JP2006172566A - Recording method, program, recording medium, and information recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure compatibility with a reproduction-only optical disk in a short period of time. <P>SOLUTION: Upon reception of an optical disk unloading request, when a data area is divided into an AV data area and a PC data area (step 403) and when the size of an unrecorded area between the AV data and an LO area is equal to or larger than a preset threshold value (step 405), read-out attribute data is recorded in a 64 ECC block immediately after the AV data recorded in the AV data area (step 407). Consequently, even when an unrecorded part is left after the read-out attribute data, information recorded in the AV data area is correctly reproduced by using a DVD-ROM drive unit. In other words, compatibility with the reproduction-only optical disk can be secured in a short period of time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording method, a program and a recording medium, and an information recording apparatus, and more specifically, a recording method and information recording apparatus for recording information on an optical disc, a program used in the information recording apparatus, and the program recorded therein. The present invention relates to a recording medium.

  Personal computers (hereinafter abbreviated as “personal computers”) have come to be widely used for document creation, spreadsheets, database data management, etc., along with improvements in function and price reduction. A CD (compact disc) is used as an information recording medium for recording data created on a personal computer, data used on a personal computer (hereinafter also referred to as “PC data”), and data equivalent to about 7 times the CD. An optical disc such as a DVD (digital versatile disc) that can be recorded on a disc having the same diameter as the optical disc has been attracting attention, and an optical disc device has become widespread as one of information recording devices for recording information on an optical disc. It was.

  As recordable DVDs, DVD + R, DVD + RW, DVD-R, DVD-RW, and DVD-RAM are commercially available.

  With the advancement of digital technology and the improvement of data compression technology, video data (hereinafter also referred to as “AV data”) has been recorded on optical disks.

  In recent years, in consideration of user convenience, it has been proposed to record AV data and PC data mixedly on the same disk (see, for example, Patent Document 1). In addition, standardization of optical discs capable of mixing AV data and PC data has been energetically performed. According to this, an area in which AV data is recorded (hereinafter referred to as “AV data area”) is provided in the inner periphery of the optical disc, and an area in which PC data is recorded in the outer periphery (hereinafter referred to as “PC data area”). Is provided. For example, an optical disc on which AV data and PC data are recorded together can reproduce AV data when set in a reproduction environment (for example, a DVD player) capable of reproducing AV data. AV data and PC data can both be reproduced when set in an optical disk device connected to the PC.

  By the way, in order to ensure compatibility with a read-only DVD-ROM, it is necessary that there is no unrecorded portion between the lead-in and lead-out. Therefore, when compatibility with DVD-ROM is required, recording of user data including AV data and PC data is completed, and if there is a disc ejection request, AV data and PC data are It is necessary to record the dummy data in the unrecorded part between. In this case, when the data amount of the AV data is small and the size of the unrecorded portion between the AV data and the PC data is large, it takes a long time from when the user makes a discharge request until the actual discharge. It may take time, but there is a risk.

  A method of adding dummy data to user data recorded on an information recording medium to ensure compatibility has been proposed (see Patent Document 2). However, in this method, AV data, PC data, When the size of the unrecorded part between the two is large, it is difficult to shorten the time from when the user makes a discharge request until the user actually discharges.

JP 2002-117629 A JP 2003-317399 A

  The present invention has been made under such circumstances, and a first object of the present invention is to provide a recording method capable of ensuring compatibility with a reproduction-only optical disk in a short time.

  The second object of the present invention is executed by a control computer of an information recording apparatus, and a program capable of ensuring compatibility with a reproduction-only optical disk in a short time and the program recorded therein It is to provide a recording medium.

  A third object of the present invention is to provide an information recording apparatus capable of ensuring compatibility with a reproduction-only optical disk in a short time.

  The invention according to claim 1 is a recording method for recording information on a recording surface of an optical disc using an information recording device, and when there is an unrecorded portion in the middle of user data recorded on the recording surface. In addition, the recording method includes a step of recording data having a lead-out attribute in an amount smaller than the lead-out after the user data recorded in front of the unrecorded portion.

  In the present specification, “data having a lead-out attribute” does not specify the content of the data in the lead-out information but includes dummy data whose data attribute is a lead-out.

  According to this, when there is an unrecorded portion in the middle of user data recorded on the recording surface, a smaller amount of lead than the lead-out is placed behind the user data recorded in front of the unrecorded portion. Data having an out attribute is recorded. In this case, even if an unrecorded portion remains behind the data having the lead-out attribute, information recorded in front of the unrecorded portion using a drive device for reproducing a read-only optical disc Can be played correctly. Therefore, compatibility with a reproduction-only optical disk can be ensured in a short time.

  In this case, as in the recording method according to claim 2, prior to the step of recording the data having the readout attribute, it is determined whether or not there is a request to eject the optical disc from the information recording apparatus. A step of recording data having the lead-out attribute when there is a request to eject the optical disc as a result of the determination.

  In the recording method according to claim 1, as in the recording method according to claim 3, prior to the step of recording data having the lead-out attribute, a recording request for data having the lead-out attribute is made. The method may further include a step of determining whether or not there is a recording step, and if the result of the determination is that there is a recording request for data having the lead-out attribute, the recording step may be performed.

