TWI288408B - High density optical disc/recording medium for reproducing and recording - Google Patents

Abstract

A high-density optical disc such as a high density-digital versatile disc (HD-DVD) or Blu-ray disc, and a method for reproducing or recording data of the high-density optical disc. The high-density optical disc includes a lead-in area, a data area and a lead-out area. The lead-in area has control information. A minimum mark or space length of the control information recorded in the data area. The control information of the lead-in area is copied to the lead-out area. On the basis of the data reproduction or recording method, an optical disc device can correctly read and confirm the control information from the high-density optical disc, minimize the interference between a mark and space in high-density recording data, reduce the effects of scratches or dust on the disc, and efficiently prevent an erroneous data reproduction or recording operation.

Description

1288408 r 玖, invention description: [Technical Field of the Invention] The present invention relates to a high-density 弁雄, 1 door, such as a rain density digital video disc (HD-DVD) or Blu-ray disc, the blue well april ^ 1 The special nine-disc includes a lead-in area, a data area, and a lead-out area. [Prior Art] • Fig. 1 is a block diagram showing a conventional digital video disc (DVD). The DVD 10 has a thickness of i2 〇 mm. The DVD includes a central hole having a diameter of 15 mm and a clamp region having a diameter of 44 mm, so that one of the turntables and the clamps mounted in a disc device can clamp the DVD 10 based on the pit pattern. A recording layer is formed on the DVD 10. The distance between the data recording layer and the surface of the light transmission layer is about 0.6 mm, and the distance is arranged between the data recording layer and the objective lens (〇L) of the optical pickup_up in the optical disk device. . The numerical aperture (na) value of the objective lens used for the optical pickup of the DVD is 〇·6. As shown in Fig. 2, a high-density optical disc 2 (such as a high-density digital video disc or Blu-ray disc) has a thickness of 1.2 mm and a diameter of 120 mm. The rear optical disc 2 includes a central hole having a diameter of 15 mm and a clamp region having a diameter of 44 mm, so that the turntable and the clamp installed in a disc device can clamp the high-density optical disc 20. The distance between the data recording layer and the surface of an optical transport layer is about 〇, 丨, and the distance is between the data recording layer and the objective lens (OL) of the optical pickup in the optical disc device. 1288408 Used for this understanding? #土被> The objective lens of the optical head of the slave in the first disc has a considerable numerical value of 4 values compared with the objective lens used for the general DVD. . True You> ^ ·, ,, moxibustion φ degree record data can be copied or recorded, the high-density: the laser beam used by the disc is compared with the one used for the general DVD, the wavelength phase is also used for the general DVD. The wavelength of the laser beam is 650 nm, and the wavelength of the laser beam used for the Nanmi sound is up to 405 nm, so that high-density recording data can be copied or recorded. • Therefore, in the case where the objective lens of the optical pickup for the two-density optical disc approaches the recording layer of the high-density optical disc, the optical disc device uses a wavelength phase: a short laser beam 'and the numerical aperture value of the objective lens The increase is made so that the beam spot of the laser beam is small, and the light intensity falling on the high-density recording layer is increased. Furthermore, the light transmitting layer that transmits a short wavelength laser beam can also be reduced. Therefore, the chance of changes in the characteristics and deviation of the laser beam will be minimized. As shown in Fig. 3, the high-density optical disk includes a lead-in area 2, a material area 202, and a lead-out area 2〇3. The control area includes the control information recorded for recording or copying the high-density optical disc data, such as a message related to the size of the optical disc, a disc structure, a data recording density, a data area configuration, and the like. . Therefore, when the high-density optical disc 2 is placed and loaded into the optical disc device, the control message recorded in the lead-in area 20 1 will be read and confirmed for the first time. The disc device refers to the control message and then performs a continuous copy or record operation to copy the material recorded in the data area 2, or recorded in the data area 202. In the lead-in area 201, the data area 2〇2 and the lead-out area 203, in the high-density optical disc of 6 1288408 - 23.3 GB, the length and the resource of one channel are 80 nm and 120 nm, respectively; The bit length and the data bit length are respectively 111.75 nm; and in the 27 GB high density optical disc, the pass and data bit lengths are 69 nm and 1 〇 3 5 〇 nm, respectively. The minimum mark/space of the data in areas 201, 202, and 203 is the same. # As mentioned above, the disc device must first and confirm the control message recorded in the lead-in area to reproduce or discard the data of the disc. At this time, a mark and the interference between the spaces appear in the high-density recording data. Furthermore, the surface of the optical disc is also disadvantageous for the recording or reproduction of high-density recorded data. Therefore, there is a problem that the control information cannot be properly read and a recording operation cannot be properly performed. SUMMARY OF THE INVENTION The present invention has been made in view of the aforementioned deficiencies - and the purpose of the apparatus for copying or recording its data is to correctly read and confirm the recording in the entrance area of the 逡 逡The lead-in area is included in the south density, and the audio-visual disc (HD-DVD) or Blu-ray disc. In accordance with one aspect of the present invention, the former Cheng-^$ and other mesh-density discs are achieved, and the high-density optical discs > includes: a data area and a lead-out area, wherein the material is recorded in the lead-in area In the long-length disc, the length of the 7.4 nm and the track bit are recorded in the lengths to read each other and the high density may be affected by the scratches and dust. Also copy or raise a high to allow a disc to control the message, such as a high-density number that can be borrowed from a high-level import area, the most

