JP2000156040A - Disk recorder, disk reproducing device and disk-like recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk recorder capable of recording at various transfer rates on one disk-like recording medium, the disk-like recording medium recorded in the above manner, and a disk reproducing device for properly reproducing the disk-like recording medium such as the above. SOLUTION: When the recording operation is performed on a multi-spiral optical disk 1, the spiral number used as one group is decided by the transfer rate of a signal to be recorded and the number of the spiral to be used is recorded on a TOC(table of contents), etc., of the read-in area 2. The proper reproduction is attained by arranging an optical pickup for reproduction in accordance with the information of the number of the spiral at the time of reproduction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a disk recording device,
More particularly, the present invention relates to a disk recording device, a disk reproducing device, and a disk recording medium suitable for recording and reproducing multimedia information such as video data.

[0002]

2. Description of the Related Art In recent years, with the development of multimedia, video data of moving images has been recorded not only on tapes but also on disk-shaped recording media such as optical disks. Compared to ordinary data such as character information, video data is characterized by a large amount of data and a very high transfer rate. For example, MPEG (Moving Pictu
1.5Mbps (bit per secon) in reExperts Group 1
d), 4.7 on DVD (Digital Video Disc)
Information is transmitted at a transfer rate of 15 Mbps in Mbps and MPEG2. It is expected that video data such as high-definition signals will have a higher transfer rate in the future.

[0005] Video data is required to have a constant transfer rate. Therefore, when recording / reproducing to / from a disk-shaped recording medium, in a recording system in which the transfer rate changes at the location of the disk, such as a system in which peripheral devices have a fast transfer rate, such as those found in computer peripherals, the transfer rate is restricted to the lowest transfer rate. There is no point because it will be lost.

In order to increase the transfer rate, there has been proposed a method of simultaneously recording and reproducing using a plurality of optical pickups. For example, there is a method in which a track spiral is doubled, a zone of a disc is divided, or recording is performed on both sides of the disc. However, these have been determined to be special uses, and only those that operate with a fixed format such as the number of spirals and the number of revolutions have been proposed. For multimedia applications, various transfer rates are available from high image quality to low image quality, and a versatile recording device, reproducing device, and recording medium are required.

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a disk recording apparatus capable of recording on a single disk-shaped recording medium at various transfer rates, a disk-shaped recording medium recorded in such a manner, and a disk-shaped recording medium recorded in such a manner. It is an object of the present invention to provide a disk reproducing apparatus that reproduces a recording medium correctly.

[0006]

According to a first aspect of the present invention, there is provided a disk recording apparatus comprising: a plurality of recording units for recording data on a single disk recording medium having a plurality of spiral tracks; Means for recording at least one of the number of tracks to be recorded as one set and the number of tracks to be recorded as one set on a disk-shaped recording medium. . Note that the disk recording device includes a disk recording / reproducing device capable of reproducing.

According to a second aspect of the present invention, the track number is a zone number of the disk-shaped recording medium. According to a third aspect of the present invention, the number of tracks is determined by the number of tracks for each zone of the disk-shaped recording medium. According to a fourth aspect of the present invention, the track includes both sides of the disk-shaped recording medium. According to a fifth aspect of the present invention, the disk-shaped recording medium is an optical disk, and the recording means is an optical pickup.

According to a sixth aspect of the present invention, there is provided a disk recording apparatus having a plurality of recording means for recording data on one disk-shaped recording medium having a plurality of spiral tracks. At least one of the number of the track to be recorded and the number of the tracks to be recorded as one set and at least one of the rotation speed and the linear velocity of the disk-shaped recording medium are recorded on the disk-shaped recording medium. Things.

According to a seventh aspect of the present invention, the number of revolutions is a number of revolutions for each zone. In the disk recording apparatus according to the eighth aspect, the linear velocity is a linear velocity for each zone.

A disk recording apparatus according to a ninth aspect is a disk recording apparatus having a plurality of recording means for recording data on one disk-shaped recording medium having a plurality of spiral tracks. And at least one of the number of the tracks to be recorded as a set and the number of the tracks to be recorded as one set, and the use range information of the tracks are recorded on a disk-shaped recording medium. The track use range information includes address range information and area information to be used, or start address information and end address information.

