JP2003257039A - Information recording control program, recording medium and information recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording control program executed in a computer for the control of an information recorder and capable of preventing recording to an information recording medium under a recording condition which instabilizes the reproduction of information. <P>SOLUTION: Data are recorded in the recording area of the information recording medium at a specified recording speed corresponding to a recording request from the outside, and after the recording is ended, a reproducing area inside the recording area where the data are recorded is decided on the basis of the length of the recorded data (step 502). Then, the data recorded in the decided reproducing area are reproduced at a highest speed (step 503), and when it is discriminated that a reproduction error is present (step 505), the recording of the data at the specified recording speed to the information recording medium having the same identification information is inhibited (step 507). Thus, since the recording at the recording speed judged as the one having bad recording quality is inhibited thereafter, the recording to the information recording medium under the recording condition which instabilizes the reproduction of the information is prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording control program, a recording medium, and an information recording apparatus, and more specifically, an information recording medium having a spiral or concentric recording area as a target medium for information recording. Information recording control program to be executed by a control computer of an information recording device using the same, a recording medium having the information recording control program recorded, and information recording for recording information in a spiral or concentric recording area of the information recording medium Regarding the device.

[0002]

2. Description of the Related Art In recent years, as personal computers have improved in function, audio and video (AV)
o-Visual) It has become possible to handle information. Since the amount of such AV information is very large, a CD (compact disc) or a DVD (digital ve
Optical discs such as rsatile discs) have come to the forefront, and as their prices have decreased, optical disc devices as information recording devices have become popular as one of the peripheral devices of personal computers. In an optical disc device, information is recorded by irradiating a recording surface on which spiral or concentric circular tracks of the optical disc are formed with laser light, and information is reproduced based on the reflected light from the recording surface. . The optical disk device is provided with an optical pickup device for irradiating the recording surface of the information recording medium with laser light and receiving the reflected light from the recording surface.

On an optical disk, information is recorded by two areas having different reflectances called a mark (pit) area and a space area. For example, a CD-R (CD-recordable) or a DVD-R (D that contains an organic dye in the recording layer
In the write-once type optical disc such as VD-recordable), when the mark area is formed, the laser light output is increased to heat and melt the dye, and the substrate portion in contact with the mark area is deteriorated.
It is deforming. On the other hand, when forming the space region, the laser light output is made as small as during reproduction so that the substrate is not altered or deformed. As a result, the mark area has a lower reflectance than the space area.

However, even for optical discs of the same type, the type of organic dye contained in the recording layer, the thickness of the recording layer, the width of the track pitch, etc. are slightly different depending on the optical disc manufacturer (vendor). This is
This means that even if the laser light output when forming the mark area, that is, the so-called writing power is the same, the mark area having a predetermined shape is not always formed depending on the optical disc. If a mark area having a predetermined shape is not formed at the time of recording information, it becomes difficult to accurately reproduce the information, and the so-called recording quality deteriorates.

Therefore, the write-once type optical disc is provided with a trial writing area for detecting the optimum writing power for the optical disc. This area is a power calibration area (hereinafter referred to as “P”).
It is called "CA"). For example, in CD-R,
The PCA has a test area divided into 100 partitions. Each partition in the test area is composed of 15 frames. Normal,
In the optical disk device, when recording information on a write-once type optical disk, one partition is used, the writing power is changed stepwise at a constant linear velocity for each frame, and predetermined data is trial-written. In the so-called OPC (Optimum Power Control), the writing power with the highest recording quality is selected as the optimum writing power.
The operation is taking place.

For example, Japanese Unexamined Patent Publication No. 2000-163751 discloses an information recording apparatus for an optical disc which performs a recording operation at an optimum recording speed for a CD-R to be recorded. In this information recording device, the corresponding recording speed information (for example, standard double speed, double speed, double speed, etc.) pre-recorded at a predetermined position of the CD-R is read and OPC is performed at the recording speed, The optimum write power (optimum write power) for the recording speed is extracted. Next, test writing is performed again in the test area for each recording speed with the extracted optimum writing power, and the speed (optimal recording speed) that gives the best recording characteristics among the corresponding recording speeds is extracted, and the storage means Remember. Then, when recording the data, the optimum recording speed is read from the storage means, and the recording operation is performed at the recording speed. The standard double speed is also called 1 × speed and means that the linear velocity of the optical disc with respect to the optical pickup device is 1.2 to 1.4 m / sec. A linear velocity twice the standard double velocity is also called a double velocity, and a linear velocity four times the standard double velocity is also called a fourfold velocity.

[0007]

However, in the information recording apparatus disclosed in the above-mentioned Japanese Patent Laid-Open No. 2000-163751, the optimum recording speed is obtained only by the recording characteristics in the test area located on the inner circumference side. However, since the recording characteristics on the outer peripheral side, which are most susceptible to physical properties such as the warp and eccentricity of the optical disk, are not taken into consideration, the recording quality may deteriorate even at the optimum recording speed depending on the data recording position. There was an inconvenience that it might happen.