  In each of the recording methods according to claims 1 to 3, the step of recording on the recording surface information indicating that data having the lead-out attribute has been recorded as in the recording method according to claim 4. Further, it can be included.

  5. Each recording method according to claim 1, wherein, as in the recording method according to claim 5, data having a lead-in attribute before and after user data recorded behind the unrecorded portion and a lead The method may further include a step of recording data each having an out attribute.

  In the present specification, “data having a lead-in attribute” does not specify the content of the data in the lead-in information but includes dummy data having a data attribute of lead-in.

  In this case, the data having the lead-in attribute and the lead-out before the step of recording the data having the lead-in attribute and the data having the lead-out attribute, respectively, as in the recording method according to claim 6. A step of determining whether or not there is a request for recording data having the attribute of: when there is a request for recording data having the attribute of lead-in and data having the attribute of lead-out as a result of the determination, The step of recording the data having the lead-in attribute and the data having the lead-out attribute may be performed.

  In each of the recording methods according to claims 5 and 6, as in the recording method according to claim 7, data having a readout attribute is recorded behind the user data recorded behind the unrecorded portion. It is possible to further include a step of recording information indicating that the recording has been performed on the recording surface.

  The invention according to claim 8 is a program for use in an information recording apparatus capable of recording information on a recording surface of an optical disc, wherein an unrecorded portion exists in the middle of user data recorded on the recording surface. A program for causing the control computer of the information recording apparatus to execute a procedure for recording data having a lead-out attribute smaller than the lead-out after the user data recorded in front of the unrecorded portion. is there.

  According to this, when the program of the present invention is loaded into a predetermined memory and its head address is set in the program counter, the control computer of the information recording apparatus is in the middle of the user data recorded on the recording surface. When there is an unrecorded portion, data having a lead-out attribute of an amount smaller than the lead-out is recorded behind the user data recorded in front of the unrecorded portion. That is, according to the program of the present invention, it is possible to cause the control computer of the information recording apparatus to execute the recording method according to the first aspect of the present invention, thereby shortening the compatibility with the reproduction-only optical disk in a short time. It becomes possible to secure with.

  In this case, as in the program according to claim 9, a procedure for recording data having a lead-in attribute and data having a lead-out attribute before and after user data recorded behind the unrecorded portion, respectively. Can be further executed by the control computer.

  A tenth aspect of the present invention is a computer-readable recording medium on which the program according to the eighth or ninth aspect is recorded.

  According to this, since the program according to claim 8 or 9 is recorded, compatibility with a read-only optical disc can be ensured in a short time by causing the computer to execute the program.

  The invention according to claim 11 is an information recording apparatus capable of recording information on a recording surface of an optical disc, the optical pickup device; and an unrecorded portion in the middle of user data recorded on the recording surface And a processing device for recording data having a lead-out attribute of an amount smaller than the lead-out behind the user data recorded in front of the unrecorded portion via the optical pickup device. An information recording device.

  According to this, when there is an unrecorded portion in the middle of user data recorded on the recording surface by the processing device, the user data recorded in front of the unrecorded portion is passed through the optical pickup device. The data having the attribute of lead-out smaller than the lead-out is recorded behind. In this case, even if an unrecorded portion remains behind the data having the lead-out attribute, the user who is recorded in front of the unrecorded portion using the drive device for reproducing the read-only optical disc Data can be played back correctly. Therefore, compatibility with a reproduction-only optical disk can be ensured in a short time.

  In this case, as in the information recording apparatus according to the twelfth aspect, when the optical disk is requested to be ejected, the data having the readout attribute can be recorded.

  The information recording apparatus according to claim 11, wherein the processing apparatus, as in the information recording apparatus according to claim 13, receives the recording of the lead-out when there is a recording request for data having the lead-out attribute. Data having attributes can be recorded.

  14. Each information recording apparatus according to claim 11, wherein the processing apparatus further includes information indicating that data having the readout attribute is recorded, as in the information recording apparatus according to claim 14. Can be recorded on the recording surface.

  In each of the information recording devices according to claims 11 to 14, as in the information recording device according to claim 15, the processing device is further arranged before and after user data recorded behind the unrecorded portion. Data having a lead-in attribute and data having a lead-out attribute can be recorded respectively.

  In this case, as in the information recording apparatus according to claim 16, when the processing apparatus receives a recording request for data having the lead-in attribute and data having a lead-out attribute, Data having attributes and data having lead-out attributes can be recorded respectively.

  In each of the information recording devices according to claims 15 and 16, as in the information recording device according to claim 17, the processing device is further provided behind user data recorded behind the unrecorded portion. Information indicating that data having a lead-out attribute has been recorded can be recorded on the recording surface.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a schematic configuration of an optical disc apparatus 20 as an information recording apparatus according to an embodiment of the present invention.

  An optical disk device 20 shown in FIG. 1 includes a spindle motor 22 for rotating the optical disk 15, an optical pickup device 23, a seek motor 21 for driving the optical pickup device 23 in the sledge direction, a laser control circuit 24, An encoder 25, a drive control circuit 26, a reproduction signal processing circuit 28, a buffer RAM 34, a buffer manager 37, an interface 38, a flash memory 39, a CPU 40, a RAM 41, and the like are provided. Note that the arrows in FIG. 1 indicate the flow of typical signals and information, and do not represent the entire connection relationship of each block.