According to a tenth aspect of the present invention, there is provided a disk recording apparatus having a plurality of recording means for recording data on one disk-shaped recording medium having a plurality of spiral tracks. The number of a track to be recorded and information of data to be recorded on the track are recorded on a disk-shaped recording medium. Note that the data information is information indicating data characteristics such as the type and nature of the data.

An eleventh aspect of the present invention is a disk reproducing apparatus for reproducing data recorded on a single disk-shaped recording medium having a plurality of spiral tracks, wherein one set of the disk-shaped recording medium is provided. The arrangement information of data including at least one of the number of tracks recorded on the medium and the number of tracks recorded on the disc-shaped recording medium as one set is reproduced from the disc-shaped recording medium. The reproduction means selects a track to be reproduced based on the arrangement information. Note that the disk reproducing device includes a disk recording / reproducing device that can also record.

According to a twelfth aspect of the present invention, the disk-shaped recording medium has a plurality of spiral tracks, and at least one of a track number to be reproduced as one set and a track number to be reproduced as one set is recorded. It is something that has been done.

According to a thirteenth aspect of the present invention, the track number is a zone number. According to a fourteenth aspect of the present invention, the number of tracks is the number of tracks for each zone. In the disk-shaped recording medium according to a fifteenth aspect, the track includes both sides of the disk-shaped recording medium. The disk-shaped recording medium according to claim 16 is
This disc-shaped recording medium is an optical disc.

A disk-shaped recording medium according to claim 17, having a plurality of spiral tracks, at least one of a track number to be reproduced as one set and the number of tracks to be reproduced as one set, At least one of the number of revolutions and the linear velocity during reproduction is recorded.

According to a eighteenth aspect of the present invention, the number of revolutions is set to be the number of revolutions for each zone. According to a nineteenth aspect of the present invention, the linear velocity is a linear velocity for each zone.

A disc-shaped recording medium according to a twentieth aspect has a plurality of spiral tracks, and at least one of a track number to be reproduced as one set and the number of tracks to be reproduced as one set, Track usage range information is recorded.

The disk-shaped recording medium according to the present invention has a plurality of spiral tracks, and a track number to be reproduced as one set and information of data recorded on the track are recorded. It was made.

The operation of the above means will be described. Since the number or number of spiral tracks to be recorded as one set is recorded on the disc-shaped recording medium, during reproduction, which number of spirals should be reproduced out of many spirals, or how many spirals should be reproduced It is possible to determine whether or not to reproduce. Therefore, correct reproduction can be performed.

Further, since such track number or number information is classified into zones of the disk-shaped recording medium, Z
CAV (Zone Constant Angular Velocity) method, ZC
In a method of recording by changing a recording frequency or the like by dividing a zone such as an LV (Zone Constant Lenear Velocity) method, the use of a track can be changed for each zone.
Also, by including the front and back of the disk-shaped recording medium,
The above effect can be obtained even for a disk having a plurality of spiral tracks on each side.

Also, since the number of rotations or the linear velocity together with the number and number of tracks are recorded on the disk-shaped recording medium,
CAV (Constant Angular Velocity) method and CLV
When the disc-shaped recording medium recorded by the (Constant Lenear Velocity) method is reproduced, by reading a portion where the medium is recorded, it is possible to reproduce at a correct rotation speed or linear velocity.

This is applied to a ZCL having different rotation speeds in each zone.
When using the V system or the ZCAV system in which the linear velocities are different in each zone, each zone can be used independently by recording the rotation speed and the linear speed for each zone.

Also, by recording the track use range information together with the track number and number, a large number of small data can be recorded at a high transfer rate.
This makes it possible to use the disk-shaped recording medium without leaving its capacity.

Further, by recording information of data to be recorded on the track together with the track number, it is possible to know what data is recorded on each track when reproducing. Therefore, it is possible to reproduce a combination different from recording in accordance with the purpose of reproduction and restrictions of the reproducing apparatus.

As long as the disc-shaped recording medium has the same structure as the disc-shaped recording medium recorded by each of the above-mentioned disc recording devices, the same action is exerted at the time of reproduction even if it is formed only for reproduction.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention utilizes two or more spiral, or multi-spiral, disk-shaped recording media for general purposes. An embodiment of the present invention will be described with reference to FIGS. Although an optical disk will be described as an example of a disk-shaped recording medium, the present invention is not limited thereto.

