JP4434085B2 - Optical disk device - Google Patents

Description

The present invention relates to an optical disc apparatus that reproduces information recorded on an optical disc or records / reproduces information to / from an optical disc, and more particularly, to a process for assisting a user in the case where an optical disc cannot be reproduced. .

In recent years, DVDs (digital versatile discs), which are optical discs capable of recording information such as a large amount of video and audio data such as movies, are becoming widespread. As a DVD type, a DVD-RO in which information is recorded on the manufacturer side and cannot be rewritten on the user side
An M type DVD, a DVD-R type DVD in which information can be recorded only once on the user side, a DVD-RW (DVD-RAM) type DVD rewritable on the user side, and the like are known. Information recorded on these DVDs can be reproduced by a DVD player or a DVD recorder, and a DVD-R type DVD or a DVD-RW (DVD-RAM) type DV.
Information can be recorded on D or the like with a DVD recorder.

By the way, such DVD optical discs are becoming denser year by year.
In an optical disk device such as a player or a DVD recorder, it is necessary to perform strict processing of data read from the optical disk, and a reading error occurs even for a minute improper signal generated by a slight contamination on the recording surface of the optical disk. And the subsequent operation is stopped, so that it is impossible to perform proper reproduction of the optical disk of the DVD.

In such a case, the user can solve the problem by performing a cleaning operation such as wiping the recording surface of the optical disc, and the optical disc can be reproduced. For example, a fingerprint is attached to the recording surface of the optical disc. In some cases, it is not obvious at first glance, and even if you notice this, fingerprints often do not affect the reading of the optical disc, as is the case with CD optical discs that have been used for a long time. In many cases, the reading error of the DVD optical disk is not noticed due to the fingerprint.

In that case, the user is not only caused by the contamination of the recording surface of the DVD optical disk, but also because the recording data of the DVD optical disk is inappropriate, or the optical disk device side includes the optical pickup of the optical disk device. Misunderstood that there is a problem with the optical disk device, and is taking measures such as sending out the optical disk device for repair.
JP 2003-141819 A JP 2002-176623 A

However, the inability to reproduce is not only due to the dirt on the recording surface of the DVD optical disc, but also due to the DVD-Video creation software that has become widespread recently, with general users using the DVD-Video creation software using a personal computer. When a DVD-Video optical disc is created and the DVD-Video optical disc cannot be reproduced, there is a problem that the user does not know how to deal with it.

The prior art of Patent Document 1 prompts cleaning when the optical disk is dirty, but does not display a difference in data recording method or a violation of DVD-Video rules. is not.

The prior art of Patent Document 2 is designed to promote the cleaning of the optical disk having the highest possibility when the error rate is equal to or higher than a predetermined value. In addition, for example, dirt on the lens surface of the optical pickup, etc. However, since this conventional technique does not display a difference in data recording system or a violation of DVD-Video rules, the above problem cannot be solved.

The present invention has been made to solve the above-described problems. When a DVD-Video optical disc cannot be played back, it is investigated why it cannot be played back and how the user should deal with it. An object of the present invention is to provide an optical disc apparatus having a function that can be supported.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a read determining means for determining whether or not the data recorded on the optical disc is normally read after the optical disc is inserted, and the data is normal. Read error display means for displaying a read error on the display device when it is determined that the data has not been read, and whether or not UDF is recorded on the optical disk when it is determined that the data has been read normally UDF recording determination means for determining
A first DVD-Video recording determination means for determining whether or not information necessary for DVD-Video is recorded when it is determined that the UDF is recorded; and the DVD-V
When it is determined that information necessary for video is recorded, the optical disk is reproduced as a reproducible optical disk, and the UDF recording determination means performs the UDF
ISO 9660 recording determination means for determining whether or not ISO 9660 is recorded on the optical disc when it is determined that the ISO 9660 is not recorded, and data is recorded on the optical disc when it is determined that the ISO 9660 is not recorded. Data unrecorded error display means for displaying an error display on the display device as an unprocessed optical disc, and the ISO 9
Second DVD-Video recording determination means for determining whether or not information necessary for DVD-Video is recorded when it is determined that 660 is recorded, and the first or second
DVD-Video error display means for displaying on the display device an error that the optical disc is not DVD-Video when it is determined by the DVD-Video recording determination means that the information required for the DVD-Video is not recorded. And when the second DVD-Video recording determination means determines that the information necessary for the DVD-Video is recorded, the optical disc is a non-compliant optical disc and displays an error on the display device. There is provided an optical disc apparatus comprising a system controller having an error display means.