  The optical pickup device 23 is a device for condensing laser light on the recording surface of the optical disc 15 and receiving reflected light from the recording surface. The optical pickup device 23 is a semiconductor laser that emits a laser beam having a wavelength corresponding to the optical disc 15, an objective lens that condenses the light beam emitted from the semiconductor laser on the recording surface of the optical disc 15, and is reflected by the recording surface. The optical receiver is configured to include a light receiver that receives the return light beam, and a drive system (focusing actuator and tracking actuator) (both not shown) for driving the objective lens. The light receiver has a plurality of light receiving elements (or light receiving areas), and outputs a signal (photoelectric conversion signal) corresponding to the amount of light received by each light receiving element (or light receiving area) to the reproduction signal processing circuit 28.

  Based on the output signal (a plurality of photoelectric conversion signals) of the photoreceiver, the reproduction signal processing circuit 28 performs servo signals (focus error signal, track error signal, etc.), address information, synchronization signal, And an RF signal and the like are acquired. The servo signal obtained here is output to the drive control circuit 26, the address information is output to the CPU 40, and the synchronization signal is output to the encoder 25, the drive control circuit 26, and the like. The reproduction signal processing circuit 28 performs decoding processing, error detection processing, and the like on the RF signal. When an error is detected, the reproduction signal processing circuit 28 performs error correction processing, and then plays back the buffer via the buffer manager 37 as reproduction data. Store in the RAM 34.

  The drive control circuit 26 generates a drive signal for the tracking actuator for correcting the displacement of the objective lens in the tracking direction based on the track error signal from the reproduction signal processing circuit 28. Further, the drive control circuit 26 generates a driving signal for the focusing actuator for correcting the focus shift of the objective lens based on the focus error signal from the reproduction signal processing circuit 28. The drive signals for the actuators generated here are output to the optical pickup device 23. Thereby, tracking control and focus control are performed. Furthermore, the drive control circuit 26 generates a drive signal for driving the seek motor 21 and a drive signal for driving the spindle motor 22 based on an instruction from the CPU 40. The drive signal of each motor is output to the seek motor 21 and the spindle motor 22, respectively.

  The buffer RAM 34 temporarily stores data to be recorded on the optical disc 15 (recording data), data reproduced from the optical disc 15 (reproduction data), and the like. Data input / output to / from the buffer RAM 34 is managed by the buffer manager 37.

  The encoder 25 takes out the recording data stored in the buffer RAM 34 through the buffer manager 37 based on an instruction from the CPU 40, modulates the data, adds an error correction code, and the like, and writes a signal to the optical disc 15. Is generated. The write signal generated here is output to the laser control circuit 24.

  The laser control circuit 24 controls the light emission power of the semiconductor laser. For example, during recording, a laser control circuit 24 generates a semiconductor laser drive signal based on the write signal, recording conditions, semiconductor laser emission characteristics, and the like.

  The interface 38 is a bidirectional communication interface with a host device 90 (for example, a personal computer), and is a standard interface such as ATAPI (AT Attachment Packet Interface), SCSI (Small Computer System Interface), and USB (Universal Serial Bus). It is compliant.

  The flash memory 39 stores various programs including a program according to the present invention described by codes decodable by the CPU 40, recording conditions including recording power and recording strategy information, and emission characteristics of the semiconductor laser. Yes.

  The CPU 40 controls the operation of each unit in accordance with the program stored in the flash memory 39 and stores data necessary for control in the RAM 41 and the buffer RAM 34.

  Next, the optical disk 15 used in this embodiment will be described. The optical disk 15 has physical properties equivalent to those of the currently marketed DVD + RW, and basically conforms to the DVD + RW standard (see ECMA-337, for example). Therefore, as shown in FIG. 2A as an example, the information zone (Information Zone) of the optical disc 15 is 3 from the inner circumference side of the disc toward the outer circumference side, that is, in the direction in which the address increases. It is divided into two areas (Lead-in Zone), Data Area (Data Zone), and Lead-out Area (Lead-out Zone).

  As shown in FIG. 3, the lead-in area is composed of 12 zones. That is, the initial zone, the inner disc test zone, the inner drive test zone, the guard zone 1 and the reserved zone Zone 1 (Reserved Zone 1), Reserved Zone 2 (Reserved Zone 2), Inner Disc Identification Zone (Inner Disc Identification Zone), Reserved Zone 3 (Reserved Zone 3), Reference Code Zone (Reference Code Zone), buffer zone 1 (Buffer Zone 1), control data zone (Control Data Zone), and buffer zone 2 (Buffer Zone 2). This lead-in area is an area having a size of 75728 sectors (4733 ECC blocks) from 01D830h to 02FFFFh. In the DVD + R standard (see, for example, ECMA-349), the area from the guard zone 1 to the buffer zone 2 (02A480h to 02FFFFh) is called a lead-in area.

  The inner disk identification zone is an area composed of 16 ECC blocks (256 sectors), and in this area, formatting is a kind of disk control block (hereinafter referred to as “DCB”). A disc control block (Formatting Disc Control Block, hereinafter referred to as “FDCB”) is recorded. In the control data zone, the start address and end address of the data area are recorded.