1288408 The small mark or pitch length is longer than the maximum or pitch length of the data recorded in the data area. Preferably, in the high-density optical disc according to the present invention, the minimum mark or pitch length of the data in the lead-in area may be longer than the minimum mark or pitch length of the data in the data area, and is recorded in the lead-in area. The minimum mark or pitch length of the data may be the same or longer than the effective diameter of a laser. Preferably, in the case where the high-density optical disc according to the present invention has a minimum mark or pitch length of the data recorded in the area, the high density further includes a specific one, which is longer than the minimum mark or pitch length recorded in the data material. A region in which information about the minimum mark or spacing of the data in the lead-in area and the data area is relevant. In another aspect consistent with the present invention, a method is provided for recording data of a high-density optical disc, the method comprising at least: reading a program recorded in the lead-in area to detect a spindle speed, And the program includes at least a predetermined reference rotation speed to detect the rotation and (b) applying a copy processing algorithm according to the result of the step (a) to record the data recorded in the lead-in area. In another aspect consistent with the present invention, a method is provided for recording data of a high-density optical disc, the method comprising at least the following steps of reading and recording in the specific area from the minimum mark or in the lead-in area and the data area The length of the message related to the length of the message is compared to the target; and (b) the result of the step (a) is applied to a copy of the recorded small mark recorded in the lead-in area recorded in the beam spot. Copy or copy: (a) the speed of the speed; to copy or copy: (a) the information of the message item algorithm to 8

1288408 Copy the data recorded in the lead-in area. In another aspect consistent with the present invention, a method is provided for a message on an optical body including a lead-in area, a user data area, and a lead-out area, the method comprising at least the following steps: (a) based on control Transmitting, in the user data area, the information to be recorded: recording a first control message in the lead-in area or the lead-out area to control copying of the recorded data in the data area; and (c) in addition to the guide In the area of the lead-out area and the user data area, the recording information is controlled to control the recorded resource in the lead-in area or the lead-out area, wherein the second control message is used to indicate the record in the material area. The minimum length of a mark or spacing, and the minimum length of the lead or middle mark or spacing. In another aspect consistent with the present invention, a method is provided for a message on an optical body including a lead-in area, a user data area, and a lead-out area, the method comprising at least the following steps: (a) controlling according to control The signal records the information to be recorded in the user data area and (b) records the control in a specific area other than the user data area to control the copying of the recorded data in the user data area, and the information includes For indicating the minimum length of a space recorded in the user data area and the message of a mark or a small length in the import or export area. [Embodiment] A high-density optical disc conforming to the present invention and a f-hopper for reproducing a recording bit recording medium; (b) a user, an input area, and a second control material multiplexer export area recording bit record The material of the mediator; the preferred embodiment of the data in the message or the distance or the record 9! 2S84 〇 8 will be described in more detail below with additional figures.