In this configuration, after the optical disc is inserted, when the read determination unit determines that the data recorded on the optical disc has not been read normally, a read error is displayed on the display device by the read error display unit. When it is determined that the data has been normally read, it is determined by the UDF recording determination means whether or not UDF is recorded on the optical disc. When it is determined that the UDF is recorded, the DVD- Vide
Whether the information necessary for o is recorded is determined by the first DVD-Video recording determination means, and when it is determined that the information necessary for the DVD-Video is recorded,
The optical disk is reproduced by the reproduction control means as a reproducible optical disk.

When the UDF recording determination means determines that the UDF is not recorded, the ISO9660 recording determination means determines whether or not ISO9660 is recorded on the optical disc. When it is determined that the ISO9660 is not recorded, an error display is displayed on the display device by the data non-recording error display means as an optical disk on which no data is recorded. When it is determined that the ISO9660 is recorded, it is determined whether or not the information necessary for the DVD-Video is recorded.
It is determined by the D-Video recording determination means.

When it is determined by the first DVD-Video recording determination means or the second DVD-Video recording determination means that information necessary for the DVD-Video is not recorded, the optical disc is not a DVD-Video. The error is that different DVD-Vid
It is displayed on the display device by the eo error display means. Said second DVD-Vide
o When it is determined by the recording determination means that necessary information is recorded on the DVD-Video, an error is displayed on the display device by the standard violation disk error display means as an error of the standard optical disk.

According to this configuration, when the DVD-Video optical disc cannot be played back, it is possible to investigate why the playback cannot be performed and to support the user how to deal with it. -The expert knowledge about Video can be deepened, and therefore the probability of failure in the next DVD-Video creation can be reduced, and the number of complaints from users can be reduced.

The invention of claim 2 shows an error display when the data of the optical disc is not normally read after the optical disc is inserted, an error display when the optical disc violates the standard, and the optical disc is of DVD-Video. A system controller that causes a display device to display an error when the optical disc is not a standard optical disc ,
Was the data recorded on the optical disc read correctly after the optical disc was inserted?
Read determination means for determining whether or not it is determined that the data has not been read normally
Read error display means for displaying a read error on the display device, and the data
Is determined to have been read normally, the first format is recorded on the optical disc.
First format recording determining means for determining whether or not the first format is recorded, and the first format
Information necessary for DVD-Video is recorded when it is determined that is recorded.
First DVD-Video recording determination means for determining whether or not the DVD-Video
An optical disc that can be played back when it is determined that necessary information is recorded.
And the first format recording determination means for reproducing the first
When it is determined that the format is not recorded, the second format is recorded on the optical disc.
Second format recording determining means for determining whether or not a recording is recorded;
When it is determined that the format is not recorded, the optical disc records data.
Data not recorded error that causes an error display to be displayed on the display device as an unrecorded optical disk
-Display means and DVD-V when it is determined that the second format is recorded
Second DVD-Video recording for determining whether or not information necessary for video is recorded
The DVD- by the judging means and the first or second DVD-Video recording judging means.
When it is determined that information necessary for Video is not recorded, the optical disc is a DVD.
-Different DVD-Video that displays on the display device an error that is not Video
o The error display means and the second DVD-Video recording determination means
When it is determined that the information necessary for video is recorded, the optical disc
Non-standard disc error display for displaying errors on a display device as an optical disc
There is provided an optical disc device characterized by having a stage .

In this configuration, after the optical disk is inserted, when the data on the optical disk is not read out normally, an error is displayed on the display device, so that the optical disk is an optical disk on which no data is recorded, It can be seen that there is a possibility of an optical disk with a mark or an inexpensive optical disk, and it is possible to instruct the DVD-Video to be created with another new optical disk.

In addition, when the optical disc is in violation of the standard, an error is displayed on the display device, whereby it is possible to instruct the supplier of the created software or the manufacturer of the optical disc device to make an inquiry. In addition, the optical disc is DVD-Video.
When it is not an optical disc of the standard, an error message is displayed on the display device.
The user can be instructed to insert an optical disc on which DVD-Video is recorded.