  The FDCB is 16-sector information as shown in FIG. 4. The first sector is a 4-byte content descriptor (Content Descriptor), a 4-byte unknown content descriptor actions (Unknown Content Descriptor Actions). (UCDA)), a 32-byte drive ID (Drive ID), and a 2008-byte content descriptor specific (Content Descriptor Specific). The subsequent 9 sectors are a formatting bitmap, and the recording state for each physical sector is recorded. The remaining six sectors are reserved areas (Reserved), and all “0” are recorded as dummy data.

  In the content descriptor, an ASCII code of “FDC” or the like is recorded as information indicating that the DCB is an FDCB. In the UCDA, information related to processing to be prohibited when the optical disc apparatus does not support FDCB is recorded in the bitmap format as prohibition information. This prohibition information includes prohibition information relating to recording in the data area, prohibition information relating to notification of block data information to the user, prohibition information relating to the format, and prohibition information relating to the content change of the block data, etc. It corresponds to the bit. In the drive ID, information for specifying the optical disk device used for recording the FDCB is recorded.

As shown in FIG. 5, the FDCB update count (FDCB update count; 4 bytes), the format status and mode (Formatting status and mode; 4 bytes), and the last are recorded in the content descriptor specific. Address (Last written address; 4 bytes; hereinafter referred to as “LWA”), last verified address (Last verified address; 4 bytes), bitmap start address (Bitmap start address; 4 bytes), bitmap length ( Bitmap Length (4 bytes), disc ID (Disc ID; 32 bytes), application dependent (Application dependent; 32 bytes), AV data area start address (Start Address in AV Area; 4 bytes), end of AV data area Address (End Address in AV Area; 4 bytes), AV data area End attribute data end address (Last Lead-Out Address in AV Area; 4 bytes), PC data area start address (Start Address in PC Area; 4 bytes), PC data area end address (End Address in PC Area; 4 bytes), an end address of lead-out attribute data in the PC data area (Last Lead-Out Address in PC Area; 4 bytes), and dummy data (Reserved; 1832 bytes) are recorded. In the DVD + RW standard, the start address of the AV data area, the end address of the AV data area, the end address of lead-out attribute data in the AV data area, the start address of the PC data area, the end address of the PC data area, and the PC data The areas (D _{192 to} D ₂₁₅ ) in which the end addresses of the lead-out attribute data in the areas are recorded are reserved areas.

  As shown in FIG. 2A as an example, the data area includes an AV data area (AV Data Area) for recording AV data and a PC data area (PC Data Area) for recording PC data. It is divided into The start address and end address of the AV data area and the start address and end address of the PC data area are recorded in the predetermined area of the FDCB, respectively. Here, the AV data area is provided on the inner circumference side than the PC data area. The data area can be easily divided by a track reservation command (Reserved Track / Rzone Command; the operation code is 53h) issued from the host device 90 when the optical disk 15 is a blank disk. Further, the terminal 64 ECC block of the AV data area is an LO area (LO Area), and the head 64 ECC block of the PC data area is an LI area (LI Area).

  The lead-out areas are a buffer zone 3 (Buffer Zone 3) composed of 768 sectors, an outer disc identification zone (256 Outer Disc Identification Zone), and a guard zone 2 (consisting of 4096 sectors). Guard Zone 2), Reserved Zone 4 consisting of 4096 sectors, Outer Drive Test Zone consisting of 12288 sectors, Outer Disk Test Zone consisting of 2048 sectors (Outer) Disc Test Zone) and guard zone 3 (Guard Zone 3) composed of 24400 sectors. That is, the lead-out area is an area having a size of 47952 sectors (2997 ECC blocks). In the DVD + R standard, an area (320 ECC blocks) including a buffer zone 3, an outer disk identification zone, and a guard zone 2 is called a lead-out area.

  Thereafter, as an example, as shown in FIG. 2B, AV data from the host device 90 is recorded in order from the beginning of the AV data area, and PC data is recorded in order after the LI area of the PC data area.

  Next, a process (disc eject process) when a eject button provided in the optical disc apparatus 20 is pressed or when a eject request command is received from the host device 90, that is, when there is a request to eject the optical disc 15. This will be described with reference to FIG. The flowchart in FIG. 6 corresponds to a series of processing algorithms executed by the CPU 40. When there is a discharge request, the start address of the program (hereinafter referred to as “disk discharge process program”) stored in the flash memory 39 corresponding to the flowchart of FIG. 6 is set in the program counter of the CPU 40, and the disk discharge process starts. . Here, as an example, as shown in FIG. 7A, in the AV data area, there is an unrecorded portion between the AV data and the LO area, and in the PC data area, there is no unrecorded portion behind the PC data. It is assumed that a recording unit exists.

  In the first step 401, as shown in FIG. 7B as an example, a normal lead-in is recorded in the lead-in area.

  In the next step 403, the FDCB is referenced to determine whether or not the format is a mixture of AV data and PC data. Here, since the start address and end address of the AV data area and the start address and end address of the PC data area are recorded in the FDCB, the determination here is affirmed and the routine proceeds to step 405.