Figure 4 is a schematic diagram showing a state in which the data having different minimum "recording/pitch lengths" are recorded in a lead-in area and a data area, and the areas are made up of a high-density optical disc conforming to the present invention ( For example, a high-density optical disc 30 is provided, such as a high-density digital video disc (HD_DVD) or a Blu-ray disc including a lead-in area 301, a data area 302, and a lead-out area 3〇3. Control messages for recording or copying the high-density optical disc data, such as information related to the size of the optical disc, a disc structure, a data recording density, and a data area configuration, etc. recorded in the lead-in area 3 0 The minimum mark/pitch length of the control message in 1 is longer than the minimum mark/pitch length of the general program and sound data recorded in the data area 302. For example, as shown in Fig. 4, recorded in the lead-in area The minimum mark length (minimum mark-LIA) of the control message in 〇1 is the minimum mark length of the general program and sound data recorded in the data area 302 (the minimum mark - is long. The length of a minimum mark in the seeding area 301 is the same as or longer than the effective diameter of a laser beam spot, depending on the effective value associated with the objective lens for the high density optical disk and the wavelength of a laser beam. λ. As shown in the following Equation 1, the effective diameter of the laser beam point is about 395 nm when the effective value (ΝΑ) = 0·85 and λ = 405 nm (0.405 # m). Equation 1 Laser beam point = 0.83 X = 0.83 X —— - = 0.395//m = 395nm ΝΑ 0.85 In Equation 1 above, 0 · 8 3 is a coefficient, λ is a Ray 10

1288408 The wavelength of the beam, and the ΝΑ is an aperture value. Therefore, the minimum degree of control information recorded in the lead-in area 310 is the same as or less than the effective diameter of the laser beam point of 3 95 nm, and the minimum mark of the control message recorded in the lead-in area 310 is recorded. The minimum degree of the program and sound data in the data area is 02. Thus, the control data spacing length (minimum spacing _LIA) recorded in the lead-in area 310 is the same as or longer than the laser beam point of 395 nm. The length of the control signal recorded in the lead-in area 301 is longer than the minimum mark length (minimum pitch_DA) of the program and sound recorded in the data area 302. Referring to the table shown in Fig. 3, the high-density optical disc can be in the form of three densities. The three recording densities are in the form of a single layer of Gbytes ^ 2 5.025 Gbytes and 27.020 Gbytes and the channel bit length corresponds to each recording density, that is, the length of "1T" at Gbytes is 74.50 nm; In addition, the length of "1T" at 27.020 is 69.00 nm. For example, when the recording density is 23.305 Gbytes, the effective diameter of the laser beam obtained in the above formula 1 is 395 nm in accordance with the length of 5T (395/80.00 = 4.9375 nm). The length of the mark or the space to be recorded in the data is about "2T" to "8T". If the minimum mark or the length of the laser beam spot to be recorded in the lead-in area is the same or longer, the effective diameter of the laser beam spot is the same or longer. A mark or pitch of length "5 T" can be recorded as the data of the lead-in area. The method for adjusting the data in the lead-in area can be changed to mark the length. This length is the minimum mark length. The most accurate data of the diameter of the diameter record & 23.5 is the main. 25.025 Gbytes The equation: about the data area, therefore, with this or more, record the record 11

1288408 Length is one of "5T" to "8T" or "5T" to "11T". Further, when the method for adjusting the data recorded in the lead-in area for adjusting the data is the same, the length of the other pitches may be increased by the added minimum mark or the length of the pitch. First, since the length of other marks or spaces can be proportionally increased by the increase mark or the length of the pitch, the method for adjusting the data to be recorded in the area is used in the method for adjusting the data to be recorded in the asset. In the same case, the length of "2T" in the data area is the length of "5T" in the lead-in area, and the length of "3T" in the data area is the length of "7.5T" in the lead-in area, and the data area is in the data area. "The length will be equivalent to the length of "20T" in the lead-in area. The length of "5T" is applied instead of the length of "2T" to "8T" as described above, that is, the space of the embossed area may occupy most of the area. However, since the embossed area generally has sufficient space for the control information associated with the optical disc, the influence does not have to be too worrying. The advantage is that the same data is used in the lead-in area and the data area to adjust the load of the optical disc system. Can be reduced. On the other hand, when the method for data adjustment in the lead-in area (with minimum mark or between "5 T" or longer) is different from the method used for the data adjustment, for example, when the data in the lead-in area There are some advantages to the adjustment of the four types of "5T", "6T", "7T" and "8T". The space occupied by the lead-in area will have some negative effects, such as designing a The new adjustment record or the interval between the mark and the proportional increase will be recorded in the guide area corresponding to the degree of "20 Τ _ degrees". Use only or with less spacing. Method, 12