Further, as the number of optical disk vendors has increased, some optical disks have come to be commercially available on which the optimum write power cannot be accurately set. With such an optical disc, good recording quality cannot be guaranteed, and particularly when trying to perform high-speed reproduction, the frequency of reproduction errors increases, the number of retries increases, and reproduction at low speed is forced. There was an inconvenience that Furthermore, in the worst case, even a low-speed reproduction cannot be performed, and especially with a CD-R that cannot be rewritten,
The optical disk has a disadvantage that it cannot be used.

The present invention has been made under the above circumstances, and a first object thereof is to perform information recording under a recording condition which is executed by a control computer of an information recording apparatus and reproduction of information becomes unstable. An object is to provide an information recording control program capable of preventing recording on a medium and a recording medium on which the program is recorded.

A second object of the present invention is to provide an information recording apparatus capable of preventing recording on an information recording medium under a recording condition where reproduction of information becomes unstable.

[0011]

According to a first aspect of the present invention, there is provided an information recording control program used in an information recording apparatus using an information recording medium having a spiral or concentric recording area as a target medium for recording information. A step of acquiring identification information of the information recording medium; a step of recording data in a recording area of the information recording medium at a specified recording speed in response to a recording request from the outside; After the end, based on the length of the recorded data,
A procedure for determining a reproduction area in the recording area in which the data is recorded; a step for reproducing the data recorded in the determined reproduction area at a maximum speed and determining whether or not there is a reproduction error; And an information recording control program for causing a control computer of the information recording apparatus to execute a procedure of prohibiting recording of data at the specified recording speed on the information recording medium having the identification information.

In the present specification, the "identification information" means not only the type of the information recording medium but also all information that can identify the information recording medium, such as information about the vendor supplying the information recording medium. Including.

According to this, data is recorded in the recording area of the information recording medium at a specified recording speed (hereinafter abbreviated as "designated recording speed") in response to a recording request from the outside,
After the end of the recording, the reproduction area in the recording area in which the data is recorded is determined based on the length of the recorded data. Here, for example, if the length of recorded data is about 300 sectors, an area of 20 sectors from the start address of the recording area where the data is recorded and the last address of the recording area where the data is recorded are taken as an example. An area of 20 sectors including the area is determined as the reproduction area. Subsequently, the data recorded in the determined reproduction area is reproduced at the maximum speed, and when a reproduction error is detected at that time, the data at the specified recording speed for the information recording medium having the same identification information is reproduced. Recording is prohibited. That is,
Since recording at a recording speed determined to have poor recording quality is prohibited thereafter, it is possible to prevent recording on an information recording medium under recording conditions that result in unstable reproduction of information. Become. Also, when determining whether there is a playback error,
Since not only the entire recording area where data is recorded, but only the area where it is possible to determine whether there is a reproduction error,
It is possible to suppress a decrease in the throughput of the recording process. Then, it is possible to prevent the optical disc from being wasted.

In this case, as in the information recording control program according to the second aspect, the procedure for determining whether or not the length of the recorded data exceeds a predetermined length after the recording is finished is described above. In the procedure of determining the reproduction area only when the length of the recorded data exceeds a predetermined length as a result of the determination by the control computer, the reproduction area is determined. be able to. In such a case, if the length of the recorded data is small, the frequency of occurrence of the reproduction error is small, so that it is possible to prevent the useless determination of the presence or absence of the reproduction error. That is, it becomes possible to efficiently determine the presence / absence of a reproduction error.

In each of the information recording control programs described in claims 1 and 2, when there is a reproduction error as in the information recording control program according to claim 3, the information regarding the reproduction error and the designated recording The control computer may further be caused to execute a procedure for creating a table including the speed.

In this case, various kinds of information can be considered as the information relating to the reproduction error.
As in the information recording control program described in [3], the information regarding the reproduction error can include at least one of a reproduction error occurrence position and a reproduction error occurrence frequency.

In each of the information recording control programs described in claims 3 and 4, as in the information recording control program described in claim 5, the information regarding the reproduction error includes the number of times the reproduction error occurs and is externally supplied. When a recording request is received, referring to the table, and further causing the control computer to execute a procedure of prohibiting recording when the number of reproduction errors corresponding to the specified recording speed exceeds a predetermined number. Can be In this case, if it is judged from the past experience that the recording at the specified recording speed is impossible before the recording at the specified recording speed is executed, the recording requested from the outside will not be performed. Thus, it becomes possible to prevent recording with poor recording quality in advance. Then, it is possible to prevent the optical disc from being wasted.

