 8. Drive. Further, the motor driver 6 controls the spindle motor 3 based on an instruction from the CPU 13 so that the linear velocity of the optical disk 2 is constant. Further, the motor driver 6 drives a seek motor for the optical pickup device 4 based on an instruction from the CPU 13 to move the optical pickup device 4 in a radial direction toward a target track of the optical disc 2.
- the interface 11 is a two-way communication interface with a host (for example, a personal computer PC) serving as an external device.
- a host for example, a personal computer PC
- the CPU 13 together with the ROM 12 and the RAM 14 constitute a microphone computer (computer) provided in the optical disc device 1.
- the CPU 13 controls the operation of each unit described above according to a program stored in the ROM 12 and temporarily stores data and the like necessary for the control in the RAM 14.
- the program stored in the ROM 12 is loaded (installed) into a main memory (not shown) of the CPU 13.
- the present embodiment relates to a recording process control when a dual-layer DVD + R, which is an optical disc 2, is mounted on the optical disc apparatus 1 and there is a user data recording request from the host.
- a dual-layer DVD + R which is an optical disc 2
- the layout of a read-only DVD disc which is a premise of the DVD + R standard, will be described.
- FIGS. 2A, 2B, and 2C are diagrams showing examples of the layout of a read-only DVD disc.
- Figure 2A shows a single-sided, single-layer disc (hereinafter, referred to as a "single-layer disc")
- Figure 2B shows a PTP-type, single-sided, dual-layer disc (hereinafter, referred to as a "PT ⁇ disc”)
- Figure 2C shows a single-sided, dual-layer OTP disc (hereinafter referred to as “OTP disc”).
- a DVD disc basically has an information area consisting of a lead-in area, a data area, and a lead-out area.
- Single-layer discs and PTP discs have an information area for each recording layer.
- the OTP disc consists of one information area, and has a middle area behind the data area of each recording layer. I do.
- Layers 0 and 1 of the single-layer disc and PTP disc and layer 0 of the OTP disc play data from the inner circumference to the outer circumference, and layer 1 of the OTP disc plays data from the outer circumference to the inner circumference. Is played.
- a continuous physical address (Physical Sector Number) from the read-in area to the read-out area is allocated to each recording layer of the single-layer disc and the PTP disc. Even in the OTP disk, a continuous physical address is allocated from the lead-in area to the intermediate area of the layer 0. The physical address increases to the area. That is, the start address of the data area in layer 1 is an address obtained by bit-inverting the end address in layer 0.
- the start address and end address of the lead-in area, the start address of the data area, and the end address of the read area in the PTP disk are located at the same radius position, and the start address of the lead-out area, that is, the data
- the end address of the area may be different for each recording layer. If the end address of the data area is different, the read address is recorded in the area of the difference.
- the start address of the lead-in area and the end address of the read-out area, the end address of the data area of layer 0 and the start address of the data area of layer 1, and each recording are at the same radius position, and the start address of the data area of layer 0 and the end address of the data area of layer 1 do not always match. Even in the case of an OTP disk, a read pointer is recorded in the difference area.
- FIG. 3A shows a layout of a two-layer DV + R in an unrecorded state in which no recording is performed.
- Each of the first and second recording layers, Layer 0 and Layer 1 has a lead-in area, a data area (Data Area), and a read-out area.
- A is the lead-in start address
- B is the start address of the data area
- C is the start address of the read-out area
- D is the read address.
- the position of the end address of the OUT area is shown. Addresses A to D in the respective recording layers (layers 0 and 1) are located at the same radial position on the optical disk 2.
- FIG. 3B shows a layout of the two-layer DVD + R when the recording of the user data is completed at the address X of the second layer (layer 1).
- FIGS. 3C and 3D show the layout of a two-layer DVD + R when the recording of the user data is completed in the middle of the layer 1 in the recording according to the recording method of the present invention.