1288408 and the disc system will need to add a new copying device to perform a new demodulation method equivalent to the adjustment method. As described above, when the minimum mark length of the data recorded in the lead-in area is longer than the minimum mark or interval of the data recorded in the data area, or according to different data adjustment methods (and the lead-in area and When the disc-related data of the disc is copied or recorded, the message to be imported with the disc needs to be confirmed, so that the necessary information for the re-recording in the lead-in area can be appropriately read. That is, when the minimum mark or the pitch length of the lead-in area or a data adjustment type is confirmed, the data in the lead-in area can be read as appropriate. The message associated with the lead-in area needs to be recorded in a specific area, at the inner side of the lead-in area, for initial retrieval when the disc is fed into the disc device. As shown in Fig. 6, a cleavage resistance (BCA) is formed on the inner side of the lead-in area. Preferably, the information related to the lead-in area is recorded at the time for the initial reading, and the data available in the lead-in area (which refers to the lead-in area) is appropriately copied, and The foregoing is recorded in this particular area.

Further, Figures 7A and 7B show a data structure and data content related to encoding in accordance with the present invention. For example, a message indicating the minimum mark or pitch length of the guide can be recorded in the "2nd" element. The message indicating the minimum mark or long spacing of the data can be in the "3rd" data bit. The message indicating the data type of the lead-in area can be recorded in the "4th" data bit. In this case, the "blbO" containing the "1st" byte Ioj in the "2" data unit is associated with the record or the long data area or the data is recorded in the secondary read zone BCA. The BCA entry is made. Bit record whole class in the" and 13 1288408