In each of the information recording control programs described in claims 3 and 4, as in the information recording control program according to claim 6, the information regarding the reproduction error includes a reproduction error occurrence position and is externally supplied. When the recording request is received, the control is performed by referring to the table and outputting the information for warning the occurrence of the reproduction error when the data is recorded at the reproduction error occurrence position corresponding to the specified recording speed. It can be further executed by the computer for use. In such a case, prior to executing the recording at the specified recording speed, if it is judged from the past experience that a reproduction error will occur if the recording is performed at the specified recording speed, a warning will be given in advance to prevent recording with poor recording quality. It becomes possible to do. In addition, when the reproduction error information at the reproduction error occurrence position is further included in the information regarding the reproduction error, and the data is recorded at the reproduction error occurrence position corresponding to the specified recording speed, the reproduction at that position is performed. If the number of times an error has occurred exceeds a predetermined number, the control computer may be caused to further execute a procedure for prohibiting recording.

In each of the information recording control programs according to claims 1 to 6, when recording is prohibited as in the information recording control program according to claim 7, recording at a specified recording speed is not possible. It is possible to cause the control computer to further execute the procedure of outputting the non-recordable information indicating that the recording is possible. In such a case, the external device or the user can recognize that the recording speed needs to be changed. Therefore, even if the information recording medium has low recording sensitivity, the recording speed is changed to perform recording with excellent recording quality. It becomes possible to do.

An eighth aspect of the present invention is a computer-readable recording medium in which the information recording control program according to any one of the first to seventh aspects is recorded.

According to this, since the information recording control program according to any one of claims 1 to 7 is recorded, the recording condition that makes the reproduction of the information unstable by causing the computer to execute. It is possible to prevent the recording on the information recording medium.

According to a ninth aspect of the present invention, there is provided an information recording apparatus that uses an information recording medium having a spiral or concentric recording area as a target medium for recording information, and obtains identification information of the information recording medium. Identification information acquiring means for recording data in a recording area of the information recording medium at a specified recording speed in response to a recording request from an external device; and after recording by the data recording means, Based on the length of the data recorded by the data recording means, a reproduction area in the recording area in which the data is recorded is determined, and the data recorded in the determined reproduction area is reproduced at the maximum reproduction speed. Reproducing means for reproducing; determining whether or not there is a reproducing error based on the reproducing signal from the reproducing means, and if there is a reproducing error as a result of the discrimination, the identifying information is present. And recording inhibition means for inhibiting recording of at the designated recording speed for that the information recording medium;
It is an information recording device provided with.

According to this, when there is a recording request from the external device, the data recording means records the data in the recording area of the information recording medium at the specified recording speed. When the recording by the data recording means is completed, the reproducing means determines the reproducing area in the recording area where the data is recorded based on the length of the data recorded by the data recording means, and the reproducing area is determined to be the determined reproducing area. Play the recorded data at the highest playback speed.
Then, the recording prohibition means determines whether or not there is a reproduction error based on the reproduction signal from the reproduction means, and when there is a reproduction error as a result of the determination, recording at the specified recording speed on the information recording medium having the same identification information Prohibit That is, since recording at a recording speed determined to have poor recording quality is prohibited thereafter, it is possible to prevent recording on an information recording medium under recording conditions that result in unstable reproduction of information. It will be possible. Then, it is possible to prevent the optical disc from being wasted.

According to a tenth aspect of the present invention, there is provided an information recording device using an information recording medium having a spiral or concentric recording area as a target medium for recording information, wherein a reproduction error occurs in the information recording medium. Storage means for storing a table containing the number of times and a recording speed at the time of the reproduction error; designated by referring to the table stored in the storage means in response to a recording request from an external device. And an information recording device for prohibiting recording when the number of reproduction errors corresponding to the recording speed exceeds a predetermined number.

According to this, when there is a recording request from the external device, the recording prohibition means refers to the table stored in the storage means, and when it judges that the recording at the designated recording speed is impossible, the external device issues the recording request. Prohibit requested recording. That is, if it is judged from the past experience that the recording at the specified recording speed is impossible before executing the recording at the specified recording speed, the recording requested by the external device is not performed, Recording with poor quality can be prevented in advance, and recording on an information recording medium under recording conditions that result in unstable reproduction of information can be prevented. Then, it is possible to prevent the optical disc from being wasted.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
~ It demonstrates based on FIG.

FIG. 1 is a block diagram showing a schematic configuration of an optical disc device 20 as an information recording device according to an embodiment of the present invention.

The optical disk device 20 shown in FIG.
Is a spindle motor 22 for rotationally driving an optical disk 15 as an information recording medium, and an optical pickup device 2.
3, laser control circuit 24, encoder 25, motor driver 27, reproduction signal processing circuit 28, servo controller 33, buffer RAM 34, buffer manager 37, interface 38, ROM 39, CPU 4
0, flash memory 42 (storage means) and RAM 41
And so on. It should be noted that the arrows in FIG. 1 show typical flows of signals and information, and do not show all the connection relations of each block. In this embodiment, a CD-R is used as the optical disc 15 as an example.