According to this configuration, when the DVD-Video optical disc cannot be played back, it is possible to investigate why the playback cannot be performed and to support the user how to deal with it. -The expert knowledge about Video can be deepened, and therefore the probability of failure in the next DVD-Video creation can be reduced, and the number of complaints from users can be reduced.

In the invention of claim 3, in the invention of claim 2 , since the first format is UDF and the second format is ISO9660, the file system recorded on the optical disc is UDF, When the file system recorded on the optical disc is ISO9660, each error display process can be executed.

As described above, according to the present invention, after the optical disk is inserted, the read determination means for determining whether or not the data recorded on the optical disk is normally read, and the data is not normally read. A read error display means for displaying a read error on the display device when it is determined that the data has been read, and UDF recording for determining whether or not the UDF is recorded on the optical disc when it is determined that the data has been normally read. A determination means, a first DVD-Video recording determination means for determining whether or not information necessary for DVD-Video is recorded when it is determined that the UDF is recorded, and the DVD-Video; Reproduction control means for reproducing the optical disc as a reproducible optical disc when it is determined that necessary information is recorded; When it is determined by the UDF recording determination means that the UDF is not recorded, it is determined whether ISO9660 is recorded on the optical disc, and when it is determined that the ISO9660 is not recorded In addition, the optical disc is an optical disc on which no data is recorded, data unrecorded error display means for displaying an error display on the display device, and information necessary for DVD-Video is recorded when it is determined that ISO 9660 is recorded. The second DVD-Video recording determining means for determining whether or not the recording has been performed, and the DVD-Video recording determining means or the second DVD-Video recording determining means or the second DVD-Video recording determining means.
When it is determined that information necessary for recording is not recorded, the optical disc is a DVD-Vide
When different DVD-Video error display means for displaying an error that is not o on the display device and the second DVD-Video recording determination means determine that information necessary for the DVD-Video is recorded Since the optical disk is provided with a system controller having a non-standard disk error display means for displaying an error on the display device as a non-standard optical disk, the reason why the DVD-Video optical disk cannot be reproduced is investigated. , The user can support how to deal with this, and thereby deepen the understanding of the general user's expertise regarding DVD-Video, so when the next DVD-Video is created, Can reduce the chance of failure, It is possible to reduce the complaints from.

Further, according to the present invention, after the optical disc is inserted, an error display when the data of the optical disc is not read correctly, an error display when the optical disc violates the standard,
And a system controller that causes the display device to display an error when the optical disc is not a DVD-Video standard optical disc.
If the optical disc cannot be played back, the user can investigate why it cannot be played back and can assist the user in how to deal with it, so that the DVD-Vide of the general user can be supported.
o to deepen the understanding of specialized knowledge, so next time DVD-Video
Can reduce the probability of failure and reduce user complaints.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of a DVD recorder as an optical disk apparatus according to an embodiment of the present invention.

The DVD recorder includes a spindle motor 5 that rotates the optical disc 1, an optical pickup 2 that emits laser light for recording / reproducing information on the optical disc 1 and receives reflected light from the optical disc 1, and A sled 3 for moving the optical pickup 2 in the radial direction of the optical disc 1, a system controller 22 for controlling the entire apparatus, the spindle motor 5 and the sled 3 are driven in accordance with instructions from the system controller 22, and the optical pickup 2 And a servo control unit 4 for performing control to move the focal position of the laser beam in the vertical direction and the horizontal direction with respect to the recording surface of the optical disc 1 by moving an objective lens (not shown) incorporated in the optical disc 1.

The DVD recorder also includes an RF amplifier 6 that amplifies an RF signal that is a read signal from the optical pickup 2 during reproduction of the optical disc 1, and an optical disc 1 that converts the RF signal output from the RF amplifier 6 into digital data. A digital signal processing unit 8 that stores data generated by performing signal demodulation processing and ECC error correction processing in accordance with the data format in RAM 7 and data output from the digital signal processing unit 8 in response to an instruction from the system controller 22 A stream separation unit 9 is provided for separating audio data, sub-picture data, and video data from the stream.