"b7b6b5b4b3b2" can be "01" and "000010" respectively. The remaining 15 bytes included in the "2" data unit can be used to indicate the minimum mark or pitch length of the lead-in area. Similarly, "blbO" and "b7b6b5b4b3b2", which are included in the "1st" byte of the "3" data unit, can be "10" and "00001 0" respectively. The remaining 15 bytes contained in the "3" data unit can be used to indicate the minimum mark or pitch length of the data area. Similarly, "blbO" and "b7b6b5b4b3b2", which are included in the "1st" byte of the "4th" data unit, can be "11" and "000010" respectively. The remaining 15 bytes included in the "4th" data unit can be used to indicate the type of data adjustment. Figure 8 is a diagram showing a system for recording and reproducing data of the high-density optical disc in accordance with the present invention. The system includes a high-density optical disc 50; an optical read/write head 60 for reading and writing data from the optical disc 50 or recorded on the optical disc 50; a radio frequency (RF) processor for forming a a data waveform read by the optical pickup 60; a digital signal processor (DSP) 70 for converting the data copied by the RF processor, each time copying data or adjusting data in a digital manner, or The data is demodulated each time the data is recorded; a buffer memory 80 for temporarily storing the data; and a controller 90 for controlling the various components of the system. The DSP 70 can include a processor 711 for the data area according to a preset demodulation and copy signal processing method, and the method is applicable to copying general data recorded in the data area of the high-density optical disc; And a processor 72 for the lead-in area, according to another demodulation and replica signal processing method, and the method is when the small mark or the length of the pitch of the lead-in area of the lead-in area has been lengthened or the data of the lead-in area is It is especially suitable for copying data. When the optical disc 50 is loaded into the system, and the data read by the optical disc 5 write head is rotated into the controller 90 via the RF processor, the control operation is preferably performed to make the applicable material (recorded in the The demodulation and copy signal processing messages (related to the lead-in area) in the lead-in area are selected and recorded at the inside of the d. _ When the minimum mark of the data recorded in the lead-in area / the effective diameter of the laser beam spot is the same or longer, the optical disc device recording the high-density optical disc data can more correctly read the control in the lead-in area message. Therefore, the high-density recording and the interference between the spaces are minimized, and the scratches or ash are reduced, so that an erroneous recording operation can be more effectively avoided. The control of the lead-in area is derived from the lead-out area 403 (as shown in Fig. 5) in response to scratches or dust having a certain size or a large amount of presence in the aforementioned lead-in area. Next, the minimum scale of the data inserted in the lead-in area is compared with the minimum mark or pitch length of the data in the data area as a method for copying or recording the high-density optical disc material. When the disc is loaded, the general disc is copied or recorded to take control of the lead-in area of the disc: [Material, and the storage is stored in the alpha-hidden body. When the optical disc copying or recording device has been specially adjusted by the optical reading DSP 7〇, the copying method can utilize the maximum spacing length of the disc 50 and copy or record and confirm the influence of a standard dust in the recorded data. The material can be copied or recorded in high-density optical discs and can be copied to a long distance or a long distance. When the device performs a read and read message to a spindle horse 15 1288408 to maintain a fixed user data bit rate, the lead-in area, the The batting zone, an inner zone or an outer zone maintain a constant linear velocity. Therefore, when the length of the mark or the pitch recorded in the lead-in area is the same as the mark or the length of the record recorded in the data area, the linear rate associated with the operation of a disc and used to read the lead-in data is equal to The optical disk is associated with a linear rate for reading data in the data area. Therefore, the rotational speed of the spindle motor can be predicted when it is learned that the lead-in location is within a predetermined radius of the optical disc. However, if the length of the mark or the pitch of the data recorded in the lead-in area is longer than the length of the mark or the space recorded in the data area, when the fixed user data bit rate is maintained (with the lead-in area) When the linear rate of the correlation) is faster than the linear rate for maintaining the fixed user data bit rate (related to the data area), the spindle motor speed for reading the lead-in data becomes lower than the predetermined speed. fast. At the same time, if the data density is high, that is, when the mark or the pitch length is short or the distance between the tracks is narrow, the resolution of the laser beam point is lowered, and the characteristics of the light transmission function are also lowered, so that the It is difficult to read the signal by the optical pickup for proper demodulation and reproduction. Because of this, the adjustment method may be changed or a channel technique such as a partial response perfect match (pRML) or a demodulation method related to a Viterbi demodulation method (used in a communication system) may be used to make the read # The number can be demodulated or copied as appropriate. The demodulation method for copying the read signal is applied only to the data adjusted by the corresponding adjustment method. The aforementioned demodulation method is adjusted in the data by different adjustment methods*" The characteristics of the Ge Xiaoguang transmission function (4) will not be available 16

1288408 Application. Therefore, when the mark or pitch length of the lead-in area is different from the length of the mark or the pitch, the characteristics of the function associated with the lead-in area and the data area are different. Therefore, when the signal is read and copied, different signal processing methods must be applied to different regions. FIG. 9 is a flow chart E corresponding to the first embodiment of the present invention for recording and copying the high-density optical disc. Method of data. When the high-density optical disc is fed and loaded into a disc copy or set (step S 10), the device detects the rotational speed of a spindle motor for reading and recording in the lead-in area (in the user data position) The optical disk is rotated based on the speed rate (step S11). The device compares the detected at a predetermined reference rotational speed (step S12). Here, the predetermined reference rotational speed is suitable for the lead-in area. Speed, and the minimum mark or pitch length of the data is the same as the minimum mark or pitch length of the medium data, and is to be read at the user rate. At this time, if the detected rotation speed is higher than the reference, the record will be determined. The minimum mark or the length of the data in the lead-in area is recorded in the data area. The minimum mark or the length of the space in the data area is long. The new lead copy processing method is used to read the lead-in area, so that the lead-in area is relatively long. The minimum mark or spacing data (steps, the device will determine whether the data recorded in the lead-in area has been read (step S14). If the recorded data in the lead-in area has been completed, the copy processing method It will be converted into a data recorded in the data area by a predetermined copy processing method, and then a copy or record is performed (step S15). The light transmission of the material area is demodulated, which is recorded and mounted. In the speed of the line of the Μ line, the speed of the material in the data area is compared with the degree of the system. The copy of the S13) is completely read and copied.