The optical pickup 23 guides a semiconductor laser as a light source, a light beam emitted from the semiconductor laser to a recording surface of the optical disc 15, and an optical path to guide a return light beam reflected on the recording surface to a predetermined light receiving position. The optical system includes a system, a light receiver arranged at the light receiving position to receive a return light beam, and a drive system (focusing actuator, tracking actuator, and seek motor) (all not shown). Then, a current (current signal) corresponding to the amount of received light is output from the light receiver to the reproduction signal processing circuit 28.

As shown in FIG. 2, the reproduction signal processing circuit 28 includes an I / V amplifier 28a, a servo signal detection circuit 28b, a wobble signal detection circuit 28c, an RF signal detection circuit 28d, an ATIP decoder 28e, and a CD decoder 28.
f, a CD-ROM decoder 28g, a D / A converter 28h and the like. The I / V amplifier 28a converts the current signal, which is the output signal of the optical pickup 23, into a voltage signal and further amplifies it. Servo signal detection circuit 2
In 8b, a servo signal (focus error signal or track error signal) is detected based on the voltage signal from the I / V amplifier 28a and output to the servo controller 33. The wobble signal detection circuit 28c detects the wobble signal based on the voltage signal from the I / V amplifier 28a. ATI
In the P decoder 28e, the ATIP (Abso
lute Time In Pregroove) Extracts information and sync signal. The ATIP information extracted here is output to the CPU 40, and the synchronization signal is output to the encoder 25. RF
The signal detection circuit 28d detects an RF signal including reproduction information based on the voltage signal from the I / V amplifier 28a. C
The D decoder 28f performs error correction processing and the like on the RF signal. The CD-ROM decoder 28g further performs error correction processing and the like on the signal from the CD decoder 28f, and then the buffer RAM 3 via the buffer manager 37.
Store in 4. In the case of music data, the signal from the CD decoder 28f is output to an external audio device or the like via the D / A converter 28h.

Returning to FIG. 1, the servo controller 33 is
Then, a control signal for controlling the focusing actuator of the optical pickup device 23 is generated based on the focus error signal, and a control signal for controlling the tracking actuator of the optical pickup device 23 is generated based on the track error signal. Both control signals are output from the servo controller 33 to the motor driver 27.

The motor driver 27 drives the focusing actuator and the tracking actuator of the optical pickup 23 based on the control signal from the servo controller 33. Also, the motor driver 2
7, the optical disk 15 is operated based on the instruction of the CPU 40.
The spindle motor 22 is controlled so that the linear velocity is constant. Further, in the motor driver 27, the CPU 40
Based on the instruction, the seek motor of the optical pickup device 23 is driven to control the position of the optical pickup device 23 in the sledge direction (radial direction of the optical disk 15).

In the encoder 25, based on an instruction from the CPU 40, the data accumulated in the buffer RAM 34 is taken out via the buffer manager 37, an error correction code is added, etc., and the recording data on the optical disk 15 is created. . Then, in the encoder 25,
Based on an instruction from the CPU 40, the reproduction signal processing circuit 2
The recording data is output to the laser control circuit 24 in synchronization with the synchronization signal from the recording medium 8.

The laser control circuit 24 controls the output of the semiconductor laser of the optical pickup device 23 based on the recording data from the encoder 25.

The interface 38 is a bidirectional communication interface with a host (for example, a personal computer) 49, and is an ATAPI (AT Attachment Pa
cketInterface) and SCSI (Small Computer System)
Interface) and other standard interfaces.

The ROM 39 stores a program including an information recording control program, which will be described later, written in a code readable by the CPU 40. The flash memory 42 is a non-volatile memory, and the CPU 40
It is possible to write to and read from, and the recorded contents are retained even when the power is turned off.

The CPU 40 controls the operation of each of the above parts in accordance with the program stored in the ROM 39, and temporarily stores data necessary for the control in the RAM 4 or the like.
Save to 1. When the optical disk device 20 is powered on, the above program stored in the ROM 39 is loaded into the main memory (not shown) of the CPU 40.

Now, the reproduction error table used in this embodiment will be described. As an example, as shown in FIG. 3A, the reproduction error table includes a vendor code and reproduction error information (recording speed, reproduction error count, reproduction error position, recording prohibition flag). Here, the recording speed is shown as a multiple of the standard double speed described above. If the recording prohibition flag is "1", it means that recording at the recording speed is prohibited.
When the recording prohibition flag is "0", it means that recording at the recording speed is permitted. The reproduction error position is indicated by a logical address (Logical Block Address). That is, for example, when data is recorded at 20 times speed on an optical disc of vendor code “AAA”, “366
It is indicated that there are 10 reproduction errors of the data recorded at the logical address position indicated by “0”, and that recording at 20 × speed is prohibited for the optical disc of the vendor code “AAA”. In addition, when recording was performed at 16x speed on an optical disc having the vendor code "AAA", there were nine reproduction errors of the data recorded at the logical address position indicated by "1E80", and the vendor code "AAA". It is shown that recording at 16x speed is not prohibited for the optical disc of the above. This reproduction error table is stored in the flash memory 42.