FIG. 1 shows a schematic configuration diagram of an optical disk composed of eight spiral tracks (hereinafter, simply referred to as "spirals"). FIG. 1A is an overall view, and FIG.
FIG. 2 is a detailed view of a portion A in FIG. The optical disc 1 has a lead-in area 2, a data area 3, and a lead-out area 4 from the inner peripheral side. Each area is constituted as shown in FIG. 1B by eight spiral SP1 to spiral SP8.

The lead-in area 2 has a TOC (Table Of C
Ontents) For each data recorded in the data area 3, the used spiral number, start address, end address, the content of data for each spiral, and the number of rotations of the disk at the time of recording are recorded.

Each spiral has a unique address for each sector. For example, spiral S
P1 has addresses 10,000 to 19999, spiral SP2 has addresses 20000 to 29999, spiral SP3 has addresses 30000 to 39999, spiral SP4 has addresses 40000 to 49999, spiral SP5 has addresses 50000 to 59999, and spiral SP6 has addresses 60000 to 590000. 69999,
Spiral SP7 addresses 70000-79999
But addresses 80000 to 8999 for spiral SP8
9 is attached.

In the five-digit address, up to four digits of the number forming the address are relative addresses common to all the spirals, and the fifth digit of the number forming the address is an identifier representing the spiral number. Therefore, the optical pickup knows which spiral is being traced, and does not mistake the spiral to be traced.

The optical disk 1 is 5M per spiral.
A description will be given of an example in which a bps signal can be recorded. 5 Mbps when using one spiral, 10 Mbps when using two spirals, 20 Mbps when using four spirals, 40 Mbps when using eight spirals
A signal of ps can be recorded.

The procedure for recording data on the optical disk 1 by an optical disk recording apparatus having eight optical pickups will be described in detail with reference to the flowchart of FIG. As the data to be recorded, the input data is “M” of 40 Mbps.
A multimedia signal titled "ULTI-1", of which 1/4 data is luminance data of video data, 1/4 data is color difference data of video data, and 1/4 data is audio. Data and quarter data are character information data as an example.

Step S101: The TOC is reproduced from the lead-in area 2, and a vacant spiral number and an address range are confirmed. For example, if spiral SP1 to spiral SP4 are recorded to relative address 1999 and nothing is recorded to spiral SP5 to spiral SP8, the empty spiral and its address range are from spiral SP1 to spiral SP4. Is a relative address of 2000 or more, and the entire range from spiral SP5 to spiral SP8.

Step S102: The number of spirals to be used and the content to be recorded in each spiral are determined based on the transfer rate and the content of the data to be recorded. In the present embodiment, eight spirals of this disk are used in pairs, two for luminance data, two for color difference data, two for audio data, and two for character information data. To determine.

Step S103: A spiral to be used is allocated to a free spiral, and a recording start address is determined. In the present embodiment, the address 12000 of the spiral SP1 and the address 2200 of the spiral SP2 are used.
From 0 to luminance data in video data, spiral SP
3 from the address 32000 and the address 42000 of the spiral SP4, the color difference data of the video data, the address 52000 of the spiral SP5 and the audio data from the address 62000 of the spiral SP6, the spiral SP7 from the address 72000 of the spiral SP7
8 to record character information data from the address 82000.

Step S104: The determined spiral information, address information, and data information are recorded in the TOC information of the lead-in area 2 in a predetermined format. In the present embodiment, the contents determined in step S103 are converted into information shown in Table 1, and further converted into serial data and recorded. In Table 1, since the end address is undecided, it is blank, but if the total amount of input data is known in advance, recording is possible.
This recording may be recorded in the data area 3 together with the input data in step S106 described later. When recording in the data area, recording may be performed for each sector.

[0037]

[Table 1]

Step S105: The optical pickup is assigned to the spiral to be recorded, and the input data processing system is set to the corresponding optical pickup. In this embodiment,
The first optical pickup is assigned to the spiral SP1, the second optical pickup is assigned to the spiral SP2, and so on up to the eighth optical pickup. Also, luminance data in the video data, color difference data in the video data, and the like are determined from the input data by the identifier, and the luminance data in the video data is determined by the first optical pickup and the second optical pickup. The input data processing system is set so that the color difference data in the video data is recorded by the third optical pickup and the fourth optical pickup as shown in FIG.

Step S106: The input data is distributed to eight optical pickups one after another, and is sequentially recorded on the determined spiral.