  In this step 405, it is determined whether or not the size of the unrecorded portion between the AV data and the LO area is equal to or larger than a preset threshold value. If the size of the unrecorded portion is equal to or larger than the threshold, the determination here is affirmed and the routine proceeds to step 407. Here, as an example, half the capacity of the AV data area excluding the LO area is set as the threshold value. However, it is needless to say that the present invention is not limited to this.

  In this step 407, as shown in FIG. 7C as an example, data having a lead-out attribute (hereinafter abbreviated as “lead-out attribute data”) is recorded in the 64 ECC block immediately after the AV data. This lead-out attribute data is data for recognizing the end of AV data when the optical disk 15 is set in a DVD-ROM drive device.

  In the next step 409, as shown in FIG. 7D as an example, the 64 ECC block immediately before the PC data, that is, data having a lead-in attribute in the LI area (hereinafter abbreviated as “lead-in attribute data”). ).

  In the next step 411, as shown in FIG. 7E as an example, the lead-out attribute data is recorded in the 64 ECC block immediately after the PC data.

  In the next step 413, the end address of the lead-out attribute data in the AV data area and the end address of the lead-out attribute data in the PC data area are recorded in the predetermined area of the FDCB.

  In the next step 421, the disc ejection system (not shown) is instructed to eject the optical disc 15. Then, the disc ejection process is terminated. Here, as shown in FIG. 7E as an example, the unrecorded part (including the LO area) remains in the ejected optical disk 15 as an example. And the lead-out attribute data, and there is no unrecorded portion there, the AV data can be normally reproduced by a normal DVD-ROM drive device.

  As an example, as shown in FIG. 8A, if the size of the unrecorded portion between the AV data and the LO area is less than the threshold, the determination in step 405 is denied, and step 415 is executed. Transition.

  In this step 415, as shown in FIG. 8B as an example, lead-out attribute data is recorded in all unrecorded portions between the AV data and the LO area.

  In the next step 417, as shown in FIG. 8C as an example, lead-out attribute data is recorded in the LO area. Then, the process proceeds to step 409. In this case, as an example, as shown in FIG. 8D, there is no unrecorded portion between the AV data and the PC data. The AV data is between the lead-in and lead-out attribute data, and there is no unrecorded portion. Therefore, the AV data can be normally reproduced by a normal DVD-ROM drive device.

  If an optical disk other than the optical disk 15 is set and the AV data and the PC data are not in a mixed format as shown in FIG. 9A as an example, the determination in step 403 is denied and step 419 is performed. Migrate to In this step 419, as shown in FIG. 9B as an example, a normal lead-out is recorded after the user data. Then, the process proceeds to step 421.

  Next, the optical disk 15 ejected as described above is set in the optical disk apparatus 20 again, and a command for requesting recording of lead-out attribute data from the host apparatus 90 to the unrecorded part (hereinafter referred to as “lead-out attribute data recording command”). ) Will be described with reference to FIG. 10. The flowchart in FIG. 10 corresponds to a series of processing algorithms executed by the CPU 40. When the lead-out attribute data recording command is received, the start address of the program (hereinafter referred to as “lead-out attribute data recording processing program”) corresponding to the flowchart of FIG. 10 stored in the flash memory 39 is set in the program counter of the CPU 40. The lead-out attribute data recording process starts. Note that the lead-out attribute data recording command does not exist in a known command set (is not standardized), so in this embodiment, as shown in FIG. 11 as an example, it is not currently used as an operation code. A 12-byte command having CBh as an operation code is defined as a read-out attribute data recording command.

  In the first step 501, the end address of the AV data area and the end address of the lead-out attribute data of the AV data area are acquired from the FDCB.

  In the next step 503, based on the end address of the AV data area and the end address of the lead-out attribute data in the AV data area, it is determined whether there is an unrecorded portion between the AV data and the PC data. As an example, as shown in FIG. 12A, if there is an unrecorded portion between AV data and PC data, the determination here is affirmed, and the routine proceeds to step 505.

  In step 505, as shown in FIG. 12B as an example, lead-out attribute data is recorded in an unrecorded portion between AV data and PC data. That is, lead-out attribute data is additionally recorded.

  In the next step 507, the end address of the lead-out attribute data in the AV data area recorded in the FDCB is updated.

  In the next step 509, the host device 90 is notified that the recording of the lead-out attribute data in the unrecorded part is complete. Then, the lead-out attribute data recording process ends.

  On the other hand, as shown in FIG. 12C as an example, if there is no unrecorded portion between the AV data and the PC data, the determination in step 503 is denied and the process proceeds to step 509. That is, the host device 90 is immediately notified of the recording completion.

  As is clear from the above description, in the optical disc device 20 according to the present embodiment, a processing device is realized by the CPU 40 and a program executed by the CPU 40. Note that at least a part of the processing device realized by the processing according to the program by the CPU 40 may be configured by hardware, or all may be configured by hardware.

  In the present embodiment, among the programs stored in the flash memory 39, the program according to the present invention is executed by the disk ejection processing program. That is, the program corresponding to the process of step 407 in FIG. 6 executes a procedure for recording data having a smaller amount of lead-out attribute than the lead-out after the user data recorded in front of the unrecorded portion. The procedure for recording the data having the lead-in attribute and the data having the lead-out attribute before and after the user data recorded behind the unrecorded portion by the program corresponding to the processing of steps 409 and 411 is as follows. It is running.