- the disk layout is the same as that of a single-sided, dual-layer read-only DVD-ROM. Therefore, even if the recording of user data is completed in the middle of the data area of the second layer (Layer 1), compatibility with the single-sided, dual-layer read-only DVD-ROM can be maintained without any problem. it can.
- the data of the second recording layer (layer 1) is used.
- the lead-out may be recorded in the layer 1 lead-out area (addresses C to D).
- addresses A to B are a lead-in area
- addresses B to C are a data area
- addresses C to D are a lead-out area.
- FIG. 3E shows a layout of a two-layer DVD + R when the recording of the user data is completed at the address Y of the layer 0.
- FIGS. 3F, 3H, and 3G show the layout of a dual-layer DVD + R when the recording of the user data is completed in the middle of layer 0 in the recording by the recording method according to the present invention.
- the read format area is the area from Y to E in the figure.
- the data area of layer 1 is from B to Y, and the lead-out area is from ⁇ to ⁇ .
- layer 0 is the recording layer that is a reference for determining the range of the position of the data area, and this layer. By determining the data area of, the range of the data area of layer 1 is determined.
- an unrecorded area after the user data recording area is recorded by lead-out.
- FIG. 3G shows a recording method according to another embodiment of the present invention.
- dummy data having a user data attribute and a lead-out are recorded in a predetermined unrecorded area.
- the lead-out when no user data is recorded in the second layer, the lead-out may be recorded after recording a part of the unrecorded area with dummy data having the user data attribute.
- the raw data of user data attribute 1 "is recorded up to address F: ⁇ , the lead-out is recorded from addresses F to E. Therefore, in layer 0, addresses A to B are in the lead-in area, address B to Y are the data area, addresses Y to E are the lead-out areas, whereas in layer 1, addresses A to B are the lead-in area, addresses B to F are the data area, and addresses F to E.
- the disc layout is the same as that of a single-sided, dual-layer DVD-ROM for playback. Even if the recording of user data is completed in the middle of the data area of the second layer, the dual-layer DVD-ROM (PTP ) Can be maintained.
- the user data recording area in which the recording of the user data is performed among the data areas of the recording layer is used. Record the dummy data with the data attribute in the area excluding. In this example, no user data is recorded in the layer 1 data area, so the area from the start address B to the address Y of the layer 1 data area is a predetermined unrecorded area. Recorded with. At this time, the lead-out may be recorded in the layer 1 lead-out area (addresses Y to E).
- addresses A to B are the lead-in area
- addresses B to Y are the data area
- addresses Y to E are the lead-out area.
- the same disk layout as a single-sided, dual-layer read-only DVD-ROM is used, and compatibility with a dual-layer DVD-ROM is possible even when recording of user data is completed in the middle of the data area of the first layer (layer 0). Sex can be maintained.
- an information recording method of the present invention applicable to a dual-layer DVD + R (optical disc 2) by the OTP method based on the format of a read-only DVD disc will be described with reference to FIGS. 4A to 4H. I do.
- FIG. 4A to 4H optical disc 2
- FIG. 4A shows a layout of an OTP double-layer DVD + R in an unrecorded state where no recording is performed.
- layer 0 which is the first recording layer
- a lead-in area, data area, and intermediate area exist from the periphery of the disc.
- layer 1 an intermediate area, a data area, and a lead-out area exist from the periphery of the disk.
- A is the start address of the read-in area
- B is the start address of the data area of Layer
- C is the opening address of the intermediate area of Layer
- D is the end address of the intermediate area of Layer 0.
- D ' is the start address of the intermediate area of Layer 1
- C' is the start address of the data area of Layer 1
- B ' is the start address of the read-out area
- A' is the end address of the lead-out area. Is shown.
- a and A ', B and B', C and D and D ' are bit-inverted values, and are located at the same position on the optical disk 2.
- FIG. 4B shows the layout of the OTP dual-layer DVD + R when the recording of the user data is completed at the address X of the second layer (layer 1).