The DVD recorder also receives audio data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores data for performing the decoding process by the audio decoder 11. The RAM 10, the sub-picture decoder 13 that inputs the sub-picture data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores the data to perform the decoding process by the sub-picture decoder 13 A RAM 12, a video decoder 15 that receives the video data output from the stream separation unit 9 and performs a predetermined decoding process, and a RAM 14 that temporarily stores data to perform the decoding process in the video decoder 15. It has.

The DVD recorder also synthesizes the data output from the video decoder 15 and the data output from the sub-picture decoder 13 in response to an instruction from the system controller 22, and the video processor 17 outputs the video processor 17. A video encoder 18 that converts the synthesized data into a video signal for display and displays an image on the display device 20, and a D / D converter that converts the data output from the audio decoder 11 into an analog audio signal and supplies the analog audio signal to the speaker 19, for example. A converter 16 is provided.

In addition, this DVD recorder uses an infrared signal to the system controller 22,
A remote control 21 having various operation keys such as a reproduction key for giving a reproduction instruction, a stop key for instructing a reproduction stop, a recording key for giving a recording instruction, and a power key, and each component of the apparatus are controlled. Or a flash ROM 23 in which programs and data for controlling the entire apparatus are stored, a CPU 24 that performs arithmetic processing according to the programs and data in the flash ROM 23 and controls the system controller 22, and is necessary for the processing of the CPU 24 And a RAM 27 for temporarily storing data.

The DVD recorder also includes a recording data modulation circuit 25 that modulates video / audio data sent from a television receiver (not shown) or a personal computer to record on the optical disc 1, and the recording data modulation circuit 25. And a laser modulation circuit 26 for outputting a laser modulation signal for modulating the laser beam emitted from the optical pickup 2 to the optical pickup 2 based on the modulated data.

The system controller 22 is a component that characterizes the present embodiment.
Is inserted, a read determination means 221 for determining whether or not the data recorded on the optical disc 1 has been normally read, and a read error when it is determined that the data has not been read normally. A read error display means 222 to be displayed on the display device 20, a UDF recording determination means 223 for determining whether or not a UDF is recorded on the optical disc 1 when it is determined that the data has been normally read; A first determination as to whether or not information necessary for DVD-Video is recorded when it is determined that a UDF is recorded.
DVD-Video recording determination means 224 and a reproduction control means 225 for reproducing the optical disk 1 as a reproducible optical disk when it is determined that information necessary for the DVD-Video is recorded.

Further, the system controller 22 is configured to determine whether or not ISO9660 is recorded on the optical disc 1 when the UDF recording determination unit 223 determines that the UDF is not recorded, and the ISO9660. The data unrecorded error display means 227 displays an error display on the display device 20 as an optical disk on which no data is recorded when the optical disk 1 is determined not to be recorded.
And second DVD-Video recording determining means 228 for determining whether or not information necessary for DVD-Video is recorded when it is determined that the ISO9660 is recorded.
And have.

Further, when the system controller 22 determines that the information necessary for the DVD-Video is not recorded by the first DVD-Video recording determination unit 224 or the second DVD-Video recording determination unit 228, the optical disk 1 is a DVD-Video error display means 229 for displaying on the display device 20 an error indicating that it is not a DVD-Video, and the second DVD-Video recording determination means 228 is used for the DVD-
When it is determined that information necessary for Video is recorded, the optical disc 1 has a non-standard disc error display means 230 that displays an error on the display device 20 as a non-standard optical disc.

FIG. 2 is a diagram showing a data structure recorded on a DVD optical disc according to the DVD-Video standard in the present embodiment. In FIG. 2, the video object set (VO
BS) is a plurality of video objects (VOB), ie, (V0B_IDN1), (V0).
B_IDN2), ..., (V0B_IDNi). IDN1, IDN
2,..., IDNi indicate identification numbers. Each video object (VOB) is composed of a plurality of cells (Cells). For example, a video object (V0B_I
DN1) is a plurality of cells (C_IDN1), (C_IDN2), ..., (C_IDNj)
). IDN1, IDN2,..., IDNj indicate identification numbers.

For example, the cell (C_IDN1) is composed of a plurality of video object units (VOBU). Each video object unit (VOBU) has a navigation pack (
NV_PCK), audio pack (A_PCK), video pack (V_PCK), and sub-picture pack (SP_PCK).