Step S107: After recording the data, the last address used is recorded in the TOC information of the lead-in area 2 so as to be entered in the blank end address column in Table 1. If the total amount of input data is known from the beginning, it may be recorded in step S104.

By recording as described above, when reproducing this optical disk, it is possible to know which spiral and which address is used for each data. Therefore, when recording data next time, recording can be performed without overlapping with previous recording, and the capacity of the optical disk can be used effectively.

In this embodiment, the number of the spiral to be used is recorded in association with the data. However, when it is not necessary to record the same type of information, the number of spirals to be used is simply recorded. Or just

In this embodiment, eight spirals are used. However, four spirals are used when recording 20 Mbps data, and two spirals are used when recording 10 Mbps data. Can be freely set by the transfer rate of the input data. Of course, only one spiral can be used.

Also, for example, when four spirals are already used from the relative address 0 to the relative address 9000 and a signal of 20 Mbps is input,
Since recording can be performed with the setting to use from the relative address 0 of the other four spirals, the capacity of the optical disk can be used effectively.

Further, the optical disk of the present embodiment can record data at a transfer rate of up to 5 Mbps per spiral, so if the transfer rate is 5 Mbps or less per spiral, 4 Mbps per spiral.
For example, data can be recorded at various transfer rates.

In the case of data recording at such a low transfer rate, if the number of rotations and the linear velocity are the same, the recording rate is higher. In the still operation, the laser power of the optical pickup must be once set to the reproduction power, and the control becomes complicated.

As a countermeasure, the number of still operations can be greatly reduced by changing the number of revolutions and the linear speed according to the transfer rate. Accordingly, the number of rotations and the linear velocity to be recorded are set together with the spiral number to be used in step S10.
By recording at the same time in step 4, it becomes possible to reproduce correctly when reproducing.

Although an optical disk capable of recording a signal of 5 Mbps per spiral has been described as an example, it is necessary to change the composition of the recording film of the optical disk depending on the desired recording speed and recording density. For multimedia applications, it is convenient to be able to use optical discs that are optimal for various transfer rates, such as when the best one can record 2 Mbps per spiral or the best one can record 20 Mbps per spiral.

If these optical disks have different recording films but the same physical shape, they can be reproduced by one optical disk reproducing apparatus. Therefore, the number of revolutions and linear velocity to be recorded together with the spiral number to be used are simultaneously determined in step S104. By recording, correct data can be reproduced at the time of reproduction. It is also possible to record the data at the stage of producing the optical disk.

Discrimination of such different types of discs is often made in the coding hole of the cartridge of the optical disc. However, in the case where a large number of optical pickups are used, it may be difficult to make the disc into a cartridge due to restrictions on the shutter shape of the cartridge. Many. Therefore, it is effective to record on an optical disk.

Next, the procedure for reproducing the optical disk recorded in this way by the optical disk reproducing apparatus will be described in detail with reference to the flowchart of FIG. Step S201: By reproducing the TOC information in the lead-in area 2, a spiral number and a start address where target data to be reproduced are recorded are obtained.

Step S202: Based on the number of optical pickups provided in the optical disk reproducing apparatus and the intended reproduction mode, it is determined which optical pickup reproduces which spiral. For example, if a disk reproducing apparatus is provided with eight optical pickups and the reproduction is performed as recorded, the first optical pickup is replaced with the spiral SP1 and the second optical pickup is replaced with the second SP.
Is assigned to the spiral SP2 and so on up to the eighth optical pickup.

If it is desired to confirm the video content by performing high-speed reproduction, it is not necessary to reproduce audio data and character information data. Further, since the object is achieved even if the reproduced image is not a color image, there is no need for color difference data in the image data.
In addition, if the content is checked, there is no problem even if the image quality is low. Therefore, only half of the luminance data of the video data, that is, only the spiral SP1 should be reproduced. Therefore, all the first to eighth optical pickups are designated as spiral SP1.

If the disc reproducing apparatus has only two optical pickups and the user wants to see a color picture though the picture quality may be coarse, half of the luminance data in the picture data and the picture Since only half of the color difference data in the data needs to be reproduced, the first optical pickup is used for the spiral SP1 and the second optical pickup is used for the spiral SP3.
To be specified. As described above, it is possible to select a spiral suitable for the form of the disk reproducing apparatus and the use of the user. In addition to the selection of the spiral, the setting of the reproduction data processing system is also performed.