  Then, by the process of step 407 in FIG. 6, data having the attribute of the lead-out smaller than the lead-out is recorded behind the user data recorded in front of the unrecorded portion in the recording method according to the present invention. Steps 409 and 411 are performed to record data having a lead-in attribute and data having a lead-out attribute before and after the user data recorded behind the unrecorded portion. And a step of recording on the recording surface information indicating that data having a lead-out attribute has been recorded behind the user data recorded in front of the unrecorded portion by the processing of step 413, and an unrecorded portion Indicates that data having a readout attribute has been recorded behind the user data recorded behind Step of recording the broadcast on a recording surface is performed, respectively.

  As described above, according to the optical disc apparatus 20 according to the present embodiment, when there is a request to eject the optical disc 15, the data area is divided into the AV data area and the PC data area, and the AV data and the LO area If the size of the unrecorded portion between the two is greater than or equal to a preset threshold value, the lead-out attribute data is recorded in the 64 ECC block immediately after the AV data recorded in the AV data area. As a result, even if an unrecorded portion remains behind the lead-out attribute data, the information recorded in the AV data area can be correctly reproduced using the DVD-ROM drive device. Further, the lead-out attribute data of 64 ECC blocks has a data amount smaller than that of normal lead-out (2997 ECC blocks for DVD + RW and 320 ECC blocks for DVD + R). Therefore, compatibility with a reproduction-only optical disk can be ensured in a short time.

  Further, according to the disk ejection process of the present embodiment, lead-in attribute data is recorded in the 64 ECC block immediately before the PC data recorded in the PC data area, and lead-out attribute data is recorded in the 64 ECC block immediately after the PC data. Is done. Thereby, the PC data can be recognized from the host device 90.

  Further, according to the disc ejection process of the present embodiment, the end address of the lead-out attribute data in the AV data area and the end address of the lead-out attribute data in the PC data area are recorded in a predetermined area of the FDCB. Thereby, when the ejected optical disk 15 is set again, it can be immediately known whether or not an unrecorded portion remains in the AV data area.

  In the above embodiment, when the optical disk 15 is set in the optical disk device 20 again and a lead-out attribute data recording command is received from the host device 90, the lead-out attribute data is recorded in the unrecorded portion between the AV data and the PC data. However, when the optical disc 15 in which an unrecorded portion remains between AV data and PC data is set in the optical disc device 20 again, a recording request, a reproduction request, etc. The lead-out attribute data may be recorded in an unrecorded portion between the AV data and the PC data by using a timing when there is no access request. In this case, it is not necessary to notify the host device 90 of the completion of recording.

  In the disk ejection process of the above embodiment, the end address of the lead-out attribute data is recorded in the FDCB so that it can be quickly known that the lead-out attribute data of 64 ECC blocks is recorded. If the end address of the lead-out attribute data is not referred to, the end address of the lead-out attribute data need not be recorded in the FDCB. In this case, as shown in FIG. 13, it is not necessary to provide an area for recording the end address of the lead-out attribute data in the FDCB. Then, step 413 in FIG. 6 is omitted.

  In addition, in the disc ejection process of the above embodiment, when the size of the unrecorded part between the AV data and the LO area is less than the threshold value, the lead-out attribute data is recorded on all the unrecorded parts. However, the lead-out attribute data may be recorded in the 64 ECC block immediately after the AV data regardless of the size of the unrecorded portion between the AV data and the LO area. In this case, steps 405, 415 and 417 in FIG. 6 are omitted.

  In the disk ejection process of the above embodiment, the case where it is determined whether or not the format is a mixture of AV data and PC data has been described. However, it is clear that the format is a mixture of AV data and PC data. In this case, it is not necessary to determine whether or not the format is a mixture of AV data and PC data. In this case, steps 403 and 419 in FIG. 6 can be omitted.

  In the above embodiment, the case where the sizes of the LO area and the LI area are 64 ECC blocks has been described. However, the sizes of the LO area and the LI area are not limited to 64 ECC blocks. The sizes of the LI regions may be different from each other. It suffices if the corresponding drive device can recognize the end and the beginning of the data.

<Modification>
In the above-described embodiment, a case has been described in which the lead-out attribute data of 64 ECC blocks is recorded when the optical disk 15 is ejected. However, before the ejection request, the close request command (Close Track / Leadout attribute data of 64 ECC blocks may be recorded in accordance with (Session Command). As shown in FIG. 14, this close request command uses 5Bh as an operation code, a close function is set in bits 2 to 0 of byte 2, and a track number ( This is a command composed of 12 bytes in which (Track Number) is set. According to the standard, when the close function is “111”, it is a vendor unique code (Vendor Unique Code). Here, when the close function is “111”, processing according to the track number is performed. To do. That is, the close request command having the close function “111” is also a command for requesting recording of the lead-out attribute data of the 64 ECC block. The operation of the optical disk device 20 when the host device 90 issues a close request command before the ejection request will be described with reference to FIG. The flowchart in FIG. 15 corresponds to a series of processing algorithms executed by the CPU 40. The track number is in a bitmap format, with bit 0 corresponding to the AV data area and bit 1 corresponding to the PC data area.