The navigation pack (NV_PCK) and the audio pack (A_PCK)
) Is composed of, for example, 2048 bytes, for example, a 14-byte pack header (Pac
k header), 24-byte system header (System header),
6-byte packet header (Packet header), 1-byte substream identifier (Sub_stream_id), 979-byte play control information data (PCI data), 6-byte packet header (Packet header)
1-byte substream identifier (Sub_stream_id) and 1017-byte data search information data (DSI data).

A play control packet (PCI_PKT) is composed of a 6-byte packet header (Packet header), a 1-byte substream identifier (Sub_stream_id), and 979-byte play control information data (PCI data). A 6-byte packet header (Packet header), a 1-byte substream identifier (Sub_stream_id), and a 1017-byte data search information data (DSI data) make a data search information packet (DSI_PKT).
Configure.

Data search information data (DSI data) composed of 1017 bytes includes 32-byte data search information general information, 148-byte seamless reproduction information (SMI_
PBI), 54 bytes of seamless angle information (SML_AGLI), 168 bytes of video object unit search information (VOBU_SRI), 144 bytes of synchronization information (SYNCI), and 471 bytes of reserved.

The 168-byte video object unit search information (VOBU_SRI) is composed of 4-byte video forward information (FWDI Video), a 160-byte data area, and 4-byte video backward information (BWDI Video). .
The video forward information (FWDI Video) is the next video object unit (VOBU) in the video stream (navigation pack start address).
Indicates the start address. The video backward information (BWDI Video) indicates the start address of the previous video object unit (VOBU) in the video stream (start address of the navigation pack).

  This embodiment is characterized by performing the following processing.

Check whether the optical disk can read data correctly. If the data could not be read correctly, it may have been created on an optical disc that does not have data recorded on it, a damaged optical disc, or an inexpensive medium (optical disc). Instruct them to do it.

It is checked whether the file system recorded on the optical disc is UDF. If not recorded in UDF, it is checked whether it is recorded in ISO9660. ISO
If the data is not recorded in 9660, there is a high possibility of an optical disk on which no data is recorded. Therefore, an instruction is given to insert the optical disk on which data is recorded into the optical disk apparatus. If the file is recorded in ISO9660, it is checked whether a file necessary for DVD-Video playback is recorded. If a file necessary for DVD-Video playback has been recorded, it is instructed to make an inquiry to the created software company or the manufacturer of the optical disk device (DVD recorder or DVD player) because the optical disk is in violation of the standard. D
If the files required for VD-Video playback are not recorded, DVD-Video
Since o is not the recorded optical disk, the optical disk device is instructed to insert the optical disk recorded with DVD-Video.

It is checked whether a file necessary for DVD-Video playback is recorded. DVD-V
If a file necessary for reproducing the video is not recorded, it is not an optical disk on which DVD-Video is recorded, so that the optical disk apparatus is instructed to insert the optical disk on which DVD-Video is recorded.

FIG. 3 is a diagram for explaining a structure example of a UDF bridge volume in the present embodiment. FIG. 4 is a diagram for explaining an example of the structure of a UDF file in the present embodiment. FIG.
FIG. 6 is a diagram showing an example of a read error display when data of the optical disc cannot be read in the present embodiment, and FIG. 6 is an example of a standard violation error display when the optical disc is a non-compliant optical disc in the embodiment. FIG. FIG. 7 is a diagram showing an example of a display indicating that the optical disc is not a DVD-Video in the present embodiment. FIG. 8 is a flowchart showing a process for displaying each error in this embodiment.

Hereinafter, processing for displaying each error in the present embodiment will be described with reference to the flowchart of FIG. 8 and FIGS. 1 to 7.

After the optical disk 1 is inserted and started up, the read determination means 221 of the system controller 22 determines whether or not the data on the optical disk 1 could not be read normally due to a scratch or the like (step S1). That is, the read determination means 22 checks the light reflectance of the optical disc 1, for example, determines whether or not the data is normally read, and when the data is not normally read,
Generates a read error signal. When the data recorded on the optical disc 1 cannot be read normally, the read error display means 222 responds to the read error signal to the display device 20 as shown in FIG. “Please check the optical disc.” A message indicating a read error is displayed (step S2).