1288408 FIG. 1 is a flow diagram illustrating the second embodiment of the present invention, illustrating a method for recording and copying data of the high-density optical disc when having a specific area (in the specific area, the number of lead-in areas and The minimum mark or spacing related message item of the data area 1 The density disc is fed into and loaded into a disc copying or recording device & S 2 0), which reads the smallest field from the particular area from the disc. The flag or pitch related message item (step S 2 1) is set to compare the values of the message items (step S22). If the minimum mark or pitch length in the comparison zone is longer than the minimum gauge length in the data zone, the device will use a new copy processing method to read the zone to copy the relatively longer length in the lead-in zone. The minimum gauge distance data (step S23). The device determines whether the recorded data has been completely read (step S24), and if the data recorded in the guide has been completely read, the device will copy the record to a predetermined copy processing method to copy the record. A copy or record operation is performed in the data area (step S25). The foregoing two methods for implementing the two embodiments of the present invention and for reproducing and high-density optical disc data can selectively use a separate polyphonic method to copy data recorded in the lead-in area, and a predetermined demodulation method to copy the record. Information in the data area. When there is a lead-in area and a lead-out area (where the high-density optical disc 40 having the same control is fed and loaded to the disc for copying or setting, the device determines whether the control message is read by the first reading process) And confirming the control message < diagram recorded in the lead-in area 40 1 , which is higher than the steps of the 3) and the post-loading of the guide or the intervening Into the area to convert to the data, record the system or copy or make a message) Record the order for this time, 18 1288408

If the control message is not properly acknowledged, the device moves the optical pickup to the lead-out area 403 and then reads the control message copied to the lead-out area 403. In this procedure, the device determines whether the control message copied to the lead-out area 403 has been properly read. If the control message copied to the lead-out area 403 is not properly read, the device determines the feed. The disc has an error in copying or recording operation, and then the device terminates the operation. On the other hand, if the control message is properly read in the lead-in area or the lead-out area, the device appropriately performs a series of copying or recording operations for reading/copying or recording the material of the data area 402. . The present invention is disclosed on the basis of copying of optical disc data, and the present invention is applicable to a method and apparatus for recording a specific area, recording a message for copying data recorded in the lead-in area or optically adjusting the lead-in area to have a minimum length. The mark or spacing (different from the minimum mark or pitch length of the data area). More specifically, the present invention can be easily applied to a host device, that is, the present invention is a method for manufacturing a disc having a specific area in which an identification message associated with a lead-in area is Recording so that the data of the lead-in area can be properly read when the minimum mark or pitch length of the lead-in area data is longer than the minimum mark or pitch length of the data area. It can be appreciated from the foregoing description that the present invention provides a high-density optical disc and a method for copying or recording the same, which allows a disc device to correctly read and confirm control information from the high-density optical disc. It minimizes the interference between a mark and the spacing in the high-density recording area, reduces the influence of scratches and dust on the optical disc, and effectively avoids erroneous data copying or recording. While the present invention has been described in connection with the preferred embodiments of the present invention, it will be understood by those skilled in the art that the various possible modifications and alternatives of the present invention are still disclosed without departing from the scope of the present invention. Fan & spirit proposed. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and other advantages of the present invention will be apparent from the following detailed description in conjunction with the accompanying drawings. Figure 2 is a block diagram showing the structure of a conventional high-density optical disc (such as a high-density digital optical disc (HD-DVD) or Blu-ray disc); Figure 3 is an illustration of the introduction of a conventional high-density optical disc. Area, material area and lead-out area; Figure 4 is a schematic diagram showing a state in which the most different mark/pitch length is recorded in a lead-in area and a data area, and the equal area is The invention provides a high-density optical disc; FIG. 5 is a schematic view showing a state in accordance with the present invention, in which a control message recorded in the lead-in area (included by the high-density optical disc) is manufactured to the lead-out area; Figure 6 shows the intrusion block (BCA) of a conventional high-density optical disc; Figures 7(4) and 7(b) show the bca of the high-density optical snail of the present day and the moon. Complex area code 20 1288408 code A data structure and data content; FIG. 8 illustrates a system for recording and reproducing data of the high-density optical disk according to the present invention; FIG. 9 is a flow chart according to the first embodiment of the present invention, A method for recording and copying data of the high-density optical disc is illustrated; FIG. 10 is a flow chart of the second embodiment of the present invention, which illustrates the recording and copying of the high-density optical disc. method.