- FIGS. 4C and 4D show the layout of an OTP double-layer DVD + R when user data recording is completed in the middle of the layer 1 data area in the recording by the recording method according to the present invention. I have.
- the disk layout is the same as that of a single-sided, dual-layer read-only DVD-ROM. Therefore, even if the recording of the user data is completed in the middle of the data area of the second layer (layer 1), compatibility with the single-sided, dual-layer read-only DVD-ROM can be maintained without any problem.
- the recording of the user data is completed in the middle of the data area of the layer 1, in another embodiment, as shown in FIG. 4D, the user area of the data area of the second recording layer (layer 1) is used.
- the dummy data (Dummy Data) having the data attribute, for example, all 0 data is recorded in the area except the user data recording area where the data recording was performed.
- addresses ⁇ to ⁇ are the lead-in area
- addresses B to C are the data area of layer
- addresses C to D are the intermediate area of layer
- addresses D 'to C' are the intermediate area of layer 1.
- the area from address C 'to the area ⁇ ' is the layer 1 data area
- the area from address A 'to the lead-out area is the lead-out area.
- FIG. 4E shows a layout of the two-layer DVD + R of the OTP system when the recording of the user data is completed at the position of the address Y of the first layer (layer 0).
- FIGS. 4E to 4H show the layout of an OTP-type dual-layer DVD + R when recording of user data is completed in the middle of Layer 0 (first recording layer) in recording by the recording method according to the present invention. Is shown.
- the area from address Y to E is the intermediate area of layer 0 in the figure.
- the middle area of the second layer (layer 1) is from E 'to Y' in the figure, and the data area of layer 1 is from Y 'to B' in the figure. That is, by determining the data area of layer 0, the range of the data area of layer 1 is determined.
- an unrecorded area after the user data recording area is recorded by a read write.
- FIG. 4G shows a recording method according to another embodiment of the present invention.
- dummy data having a user data attribute and a lead-out are recorded in a predetermined unrecorded area. If no user data is recorded in the second layer, as shown in Fig.4G, after recording a part of the unrecorded area with dummy data of the user data attribute, a readout is recorded in the remaining area You may.
- the read pointer is recorded from address F 'to ⁇ '.
- addresses ⁇ to ⁇ are the lead-in area
- addresses B to Y are the data area of layer
- addresses Y to E are the intermediate area of layer
- addresses ⁇ 'to the intermediate area of layer 1
- the area from address ⁇ 'to is the layer 1 data area
- the area from address to is the readout area.
- the user data recording area in which the user data has been recorded in the data area of the recording layer is used.
- the area to be excluded is defined as a predetermined unrecorded area, and predetermined data is recorded in this area as dummy data having a data attribute.
- the area up to the start address Y 'and the address B' of the data area of the layer 1 is a predetermined blank area ⁇ S area.
- the lead-out may be recorded in the read-out area (addresses B 'to A').
- addresses A to B are the lead-in area
- addresses B to Y are the data area of layer
- addresses Y to E are the intermediate area of layer
- address Y The area from 'to is the data area of Layer 1, and the areas from B' to A 'are the lead-out area.
- the start address of the lead-in area A
- end address of lead-out area ⁇ '.
- "" indicates a bit-reversed value.
- This process is performed as a process when a user data recording request is received from the user through the host (step S 1 ⁇ ), and after recording the requested address based on the request, (Step S2), it is checked whether there is another recording request (Step S3). If there is a data recording request (Step S3, No.), the requested data recording is continued (Step S2). Meanwhile, you When the recording of the user data is completed (N in step S3), the physical address X at which the recording of the user data is completed is obtained (S4).
- the processing of N in step S3 and the processing of step S4 are executed as address information acquisition means or an address information acquisition function for acquiring recording-completed address information at the time of data recording completion.
- step S6 recognizes the range of the unrecorded area in Layer 1 Not recorded ⁇ ! This is executed as a leak determination means or an unrecorded area. Thereafter, the lead-out is recorded with the area between addresses Y and Z as an unrecorded area (step S10), and the processing ends (S11).