On the other hand, when it is determined that the data on the optical disc 1 has been normally read (step S1).
The UDF recording determination means 223 confirms whether the structure identifier “BEA01” is recorded in the logical sectors 16 to 20, as shown in FIG.
Whether or not UDF is recorded is determined (step S3). When it is determined that the UDF is recorded, the first DVD-Video recording determination unit 224
It is determined whether information necessary for the video is recorded (step S4).

Acquisition of information necessary for the DVD-Video will be described with reference to FIGS.
First, the anchor volume descriptor pointer of the logical sector 256 is read to obtain the position of the main volume descriptor sequence and the length of the main volume descriptor sequence. Next, the partition descriptor is found from the main volume descriptor sequence to obtain the partition start position. In addition, find the logical volume descriptor from the primary volume descriptor sequence,
Get the file set descriptor position. Thereafter, the file set descriptor position is obtained from the partition start position and the file set descriptor position.

Next, the file entry (root directory) position is acquired from the file set descriptor. Find the VIDEO_TS file identifier descriptor from the file entry (root directory). The file entry (VIDEO_TS directory) position is acquired from this VIDEO_TS file identifier descriptor. And file entry (VI
DEO_TS directory) to VIDEO_TS. Find the IFO file identifier descriptor. Next, VIDEO_TS. File entry (from IFO file identifier descriptor)
VIDEO_TS. IFO) position is acquired. After this, file entry (VIDEO
_TS. The leading logical sector number of VMGI (video management information) is obtained from IFO).

The acquired information is information necessary for DVD_Video referred to in step S4. When it is determined that necessary information is recorded on the DVD-Video, the playback control unit 225 plays back the optical disc 1 as a playable optical disc (step S5).

When the UDF recording determination means 223 determines that no UDF is recorded on the optical disc 1 (step S3), the ISO9660 recording determination means 226 confirms whether or not the structure identifier “CD001” is recorded from the logical sector 16 As a result, I
It is determined whether SO9660 is recorded (step S7). ISO9660
When it is determined that no data is recorded, the data unrecorded error display means 227 displays an error display on the display device 20 as the optical disk 1 is an optical disk on which no data is recorded.
(Step S8).

When it is determined that the ISO9660 is recorded (step S7), the second DV
The D-Video recording determination means 228 receives information necessary for DVD-Video from the optical disc 1.
Is recorded (step S9). Since information necessary for DVD-Video has been described above, description thereof is omitted here.

When the first DVD-Video recording determination means 224 or the second DVD-Video recording determination means 228 determines that the information necessary for the DVD-Video is not recorded (step S4 or step S9), the different DVD -Video error display means 22
9 shows an error that the optical disc 1 is not a DVD-Video, and the display device 2
0 is displayed (step S6 or step S11). For example, as shown in FIG. 7, an error message such as “This optical disk is not a DVD-Video. Please check the optical disk” is displayed on the display device 20.

When it is determined by the second DVD-Video recording determination means 228 that information necessary for the DVD-Video has been recorded (step S9), the optical disk 1 reports an error as an optical disk that violates the standard to the display device 20. It is displayed (step S10).
For example, as shown in FIG. 6, the display device 20 indicates that “This optical disc may be in violation of the standard. Please contact the manufacturer of the software company or recorder you created.
Is displayed.

As described above, according to the present embodiment, when a DVD-Video optical disc cannot be played back, it is investigated why the playback cannot be performed, and the user can support how to deal with it. Thus, it is possible to deepen the general user's understanding of the DVD-Video expertise, and therefore, it is possible to reduce the probability of failure when creating a DVD-Video next time, and to reduce complaints from the user.

In the present embodiment, the process of displaying each error on a DVD recorder that can be recorded / reproduced as an optical disc apparatus has been described. However, the process of displaying each error on a DVD player that can only be reproduced as well. It goes without saying that can be adopted.