[Simplified description of component symbol]

10 digital audio and video disc 20 South density disc 50 South density disc 60 optical read and write head 80 buffer memory 70 digital signal processor 71 data processing area 72 processing area processor 90 controller 21

Claims (1)

1288408 4# The first collection of the "factory number patent case" you revised in March, the scope of application for patent: 1. A high-density optical disc, which at least includes: a guide area, a data area, and a lead-out area, wherein the lead-in area is recorded in the lead-in area The minimum mark or pitch length of the data is the minimum mark or pitch length of the data recorded in the data area. 2. The high density optical disc of claim 1, wherein the minimum mark or pitch length of the data recorded in the lead-in area is equal to or longer than the effective diameter of a laser beam spot. 3. The high-density optical disc of claim 2, wherein the lead-out area includes at least one data item, and the system is recorded in the import 4. The high density optical disc of claim 3, wherein the minimum mark or pitch length in the lead-in area is at least twice the length of the minimum mark or pitch of the data area. 5. The high-density optical disc of claim 1, further comprising: storing information in a specific area, recorded in the lead-in area and/or capital 1288408 The minimum mark or spacing of the material in the material area. 6. The high-density light-specific region described in item 5 of the patent application is an intrusion blocking zone (Burst BCA). 7. A recording medium, comprising: at least: a lead-in area and/or a lead-out area; and a user data area, wherein one of the lead-in areas is marked or spaced, or is to be recorded in the user data area One is marked as long and forms the record, or is to be recorded in the user record or pitch, to utilize the Viterbi decoder (viterbi that contains the mark or spacing data. 8. As described in claim 7 The record medium, and/or the length of a minimum mark or pitch in the lead-out area, a minimum mark or pitch length of at least 9. The record medium as described in claim 7 of the patent application, and/or in the lead-out area A minimum mark or spacing is not read by the tool. ; , wherein the cutting area is longer than the record in the record or the length of the data area, and the copy is twice as large as the user in the lead-in area. Wherein in the lead-in area, Viterbi decoding is used in the recording medium described in claim 7, wherein the minimum mark or pitch length of the data recorded in the lead-in area and/or the lead-out area is combined with a laser. One of the beam spots has an effective diameter equal to or longer. 1 1. The recording medium of claim 7, wherein one of the lead-in area and/or the lead-out area has a different optical transmission function than the # in the user data area. 1 2. The recording medium of claim 7, wherein the mark or the spacing in the lead-in area and/or the lead-out area and the user data area is optically read by a laser beam wavelength (λ) of 405 nm. Recorded or read by the head. 1 3. If the recording medium mentioned in item 7 of the patent application scope, it further includes at least: A particular area stores information relating to the minimum mark or spacing of the material recorded in the lead-in area and/or the data area. 1 4. The recording medium as described in claim 13 wherein the specific area is a break-in block (BCA). A device for processing data from a recording medium, comprising: 3 1288408 (a) a signal processor comprising at least two processing sections for selectively processing records in a lead-in area or using a data area for processing the first processing section recorded in the user data area, and a data for processing the second processing section of the lead-in area, wherein the length of the spacing mark in the lead-in area is greater than the use The length of the spacing mark in the data area, at least the second processing section includes a processing different from the first processing section; and a φ (b) controller for controlling the signal processor to select the signal processor One of the two processing sections processes the data recorded in the lead-in area and the user data area, respectively. The apparatus of claim 15 wherein the controller selects the first processing section to process data recorded in the user profile area. The apparatus of claim 15 wherein the controller is operative to select the second processing section to process data recorded in the lead-in area. The apparatus of claim 15 wherein the controller is operative to select the first and second processing sections based on information relating to the length of the mark or spacing. 4