Next, a case of recording data on the optical disk 15 in response to a write request from the host 49 using the optical disk device 20 configured as described above will be described with reference to FIGS. 4 and 5. . The flowcharts of FIGS. 4 and 5 correspond to a series of processing algorithms executed by the CPU 40 when a write request command is received from the host 49.

Normally, the host 49 sends a recording speed designation command prior to the write request command. Therefore, in this embodiment, it is assumed that the command for specifying the recording speed has already been received from the host 49. The vendor code of the optical disc 15 is the optical disc 1
5 is inserted into a predetermined position of the optical disk device 20, is detected at the time of so-called loading, and is stored in the RAM 41. Here, from the ATIP information recorded on the inner periphery of the optical disc 15, the lead-in
The area start address (start time) is extracted and stored in ROM beforehand.
The vendor code is detected based on the correspondence table between the lead address of the lead-in area and the vendor code stored in 39. In the present embodiment, as an example, “A
It is assumed that the vendor code "AA" is detected.

In step 401 of FIG. 4, the vendor code (here, “AA
A ") is read.

In step 403, the recording speed designated by the recording speed designation command (hereinafter referred to as "designated recording speed") is extracted. In the present embodiment, as an example, it is assumed that the host 49 specifies recording at 16 × speed.

In step 405, the flash memory 4
The reproduction error table is read from 2, and the reproduction error table is searched using the vendor code of the optical disc 15 as a key to extract the reproduction error information.

In step 407, it is determined whether or not the reproduction error information at the specified recording speed is included in the extracted reproduction error information. Here, since there is reproduction error information at the specified recording speed, the determination at step 407 is affirmative, and the process proceeds to step 409.

In step 409, the recording prohibition flag at the specified recording speed is extracted from the reproduction error information.

At step 411, the recording prohibition flag is set to 0.
Or not. Here, since the recording prohibition flag is 0, the determination in step 411 is affirmative, and the process proceeds to step 413.

In step 413, the write start address and the number of write sectors are extracted from the write request command, and the start address and the final address of the recording scheduled area are acquired.

At step 415, the reproduction error occurrence position at the specified recording speed is extracted from the reproduction error information. In this embodiment, since the designated recording speed is 16 times, the reproduction error occurrence position "1E80" is extracted.

In step 417, it is determined whether or not the reproduction error occurrence position is included in the recording scheduled area. When the reproduction error occurrence position is included in the recording scheduled area, the determination in step 417 is affirmed, the host 49 is notified of the information warning the reproduction error, and the process proceeds to step 419.

In step 419, the number of reproduction error occurrences at the specified recording speed is extracted from the reproduction error information. In the present embodiment, since the designated recording speed is 16 times, the number of reproduction error occurrences of 9 times is extracted.

In step 421, it is determined whether or not the number of reproduction errors exceeds a predetermined number N (eg N = 10). If the number of reproduction errors is equal to or less than the predetermined number N,
The determination in step 421 is denied, and the process proceeds to step 423. The predetermined number of times N can be arbitrarily set and changed by the host 49.

In step 423, the write start address and write data are extracted from the write request command. Then, the write data is recorded from the specified write start address at the specified recording speed.

Here, the processing operation at the time of recording in the optical disk device 20 will be briefly described. The CPU 40 outputs a control signal for controlling the rotation of the spindle motor 22 to the motor driver 27 based on the designated recording speed, and also notifies the reproduction signal processing circuit 28 that the write request command has been received. Reproduction signal processing circuit 2
In No. 8, when the rotation of the optical disk 15 reaches a predetermined linear velocity, the ATIP information and the servo signal are acquired based on the output signal from the optical pickup device 23. And AT
The IP information is output to the CPU 40, and the servo signal is output to the servo controller 33. Servo controller 3
In 3, the focusing actuator and the tracking actuator of the optical pickup device 23 are driven via the motor driver 27 based on the servo signal from the reproduction signal processing circuit 28, and the focus deviation and the track deviation are corrected. In the CPU 40, when the write data from the host 49 is accumulated in the buffer RAM 34 via the buffer manager 37 and the notification that the amount of data accumulated in the buffer RAM 34 exceeds a predetermined value is received from the buffer manager 37, the encoder Two
Instruct 5 to create recording data. Then, based on the ATIP information from the reproduction signal processing circuit 28, a signal for instructing the seek operation of the optical pickup device 23 so that the optical pickup device 23 is positioned at the designated writing start point is output to the motor driver 27. The CPU 40 notifies the encoder 25 when it determines that the position of the optical pickup device 23 is the writing start point based on the ATIP information. Then, the encoder 25 records the record data on the optical disc 15 via the laser control circuit 24 and the optical pickup 23. Until the recording process is completed, the reproduction signal processing circuit 28 detects the servo signal based on the output signal from the optical pickup device 23, and corrects the focus deviation and the track deviation through the servo controller 33 and the motor driver 27 as needed. To do. When the recording of the write data from the host 49 ends, the recording process ends, and the process proceeds to step 425.