Step S203: In each optical pickup,
The recorded data is reproduced one after another by tracing a predetermined spiral. The reproduced data is converted into target data by a reproduction data processing system and output.

As described above, according to the recorded information such as the spiral number, the same data as the recorded original data or the processed data that matches the reproduction purpose is correctly reproduced.

By the way, a disk reproducing apparatus having only one optical pickup can be used.
For example, even if an optical disk in which high-quality video data is recorded in eight spirals is reproduced by a disk reproducing device having only one optical pickup connected to a personal computer, a small display of the personal computer is required. If only a window is displayed, the amount of information is sufficient with one spiral, so that it can be used.

In the above-described embodiment, all the optical pickups provided in the disk recording device or the disk reproducing device are used. When recording or reproducing a signal of 10 Mbps, for example, two out of eight optical pickups are used. You don't need to use the remaining six. Therefore, the life of the optical pickup can be extended.

Next, an example of a multi-spiral optical disk of the ZCAV or ZCLV system in which the data area of the optical disk is divided by zones will be described in detail with reference to FIG. FIG. 4 shows the data area of the optical disc 5 as zone Z.
1 is a schematic diagram when divided into four zones: zone Z2, zone Z3, and zone Z4.

First, the case of ZCAV will be described. The reason why one disc is divided into zones is to record more data in the outer peripheral area than in the CAV. Because of this characteristic, it is possible to record signals with different transfer rates for each zone. For data that is short enough to complete recording within one zone, a fine-grained recording form can be achieved by selecting the number of spirals and selecting the zone. It becomes possible.

In this case, by recording the recording linear velocity or the disk rotation speed together with the spiral number, start address, end address and contents of each spiral used for each zone, independent use in each zone is possible. .

For example, if one spiral can record 2 Mbps in zone Z1, 3 Mbps in zone Z2, 4 Mbps in zone Z3, and 5 Mbps in zone Z4, a signal of 24 Mbps can be recorded in zone Z2. By using eight spirals, the recording capacity of the disc can be used most efficiently. Further, it is also possible to set such that two spirals are set in the zone Z1 and eight spirals are set in the zone Z4.

Next, the case of ZCLV will be described. The reason why one disk is divided into zones is to improve the disadvantage that in CLV, the number of rotations of the disk must be changed at the time of seeking and the access time becomes longer. That is, in the same zone, by making the disk rotation speed the same, it is possible to shorten the access time to the vicinity where there are many seeks. However, the disk rotation speed changes for each zone.

Therefore, Z is added to the multi-spiral disk.
When the CLV is employed, if the data is short enough to complete the recording in one zone as in the case of the ZCAV, a fine recording form can be achieved by selecting the number of spirals and selecting the zone. In this case, by recording the linear velocity or disk rotation speed to be recorded together with the spiral number, start address, end address and contents of each spiral used for each zone, independent use in each zone is possible.

Although the above description has been made of the case where the data is recorded on one side of the disk as an example, the form of recording on both sides of the disk is also possible. For example, in a disk having eight spirals on each side, a total of 16 spirals can be freely combined.

When recording, if a specific use is decided later, such as using one spiral as an audio track of a foreign language, only the reservation is made by recording that fact in the TOC and the spiral is recorded. It is also possible not to record in.

The spiral track of the optical disk used in the present invention may be any one which continuously records or reproduces a series of data. The continuous groove method, the land / groove in which the land and the groove are inverted every one rotation. It does not matter whether it is a groove type or a pit type. Therefore, the optical disk may be a read-only optical disk using the formed pits. Also, the number of spirals has been described as being eight, but any number may be used as long as it is two or more.

The optical disk and its recording device and reproducing device have been described by way of example. However, any disk-shaped recording medium composed of multi-spiral tracks, even if it is another recording method such as a magnetic disk, may be used. Clearly what can be done.

[0069]

According to the present invention, it is possible to freely record and reproduce a large number of multimedia signals having different transfer rates in one disk and one disk format. Therefore, portability is good without requiring a large number of disks. Further, since the recording method is multi-spiral, the recording method is applicable whether the recording method is CAV or CLV.
Further, in ZCAV and ZCLV that separate zones, recording and reproduction can be freely performed by finer settings.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an optical disk composed of eight spiral tracks, (a) is an overall view, and (b) is a detailed view of a portion A of (a).

FIG. 2 is a flowchart showing a procedure for recording data by the optical disc recording apparatus of the embodiment.