- the processing of step S10 is executed as a recording processing means or a recording processing function.
- steps S12 to S15 described above is executed as an unregistered means or an unrecorded area setting function that recognizes the range of the unrecorded area in layer 1. Thereafter, the lead-out is recorded with the area between addresses Y and Z as the unrecorded ⁇ s area (step S10), and the process ends (step S11).
- the processing in step S10 is executed as a recording processing means or a recording processing function. Further, the processing of steps S3 to S10 described above is executed as unrecorded area data embedding means or unrecorded ⁇ II area data embedding processing.
- the recording of the lead-in area, the lead area in the layer 0, or the intermediate area is not described, but the recording of the user data is completed and the optical disc 2 is ejected. It is sufficient that the information is recorded in a predetermined area during the period. If the address X is an address in layer 0, that is, if no user data is recorded in layer 1, as described above, a part of the unrecorded area is a dummy data of the user data attribute. After recording in the above, the readout may be recorded.
- FIGS. 3C, 3D, 3F, 3G, and 3H and FIGS. 4C, 4D, 4F, 4G, and 4H the user in the data area of the recording layer is used.
- the recording process executed by the CPU 13 in the recording of the user data and the area other than the area where the data recording was performed as the predetermined unrecorded area and the predetermined data as dummy data having the data attribute is shown in FIG. This will be described with reference to the flowchart shown in FIG. In the following description, it is assumed that the values shown in FIGS. 3A to 3H and FIGS. 4A to 4H are used as the addresses as in the case described above.
- steps S6 and S21 to S23 described above confirms the range of the unrecorded area in layer 1. This is executed as a setting means or an unrecorded setting function. After that, dummy data is recorded with these addresses ⁇ to ⁇ as blank areas (step S24), and then the lead-out is recorded in the lead-out area (step S25), and processing is performed. Is terminated (S26).
- the processing of step S24 is executed as a recording processing means or a recording processing function.
- steps S27 to S30 described above is executed as unrecorded fiber setting means for certifying the range of the unrecorded area in layer 1 or as an unrecorded setting function. Thereafter, dummy data is recorded with these addresses Y to Z as an unrecorded area (step S24), and subsequently, a lead letter is recorded in the lead-out area (step S25), and the process ends. (Step S26).
- the processing of step S24 is executed as a recording processing means or a recording processing function. Further, the processing of steps S3 to S25 described above is executed as unrecorded data embedding means or unrecorded data embedding processing.
- the recording of the lead-in area, the read-out area in the layer 0 or the intermediate area is not particularly described, but the recording of the user data is completed and the optical disc 2 is ejected. It is good if it is recorded in a predetermined area until it is completed.
- the above-described embodiment is an example in which the information recording medium is a dual-layer DVD + R, but the present invention is not limited to the application to a dual-layer DVD + R. That is, the book The invention includes a first recording layer having a plurality of recording layers each having a data area for recording user data, and a first recording layer serving as a reference for determining a range of a position of the data area in each recording layer; The same can be applied to an information recording medium having a second recording layer excluding the above.
- the information recording method described above can be described as a program executable by a computer, stored in the ROM 12, and executed by the CPU 13.
- a program executable by a computer, stored in the ROM 12, and executed by the CPU 13.
- such a program can be recorded on the optical disk 2, read, stored in the RAM 14, and executed by the CPU 13.