At step 425, reproduction error check processing is performed. Here, details of the reproduction error check process will be described with reference to the flowchart of FIG.

In step 501 of FIG. 5, it is judged whether or not the length of the recording data exceeds a predetermined length L (for example, 4 seconds, that is, 300 sectors). If the length of the recorded data exceeds the predetermined length L, step 50
The determination at 1 is affirmative, and the process proceeds to step 503. The predetermined length L can be arbitrarily set and changed by the host 49.

At step 502, the reproduction area is determined. Here, as an example, an area of 20 sectors including an area of 20 sectors from the beginning address of the recorded area and an end address of the recorded area, that is, two areas of the beginning area and the ending area are set as reproduction areas. The recording area is 3
If the number of sectors exceeds 00, the reproduction area of 20 sectors is added every 300 sectors.

In step 503, the data recorded in each reproduction area determined as described above is reproduced at the maximum reproduction speed in the optical disk device 20. That is, the motor driver 27 is instructed to rotate the optical disc 15 at the maximum reproduction speed, and the seek operation of the optical pickup device 23 is instructed to the motor driver 27 so that the optical pickup device 23 is located at the head of the reproduction area. . Further, the reproduction signal processing circuit 28 is instructed to check the reproduction error of the recorded data. As a result, when the linear velocity of the optical disk 15 becomes stable, in the reproduction signal processing circuit 28, the RF signal detection circuit 28d causes the optical pickup device 2 to operate.
3 detects the RF signal based on the output signal from the CD decoder 28f and the CD-ROM decoder 28.
Error detection is carried out at each of h, and the result is detected by the CPU4.
Notify 0. At that time, if there is a reproduction error, the reproduction signal processing circuit 28 also notifies the CPU 40 of the logical address at which the reproduction error occurred.

In step 505, the reproduction signal processing circuit 2
Based on the notification from 8, it is determined whether or not there is a reproduction error. If there is a reproduction error, the determination at step 505 is affirmative, and the process proceeds to step 507.

In step 507, the reproduction error information is added to the reproduction error table or the reproduction error information is updated and recorded in the flash memory 42. For example, if the logical address in which the reproduction error has occurred is “1E80”, the number of reproduction errors is incremented (+1) as shown in FIG. Of course, if the logical address in which the reproduction error has occurred is not "1E80", new reproduction error information will be added. Then, the reproduction error check process ends.

On the other hand, if there is no reproduction error in step 505, the determination in step 505 is denied and the reproduction error check process is terminated. If the length of the record data is equal to or less than the predetermined length L in step 501, the determination in step 501 is denied and the reproduction error check process is ended.

Returning to FIG. 4, when the reproduction error check processing is completed, the processing when the write request command is received from the host 49 is completed.

On the other hand, when the number of reproduction errors exceeds the predetermined number N in step 421 of FIG. 4, the determination in step 421 is affirmative, and the process proceeds to step 427.

In step 427, the recording prohibition flag of the designated recording speed in the reproduction error table is set to 1 to notify the host 49 that recording cannot be performed at the designated recording speed. Then, the process when the write request command is received from the host 49 is ended.

If it is determined in step 417 that the reproduction error occurrence position is not included in the planned recording area, the determination in step 417 is denied and the process proceeds to step 423.

Further, when the recording prohibition flag is 1 in step 411, the determination in step 411 is denied, and the process proceeds to step 427. That is, no recording is done.

If there is no reproduction error information at the specified recording speed in step 407, step 40
The determination at 7 is denied, and the process proceeds to step 423.

Next, the processing operation of the optical disk device 20 when receiving a read request command from the host 49 will be briefly described. Upon receipt of the read request command from the host 49, the CPU 40 outputs a control signal for controlling the rotation of the spindle motor 22 to the motor driver 27 based on the reproduction speed, and also causes the host 4
The reproduction signal processing circuit 2 indicates that the read request has been received from
Notify 8. When the rotation of the optical disk 15 reaches a predetermined linear velocity, the reproduction signal processing circuit 28 acquires ATIP information and servo signals based on the output signal from the optical pickup device 23. And the ATIP information is CP
The servo signal is output to U40 and the servo signal is sent to the servo controller 3
3 is output. The servo controller 33 drives the focusing actuator and the tracking actuator of the optical pickup device 23 via the motor driver 27 based on the servo signal from the reproduction signal processing circuit 28, and corrects the focus deviation and the track deviation.
The CPU 40 outputs to the motor driver 27 a signal instructing the seek operation so that the optical pickup device 23 is positioned at the reading start point designated based on the ATIP information. When the CPU 40 determines that the position of the optical pickup device 23 is the reading start point based on the ATIP information, it notifies the reproduction signal processing circuit 28. Then, in the reproduction signal processing circuit 28, the optical pickup device 2
The RF signal is detected based on the output signal of No. 3 and subjected to error correction processing and the like, and then stored in the buffer RAM 34. The buffer manager 37 transmits to the host 49 via the interface 38 when the reproduction data accumulated in the buffer RAM 34 is prepared as sector data. The reproduction signal processing circuit 28 continues until the reproduction processing is completed.
Detects a servo signal based on the output signal from the optical pickup device 23, and corrects focus deviation and track deviation through the servo controller 33 and the motor driver 27 as needed.