  When the close request command is received from the host device 90, the start address of the program (hereinafter referred to as “close processing program”) corresponding to the flowchart of FIG. 15 stored in the flash memory 39 is set in the program counter of the CPU 40, and the close processing is performed. Starts.

  In the first step 601, the lead-in is recorded in the lead-in area.

  In the next step 603, the close function is extracted from the close request command.

  In the next step 605, it is determined whether or not the close function is “111”. If the close function is “111”, the determination here is affirmed and the routine proceeds to step 607.

  In this step 607, the track number is extracted from the close request command.

  In the next step 609, it is determined whether or not bit 0 of the track number is “1”. If bit 0 of the track number is “1”, the determination here is affirmed and the routine proceeds to step 611.

  In step 611, as in step 405 in the above embodiment, it is determined whether the size of the unrecorded portion between the AV data and the LO area is equal to or greater than the threshold value. If the size of the unrecorded portion between the AV data and the LO area is equal to or greater than the threshold value, the determination here is affirmed, and the routine proceeds to step 613.

  In step 613, processing similar to that in step 407 in the above embodiment is performed.

  In the next step 615, processing similar to that in step 409 in the above embodiment is performed.

  In the next step 617, it is determined whether or not bit 1 of the track number is “1”. If bit 1 of the track number is “1”, the determination here is affirmed and the routine proceeds to step 619.

  In step 619 and subsequent step 621, processing similar to that in steps 411 and 413 in the above embodiment is performed.

  In the next step 623, the host device 90 is notified that the closing process has been completed. Then, the close process ends.

  In step 617, if bit 1 of the track number is “0”, the determination here is denied and the process proceeds to step 629.

  In this step 629, a normal lead-out is recorded after the PC data. Then, the process proceeds to step 621.

  If the size of the unrecorded portion between the AV data and the LO area is smaller than the threshold value in step 611, the determination here is denied and the process proceeds to step 625.

  In step 625 and subsequent step 627, processing similar to that in steps 415 and 417 in the above embodiment is performed. Then, the process proceeds to step 615.

  If the track number bit 0 is “0” in step 609, the determination here is denied and the process proceeds to step 625.

  Furthermore, if the close function is not “111” in step 605, the determination here is denied and the routine proceeds to step 631.

  In step 631 and the next steps 633 and 635, processing similar to that in steps 415, 417 and 409 in the above embodiment is performed.

  In the next step 637, processing similar to that in step 629 is performed. Then, the process proceeds to step 621.

  Also in this modification, the same effect as the above embodiment can be obtained. In this modification, the program according to the present invention is executed by the close processing program among the programs stored in the flash memory 39. That is, the program corresponding to the processing in step 613 in FIG. 15 executes a procedure for recording data having a smaller amount of lead-out attribute than the lead-out after the user data recorded in front of the unrecorded portion. The procedure for recording the data having the lead-in attribute and the data having the lead-out attribute before and after the user data recorded behind the unrecorded portion by the program corresponding to the processing of steps 615 and 619, respectively. It is running.

  In this modification as well, the lead-out attribute data may be recorded in the 64 ECC block immediately after the AV data, regardless of the size of the unrecorded portion between the AV data and the LO area. In this case, step 611 in FIG. 15 is omitted.

  In the above embodiment, the program according to the present invention is recorded in the flash memory 39, but is stored in another recording medium (CD, magneto-optical disk, DVD, memory card, hard disk, USB memory, flexible disk, etc.). It may be recorded. In this case, the program according to the present invention is loaded into the flash memory 39 via the playback device (or dedicated interface) corresponding to each recording medium. Further, the program according to the present invention may be transferred to the flash memory 39 via a network (LAN, intranet, Internet, etc.). In short, it is sufficient that the program according to the present invention is stored in the flash memory 39.

  In the above embodiment, the case where the optical disk 15 is an optical disk conforming to the DVD + RW standard has been described. However, the present invention is not limited to this, and for example, the next generation corresponding to light having a wavelength of about 405 nm. It may be an information recording medium. In short, any information recording medium capable of recording information using light may be used.

  Moreover, although the said embodiment demonstrated the case where the optical disk 15 had one recording layer, it may have not only this but a several recording layer. In this case, a recording layer conforming to the CD standard and a recording layer conforming to the DVD standard may be mixed.

  In the above embodiment, the case where the optical pickup device includes one semiconductor laser has been described. However, the present invention is not limited thereto, and for example, a plurality of semiconductor lasers that emit light beams having different wavelengths may be included. In this case, for example, at least one of a semiconductor laser that emits a light beam with a wavelength of about 405 nm, a semiconductor laser that emits a light beam with a wavelength of about 660 nm, and a semiconductor laser that emits a light beam with a wavelength of about 780 nm may be included. . That is, the optical disk apparatus may be an optical disk apparatus that supports a plurality of types of optical disks that conform to different standards.

  Moreover, although the case where the information recording apparatus is an optical disk apparatus has been described in the above embodiment, the present invention is not limited thereto, and may be a DVD recorder, for example. In short, any device capable of recording information using light may be used.

  As described above, the recording method of the present invention is suitable for ensuring compatibility with a reproduction-only optical disk in a short time. The information recording apparatus of the present invention is suitable for ensuring compatibility with a reproduction-only optical disk in a short time. The program and the storage medium of the present invention are suitable for ensuring that the information recording apparatus is compatible with a reproduction-only optical disk in a short time.