It is a block diagram which shows the structure of the DVD recorder as an optical disk apparatus based on one Embodiment of this invention. 3 is a diagram illustrating a data structure recorded on a DVD optical disc according to the DVD-Video standard in the embodiment. FIG. It is a figure for demonstrating the structural example of a UDF bridge volume in the said embodiment. It is a figure for demonstrating the structural example of a UDF file in the said embodiment. It is a figure which shows an example of a read error display when the data of the said optical disk cannot be read in the said embodiment. It is a figure which shows an example of a standard violation error display when the said optical disc is a noncompliant optical disc in the said embodiment. It is a figure which shows an example of the display that the said optical disk is not DVD-Video in the said embodiment. It is a flowchart which shows the process for displaying each error in the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk 22 System controller 221 Reading determination means 222 Read error display means 223 UDF recording determination means 224 1st DVD-Video recording determination means 225 Playback control means 226 ISO9660 recording determination means 227 Data unrecorded error display means 228 2nd DVD -Video recording determination means 229 Different DVD-Video error display means 230 Standard violation disk error display means

Claims (3)

In an optical disc apparatus that reproduces information recorded on an optical disc or records / reproduces information on an optical disc, it is determined whether or not data recorded on the optical disc is normally read after the optical disc is inserted. Read determination means for performing read error display means for displaying a read error on a display device when it is determined that the data has not been normally read, and when it is determined that the data has been normally read U on optical disc
UDF recording determination means for determining whether or not DF (Universal Disc Format) is recorded, and whether or not information necessary for DVD-Video is recorded when it is determined that UDF is recorded. A first DVD-Video recording determination means for determining; and the DVD
-When it is determined that information necessary for Video is recorded, the optical disk is played back as a playable optical disk, and the UDF recording determination means
When it is determined that DF is not recorded, ISO (International Organization for Standardization)
ISO 9660 recording determination means for determining whether or not 9660 is recorded, and the ISO
When it is determined that 9660 is not recorded, the optical disc is determined to be an unrecorded error display means for displaying an error display on the display device as an optical disc on which no data is recorded, and the ISO 9660 is recorded. Sometimes DVD-Video
The second DVD-Video recording determining means for determining whether or not the information necessary for recording is recorded, and the first DVD-Video recording determining means or the second DVD-Video recording determining means, the DVD- Different DVD-Video error display means for displaying on the display device an error that the optical disc is not a DVD-Video when it is determined that information necessary for Video is not recorded, and the second DVD-Video recording determination The optical disc includes a system controller having a non-standard disc error display unit for displaying an error on the display device as a non-standard optical disc when it is determined by the means that necessary information is recorded on the DVD-Video. An optical disc device characterized by the above. In an optical disc apparatus for reproducing information recorded on an optical disc or recording / reproducing information on an optical disc, an error display when data on the optical disc is not read correctly after the optical disc is inserted, Error display when the optical disc violates the standard,
And a system controller that causes the display device to display an error when the optical disc is not a DVD-Video standard optical disc ,
The system controller records the optical disk after the optical disk is inserted.
Read determination means for determining whether or not the read data has been read normally; and
A read error is displayed on the display device when it is determined that the data has not been detected.
Error display means and the optical display when it is determined that the data has been read normally.
First format recording determination for determining whether or not the first format is recorded
And DVD-Vide when it is determined that the first format is recorded.
The first DVD-Video recording judgment hand for judging whether or not the information necessary for o is recorded
And when it is determined that information necessary for the DVD-Video is recorded,
The disc is played back as a playable optical disc, playback control means, and the first former
When the first recording determining means determines that the first format is not recorded
A second formatter for determining whether or not the second format is recorded on the optical disc
When it is determined that the second recording format is not recorded.
The optical disc displays an error display as an optical disc on which no data is recorded.
The data unrecorded error display means to be displayed on the display and the second format are recorded.
If it is determined that the information necessary for the DVD-Video is recorded,
Second DVD-Video recording determination means, and the first or second DVD-Video
It is determined by the recording determination means that information necessary for the DVD-Video is not recorded.
Error message that the optical disc is not a DVD-Video display device
A different DVD-Video error display means to be displayed on the second DVD-Video
When it is determined by the recording determination means that information necessary for the DVD-Video is recorded
In this case, the error message is displayed on the display device as an optical disc that violates the standard.
An optical disc apparatus comprising: a non-standard disc error display means . The first format is UDF and the second format is ISO9660
The optical disk apparatus according to claim 2, wherein the optical disk apparatus is an optical disk apparatus.

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