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Abstract
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Priority Applications (4)
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US10/934,730 US7072255B2 (en) | 2003-03-24 | 2004-09-07 | Information recording method, information recording apparatus, information recording program and recording medium storing information recording program |
US11/438,219 US7508740B2 (en) | 2003-03-24 | 2006-05-23 | Information recording method, information recording apparatus, information recording program and recording medium storing information recording program |
US12/368,676 US8009538B2 (en) | 2003-03-24 | 2009-02-10 | Information recording method, information recording apparatus, information recording program and recording medium storing information recording program |
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JP2003080495A JP3710790B2 (ja) | 2003-03-24 | 2003-03-24 | 情報記録方法及びその装置 |
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JP2004295950A (ja) * | 2003-03-25 | 2004-10-21 | Ricoh Co Ltd | 光情報記録媒体、光情報記録装置、情報処理装置、光情報記録方法、プログラム及び記憶媒体 |
JP2004295948A (ja) * | 2003-03-25 | 2004-10-21 | Ricoh Co Ltd | 光情報記録装置、情報処理装置、光情報記録媒体、光情報記録方法、プログラム及び記憶媒体 |
JP2004310972A (ja) * | 2003-03-25 | 2004-11-04 | Ricoh Co Ltd | 情報処理装置、情報記録装置、情報処理システム、情報記録方法、情報記録用プログラム及び記憶媒体 |
JP3856449B2 (ja) * | 2003-04-24 | 2006-12-13 | 株式会社リコー | 再生方法、プログラム及び記録媒体、並びにドライブ装置 |
KR20050001976A (ko) * | 2003-06-28 | 2005-01-07 | 삼성전자주식회사 | 정보 저장 매체 |
-
2003
- 2003-03-24 JP JP2003080495A patent/JP3710790B2/ja not_active Expired - Fee Related
-
2004
- 2004-03-11 TW TW093106512A patent/TWI289838B/zh not_active IP Right Cessation
- 2004-03-15 EP EP04720765A patent/EP1607944A4/en not_active Ceased
- 2004-03-15 CN CNB2004800070901A patent/CN100550141C/zh not_active Expired - Fee Related
- 2004-03-15 WO PCT/JP2004/003428 patent/WO2004086373A1/ja active Application Filing
- 2004-09-07 US US10/934,730 patent/US7072255B2/en not_active Expired - Lifetime
-
2006
- 2006-05-23 US US11/438,219 patent/US7508740B2/en not_active Expired - Lifetime
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2009
- 2009-02-10 US US12/368,676 patent/US8009538B2/en not_active Expired - Fee Related
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Cited By (7)
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US7324422B2 (en) | 2003-09-19 | 2008-01-29 | Ricoh Company, Ltd. | Information storage method that assures compatibility of writable medium with read only medium |
EP1713072A1 (en) * | 2004-12-27 | 2006-10-18 | Sony Corporation | Data recording method, data recording device, and imaging device |
EP1713072A4 (en) * | 2004-12-27 | 2009-02-11 | Sony Corp | DATA LOGGING METHOD, DATA RECORDING ARRANGEMENT AND ILLUSTRATIVE SYSTEM |
US7805059B2 (en) | 2004-12-27 | 2010-09-28 | Sony Corporation | Data recording method, data recording apparatus and image pick-up apparatus |
US7164640B2 (en) | 2005-03-01 | 2007-01-16 | Ricoh Company, Ltd. | Information storage method that assures compatibility of writable medium with read only medium |
CN101171637B (zh) * | 2005-05-06 | 2011-09-07 | 索尼株式会社 | 记录装置及方法 |
CN1971723B (zh) * | 2005-11-25 | 2010-05-19 | 三洋电机株式会社 | 驱动器验证方法 |
Also Published As
Publication number | Publication date |
---|---|
US20090147644A1 (en) | 2009-06-11 |
US7508740B2 (en) | 2009-03-24 |
TW200425104A (en) | 2004-11-16 |
CN100550141C (zh) | 2009-10-14 |
JP3710790B2 (ja) | 2005-10-26 |
EP1607944A4 (en) | 2008-04-02 |
US20060209654A1 (en) | 2006-09-21 |
EP1607944A1 (en) | 2005-12-21 |
JP2004288308A (ja) | 2004-10-14 |
US7072255B2 (en) | 2006-07-04 |
US8009538B2 (en) | 2011-08-30 |
US20050030852A1 (en) | 2005-02-10 |
TWI289838B (en) | 2007-11-11 |
CN1762002A (zh) | 2006-04-19 |
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