As is clear from the above description, in the present embodiment, the CPU 40 constitutes the identification information acquisition means, the data recording means, the reproduction means, and the recording prohibition means.

Further, the optical disk device 2 according to the present embodiment.
At 0, of the above processes performed by the CPU 40,
The processes shown in the flowcharts of FIGS. 4 and 5 are stored in the ROM 39 as an information recording control program.

However, it goes without saying that the present invention is not limited to this. That is, the above embodiment is merely an example, and at least a part of each component realized by the processing according to the program by the CPU 40 may be configured by hardware.
Alternatively, all the constituent parts may be configured by hardware.

As described above, according to the optical disk device of the present embodiment, when data is recorded at the specified recording speed, the area determined by the length of the data is reproduced and a reproduction error occurs. Prohibits subsequent recording at the specified recording speed. As a result, it is possible to prevent the optical disc from being wasted because recording is prohibited at a recording speed that is expected to have poor recording quality. Therefore, it is possible to prevent the recording on the information recording medium under the recording condition that the reproduction of the information becomes unstable.

Further, according to the optical disc apparatus of this embodiment, the reproduction error is checked only when the length of the recorded data is larger than the predetermined value. When the length of the recorded data is small, the frequency of occurrence of the reproduction error is low, so that it is possible to prevent unnecessary check of the reproduction error.

Further, according to the optical disk device of the present embodiment, when the write request command is received from the host 49, the flash memory 42 is started prior to the recording process.
The reproduction error table stored in is referred to, and the reproduction error occurrence count at the specified recording speed is referred to the optical disc 15. If the reproduction error occurrence count exceeds a predetermined value, recording is performed. It is prohibited. That is, it is possible to prevent the optical disc from being wasted in order to prohibit recording at a recording speed that is expected to have poor recording quality based on past experience.

Further, according to the optical disk device of the present embodiment, when the write request command is received from the host 49, the optical disk 15 is referred to by referring to the reproduction error table stored in the flash memory 42 prior to the recording process. On the other hand, the position at which the reproduction error is likely to occur at the designated recording speed is referred to, and if the position at which the reproduction error is likely to occur is included in the planned recording area, the host 49 is notified of the information for warning the reproduction error. There is. That is, since it is possible to prevent recording at a position where a reproduction error is likely to occur from past experience, it is possible to prevent the optical disc from being wasted.

Further, according to the optical disk device of the present embodiment, when recording at the specified recording speed is prohibited,
The host 49 is notified of the non-recordable information. As a result, the host 49 can recognize that the designated recording speed needs to be changed to obtain a predetermined recording quality, and by changing the designated recording speed, high quality recording can be performed on the optical disc. .

In the above embodiment, the case where the reproduction error table is stored in the flash ROM 42 in advance has been described, but the present invention is not limited to this. If the reproduction error table is not stored in the flash ROM 42, step 40 in FIG.
Only the processings 1, 403, 423, and 425 are performed. Then, in step 507 of FIG. 5, a new reproduction error table is created.

In the above embodiment, the case where the judgment value N of the number of reproduction errors is constant regardless of the vendor code has been described. However, the present invention is not limited to this, and a different value is judged depending on the vendor code. Good as a value. Also, different judgment values may be used depending on the reproduction error position. For example, N on the inner side of the predetermined address
The determination value of 1 may be used, and the determination value of N2 may be used on the outer peripheral side of the predetermined address.

Further, in the above embodiment, the case where the flash memory is used as the storage means has been described, but the present invention is not limited to this. However, it is preferable that the memory is a non-volatile memory that retains stored contents even when power is not supplied.

In the above embodiment, the judgment processing as to whether or not the reproduction error occurrence position is included in the scheduled recording area is carried out, but this judgment processing is not necessarily required.
In this case, steps 413 to 41 in FIG.
The processing of 7 is not performed.

Further, in the above-mentioned embodiment, the judgment processing as to whether or not the number of times of occurrence of the reproduction error exceeds the predetermined number of times is carried out, but this judgment processing may not necessarily be carried out. In this case, step 419 and step 421 in FIG.
Will not be performed.

Although the information recording control program is recorded in the ROM 39 in the optical disk device of the above embodiment, it is recorded in another information recording medium (CD-ROM, magneto-optical disk, MO, etc.). Is also good. In short, the information recording control program may be loaded into the main memory of the CPU 40.

In the above embodiment, the optical disk 15
However, the present invention is not limited to this, and any recordable information recording medium may be used.