FIG. 3 is a flowchart showing a procedure for reproducing data by the optical disc reproducing apparatus of the embodiment.

FIG. 4 is a schematic diagram when a data area of an optical disc is divided into four zones.

[Explanation of symbols]

1 optical disk, 2 lead-in area, 3 data area, 4 lead-out area, 5 optical disk, SP1,
SP2, SP3, SP4, SP5, SP6, SP7, S
P8: spiral, Z1, Z2, Z3, Z4: zone

Claims (21)

[Claims] 1. A disk recording apparatus having a plurality of recording means for recording data on a single disk-shaped recording medium having a plurality of spiral tracks, wherein: a number of the track to be recorded as one set; A disk recording apparatus, wherein at least one of the number of tracks to be recorded as a set is recorded on the disk-shaped recording medium. 2. The disk recording apparatus according to claim 1, wherein the track number is a number for each zone of the disk-shaped recording medium. 3. The disk recording apparatus according to claim 1, wherein the number of tracks is the number of tracks for each zone of the disk-shaped recording medium. 4. The disk recording apparatus according to claim 1, wherein the track includes both sides of the disk-shaped recording medium. 5. The disk recording apparatus according to claim 1, wherein said disk-shaped recording medium is an optical disk, and said recording means is an optical pickup. 6. A disk recording apparatus having a plurality of recording means for recording data on a single disk-shaped recording medium having a plurality of spiral tracks, wherein the track number and one track number to be recorded as one set are recorded. A disk recording apparatus, wherein at least one of the number of tracks to be recorded as a set and at least one of a rotation speed and a linear velocity of the disk-shaped recording medium are recorded on the disk-shaped recording medium. 7. The disk recording apparatus according to claim 6, wherein the rotation speed is a rotation speed for each zone. 8. The disk recording apparatus according to claim 6, wherein the linear velocity is a linear velocity for each zone. 9. A disk recording apparatus having a plurality of recording means for recording data on a single disk-shaped recording medium having a plurality of spiral tracks, wherein: a number of said track to be recorded as one set; A disc recording apparatus, wherein at least one of the number of tracks to be recorded as a set and use range information of the tracks are recorded on the disc-shaped recording medium. 10. A disk recording apparatus having a plurality of recording means for recording data on a single disk-shaped recording medium having a plurality of spiral tracks, wherein: a track number to be recorded as one set; A disk recording apparatus for recording information of data to be recorded on a track on the disk-shaped recording medium. 11. A disk reproducing apparatus for reproducing data recorded on a single disk-shaped recording medium having a plurality of spiral tracks, wherein the tracks recorded on the disk-shaped recording medium as one set. No. and the arrangement information of the data including at least one of the number of tracks recorded on the disc-shaped recording medium as one set is reproduced from the disc-shaped recording medium, based on the arrangement information. A disc reproducing apparatus, wherein the reproducing means selects the track to be reproduced. 12. A method comprising a plurality of spiral tracks, wherein at least one of the number of the tracks to be reproduced as one set and the number of the tracks to be reproduced as one set is recorded. Disk-shaped recording medium. 13. The disk-shaped recording medium according to claim 12, wherein the track number is a zone number. 14. The disk-shaped recording medium according to claim 12, wherein the number of tracks is the number of tracks for each zone. 15. The apparatus according to claim 1, wherein the track includes the front and back of the disk-shaped recording medium.
3. The disk-shaped recording medium according to 2. 16. The disk-shaped recording medium according to claim 12, wherein said disk-shaped recording medium is an optical disk. 17. A system having a plurality of spiral tracks, wherein at least one of the number of the tracks to be reproduced as one set and the number of the tracks to be reproduced as one set, and the number of rotations and lines during reproduction A disk-shaped recording medium on which at least one of speeds is recorded. 18. The disk-shaped recording medium according to claim 17, wherein the rotation speed is a rotation speed for each zone. 19. The disk-shaped recording medium according to claim 17, wherein the linear velocity is a linear velocity for each zone. 20. At least one of a number of the tracks to be reproduced as one set and a number of the tracks to be reproduced as one set, having a plurality of spiral tracks, and usage range information of the tracks. A disk-shaped recording medium, characterized by having recorded thereon. 21. A disk-shaped disk having a plurality of spiral tracks, wherein the number of the track to be reproduced as one set and information of data recorded on the track are recorded. recoding media.