It is a block diagram which shows the structure of the optical disk apparatus as an information recording device concerning one Embodiment of this invention. 2A and 2B are diagrams for explaining the layout of the information area of the optical disc in FIG. 1, respectively. It is a figure for demonstrating the lead-in area | region in FIG. 2 (A) and FIG. 2 (B). FIG. 4 is a diagram for explaining an FDCB recorded in an inner disk identification zone in FIG. 3. It is a figure for demonstrating the detail of the content descriptor specific in FIG. 4 is a flowchart for explaining a discharge process in the optical disc apparatus of FIG. 1. FIGS. 7A to 7E are views (No. 1) for explaining the discharge processing of FIG. FIGS. 8A to 8D are diagrams (part 2) for explaining the discharge processing of FIG. FIGS. 9A and 9B are views (No. 3) for explaining the discharge processing of FIG. 6 is a flowchart for explaining lead-out attribute data recording processing in the optical disc apparatus of FIG. 1. It is a figure for demonstrating a lead-out attribute data recording command. 12A to 12C are diagrams for explaining the lead-out attribute data recording process of FIG. It is a figure for demonstrating the modification of content descriptor specific. It is a figure for demonstrating a close request command. 3 is a flowchart for explaining a close process in the optical disc apparatus of FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 15 ... Optical disk, 20 ... Optical disk apparatus (information recording device), 23 ... Optical pick-up apparatus, 39 ... Flash memory (recording medium), 40 ... CPU (processing apparatus).

Claims (17)

A recording method for recording information on a recording surface of an optical disc using an information recording device,
When there is an unrecorded portion in the middle of user data recorded on the recording surface, the attribute of the lead-out amount less than the lead-out after the user data recorded in front of the unrecorded portion A recording method including a step of recording data having the following. Prior to the step of recording the data having the lead-out attribute, the method further comprises the step of determining whether or not there is a request to eject the optical disc from the information recording device;
The recording method according to claim 1, wherein if there is a request to eject the optical disc as a result of the determination, a step of recording data having the readout attribute is performed. Prior to the step of recording data having the lead-out attribute, the method further includes the step of determining whether or not there is a recording request for data having the lead-out attribute;
The recording method according to claim 1, wherein when there is a recording request for data having the lead-out attribute as a result of the determination, the step of recording data having the lead-out attribute is performed.   The recording method according to claim 1, further comprising a step of recording information indicating that data having the readout attribute is recorded on the recording surface.   5. The method according to claim 1, further comprising a step of recording data having a lead-in attribute and data having a lead-out attribute before and after user data recorded behind the unrecorded portion. The recording method according to any one of the above. Prior to the step of recording the data having the lead-in attribute and the data having the lead-out attribute, it is determined whether there is a recording request for data having the lead-in attribute and data having the lead-out attribute. Further comprising the step of:
As a result of the determination, when there is a recording request for data having a lead-in attribute and data having a lead-out attribute, a step of recording the data having the lead-in attribute and the data having a lead-out attribute, respectively. The recording method according to claim 5, wherein the recording method is performed.   6. The method according to claim 5, further comprising a step of recording on the recording surface information indicating that data having a lead-out attribute is recorded behind the user data recorded behind the unrecorded portion. Or the recording method of 6. A program used in an information recording apparatus capable of recording information on a recording surface of an optical disc,
When there is an unrecorded portion in the middle of user data recorded on the recording surface, a lead-out attribute with a smaller amount than the lead-out is added behind the user data recorded in front of the unrecorded portion. A program for causing a control computer of the information recording apparatus to execute a procedure for recording data.   The control computer may further execute a procedure for recording data having a lead-in attribute and data having a lead-out attribute before and after user data recorded behind the unrecorded portion. The program according to claim 8.   A computer-readable recording medium on which the program according to claim 8 or 9 is recorded. An information recording apparatus capable of recording information on a recording surface of an optical disc,
An optical pickup device;
When there is an unrecorded part in the middle of user data recorded on the recording surface, the user data recorded in front of the unrecorded part is behind the lead-out via the optical pickup device. And a processing device for recording data having a small amount of lead-out attributes.   12. The information recording apparatus according to claim 11, wherein the processing apparatus records data having the readout attribute when a request for ejecting the optical disk is made.   12. The information recording apparatus according to claim 11, wherein the processing apparatus records data having the lead-out attribute when there is a recording request for data having the lead-out attribute.   The information processing according to claim 11, wherein the processing device further records information indicating that data having the readout attribute is recorded on the recording surface. apparatus.   12. The processing apparatus further records data having a lead-in attribute and data having a lead-out attribute before and after user data recorded behind the unrecorded portion, respectively. The optical disc device according to any one of -14.   The processing device records the data having the lead-in attribute and the data having the lead-out attribute, respectively, when there is a recording request for the data having the lead-in attribute and the data having the lead-out attribute. 16. The optical disk apparatus according to claim 15, wherein The processing apparatus further records on the recording surface information indicating that data having a lead-out attribute is recorded behind user data recorded behind the unrecorded portion. The optical disc apparatus according to claim 15 or 16.

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