Further, the optical disk device 20 according to the above-described embodiment may be a so-called built-in type which is arranged in the same housing as the host, or a so-called external type which is arranged in a housing different from the host. It may be attached type.

In the above embodiment, the case where the optical disk device is used as the information recording device has been described, but the present invention is not limited to this, and an information recording medium in which a recordable information recording medium can be used as a target medium for information recording. Any device will do. Of course, an information recording / reproducing apparatus capable of both reproduction and recording may be used.

[0085]

As described above, according to the information recording control program and the recording medium of the present invention, it is executed by the control computer of the information recording apparatus and the reproduction of the information becomes unstable under the recording condition. There is an effect that recording on the information recording medium can be prevented.

Further, according to the information recording apparatus of the present invention, there is an effect that it is possible to prevent recording on the information recording medium under a recording condition in which reproduction of information becomes unstable.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an optical disc device according to an embodiment of the present invention.

FIG. 2 is a block diagram for explaining a detailed configuration of a reproduction signal processing circuit in FIG.

FIG. 3A and FIG. 3B are views for explaining a reproduction error table according to the embodiment of the present invention.

FIG. 4 is a flowchart for explaining processing when a write request command according to the embodiment of the present invention is received.

FIG. 5 is a flowchart for explaining details of step 425 of FIG.

[Explanation of symbols]

15 ... Optical disc (information recording medium), 20 ... Optical disc device (information recording device), 40 ... CPU (identification information acquisition means, data recording means, reproduction means, recording prohibition means), 42
... Flash memory (storage means).

Claims (10)

[Claims] 1. An information recording control program used in an information recording apparatus that uses an information recording medium having a spiral or concentric recording area as a target medium for information recording, wherein identification information of the information recording medium is acquired. A procedure for recording data in a recording area of the information recording medium at a specified recording speed in response to a recording request from the outside; and based on the length of the recorded data after the recording is completed. A procedure for determining a reproduction area in the recording area in which the data is recorded; a procedure for reproducing the data recorded in the determined reproduction area at the maximum speed to determine the presence or absence of a reproduction error; A procedure for prohibiting recording of data at the specified recording speed on the information recording medium having the identification information when there is an error; Information recording control program to be executed by use computer. 2. After the recording, the control computer is caused to further execute a procedure for determining whether or not the length of the recorded data exceeds a predetermined length, and the recording is performed as a result of the determination. The information recording control program according to claim 1, wherein the reproduction area is determined in the procedure of determining the reproduction area only when the length of the reproduced data exceeds a predetermined length. 3. The control computer is further caused to execute a procedure for creating a table including information concerning the reproduction error and the specified recording speed when there is a reproduction error. 2. The information recording control program described in 2. 4. The information recording control program according to claim 3, wherein the information regarding the reproduction error includes at least one of a reproduction error occurrence position and a reproduction error occurrence frequency. 5. The information relating to the reproduction error includes the number of times of occurrence of the reproduction error, and when the recording request from the outside is received, the number of times of occurrence of the reproduction error corresponding to the designated recording speed is referred to by referring to the table. The information recording control program according to claim 3, further comprising causing the control computer to further execute a procedure for prohibiting recording when the number of times exceeds a predetermined number. 6. The information relating to the reproduction error includes a reproduction error occurrence position, and when a recording request from the outside is received, the table is referred to and the reproduction error occurrence position corresponding to a specified recording speed is set. The information recording control program according to claim 3 or 4, further comprising causing the control computer to further execute a procedure of outputting information for warning the occurrence of a reproduction error when data is recorded. 7. The control computer is further caused to execute a procedure of outputting non-recordable information indicating that recording at a specified recording speed is impossible when recording is prohibited. The information recording control program according to any one of claims 1 to 6. 8. A computer-readable recording medium in which the information recording control program according to any one of claims 1 to 7 is recorded. 9. An information recording device using an information recording medium having a spiral or concentric recording area as a target medium for recording information, the identification information acquiring means for acquiring identification information of the information recording medium; Data recording means for recording data in a recording area of the information recording medium at a specified recording speed in response to a recording request from an external device; and after being recorded by the data recording means, recorded by the data recording means. Reproducing means for determining a reproducing area in the recording area in which the data is recorded, and reproducing the data recorded in the determined reproducing area at the maximum reproducing speed;
The presence / absence of a reproduction error is determined based on the reproduction signal from the reproduction means, and when there is a reproduction error as a result of the determination, recording on the information recording medium having the identification information at the specified recording speed is prohibited. Record prohibition means;
An information recording apparatus including. 10. An information recording apparatus using an information recording medium having a spiral or concentric recording area as a target medium for information recording, wherein the number of occurrences of a reproduction error and the occurrence of the reproduction error in the information recording medium. Storage means for storing a table containing the recording speed at the time of recording; and reproduction corresponding to the specified recording speed by referring to the table stored in the storage means in response to a recording request from an external device. An information recording apparatus, comprising: a recording prohibiting unit that prohibits recording when the number of times an error occurs exceeds a predetermined number.