JP2006185480A - Optical disk apparatus and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize an optical disk apparatus wherein a type of the content recorded in an optical disk can be distinguished regardless of the kinds of the optical disk. <P>SOLUTION: The optical disk apparatus (11) is provided with a system controller (12) distinguishing the type of the content recorded in the optical disk (16) based on an exchange between a host device (100) and the optical disk apparatus (11), a disk rotation controlling part (13) controlling rotational speed of the optical disk apparatus (11) and a communication rate controlling part (17) controlling data communication rate between the host device (100) and the optical disk apparatus (11). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical disc apparatus, and more particularly to a technique of an optical disc apparatus capable of reproducing various types of data such as digital video data and computer data.

  As optical disk control devices such as computers and the like, that is, host devices, have become more sophisticated, optical disk devices can transfer data to host devices at high speed. However, since high-speed communication has to increase the disk rotation speed in the optical disk apparatus and the data communication speed between the host apparatus and the optical disk apparatus, the noise and vibration of the optical disk apparatus, and the rotation speed of the optical disk increase. There are problems such as a decrease in durability of the optical disk reproducing device, generation of noise accompanying an increase in data communication speed, a decrease in reliability of data communication due to the generation of noise, and an increase in power consumption of the entire device.

  In order to solve the above problem, the optical disc apparatus generally reproduces at a rotation speed determined in advance for each type of optical disc. For example, in the case of a CD (Compact Disc), music content is played at a low rotation speed, and data content is played at a maximum rotation speed. In the case of a DVD (Degital Versatile Disc), a dual-layer disc is reproduced at a low rotational speed, and a single-layer disc is reproduced at a high rotational speed. However, in the case of a DVD, since the content is data processed on a computer, the content is always played back at the maximum rotation speed, and even content that does not need to be played back at high speed, such as audio video data, is played at the maximum rotation speed. Will be.

Therefore, in the conventional technology, the VIDEO_TS directory recorded on the DVD, the copyright protection system type (Copyright Protection System Type), the region management information (Region Management Information), or the CPM (Copyright Material) bit of the header of each sector data is set. By referencing, it is determined whether or not the content type of the DVD is audio-video data. If it is audio-video data, reproduction is performed at a low speed (for example, refer to Patent Document 1).
JP 2001-357601 A (4th, 5th page, FIG. 2)

  The VIDEO_TS directory, the copyright protection system type, the region management information, or the CPM bit of the header of each sector data is recorded on a limited type of DVD. For this reason, even if these can be referred to, only a limited type of DVD can be discriminated. Therefore, it is difficult for conventional techniques to determine the type of content for all types of DVDs.

  In view of the above problems, an object of the present invention is to realize an optical disc apparatus that can determine the type of content regardless of the type of optical disc.

  Means taken by the present invention to solve the above problem is an optical disk device for reproducing information recorded on an optical disk, which is recorded on the optical disk based on the exchange between the host device and the optical disk device. It is assumed that a system controller that determines the type of content and a control unit that controls the reproduction operation of the optical disc apparatus according to the determined type of content.

  According to the present invention, the type of content recorded on the optical disc is determined by the system controller based on the exchange between the host device and the optical disc playback device, and the control unit determines the type of content according to the determined type of content. The playback operation is controlled. Accordingly, the type of content can be determined regardless of the type of optical disc, and control adapted to the reproduction operation of the optical disc apparatus can be performed according to the determined type of content.

  Specifically, the system controller determines the type of content from information included in a command sent from the host device to the optical disk device.

  According to the present invention, the type of content recorded on the optical disc is determined by referring to the information included in the command sent from the host device to the optical disc device by the system controller. Thereby, the type of content can be easily determined.

  More specifically, the system controller determines the type of content from the success or failure result of the procedure based on the copyright protection technology between the host device and the optical disk device.

  According to the present invention, the system controller detects the success / failure result of the procedure based on the copyright protection technology between the host device and the optical disc device, and thereby determines the type of content recorded on the optical disc. Thereby, the type of content can be easily determined.

  Further, in order to solve the above problem, the present invention has taken measures to reproduce information recorded on the optical disc, and to record the content recorded on the optical disc from the application information written on the optical disc. It is assumed that a system controller for discriminating the type and a control unit for controlling the reproduction operation of the optical disc apparatus according to the discriminated content type are provided.

  According to the present invention, the type of content is determined by detecting the application information written on the optical disc by the system controller, and the reproduction operation of the optical disc apparatus is determined according to the determined type of content by the control unit. Control is performed. Since the application information is recorded regardless of the type of the optical disc, it is possible to determine the type of content regardless of the type of the optical disc, and playback of the optical disc apparatus according to the determined type of content. Control adapted to the operation can be performed.

  Specifically, the system controller determines that the content type is audio-video data when detecting information related to the video recorder as application information.

  According to the present invention, when information related to a video recorder is recorded on an optical disc, the system controller determines that the type of content recorded on the optical disc is audio-video data. Thereby, the type of content can be easily determined.

  Specifically, the system controller determines that the type of content is audio-video data when detecting information related to video creation software as application information.

  According to the present invention, when information relating to video creation software is recorded on an optical disc, the system controller determines that the type of content recorded on the optical disc is audio-video data. Thereby, the type of content can be easily determined.

  Specifically, the system controller determines that the type of content is audio-video data when detecting information related to audio creation software as application information.

  According to the present invention, when information related to audio creation software is recorded on an optical disc, the system controller determines that the type of content recorded on the optical disc is audio-video data. Thereby, the type of content can be easily determined.

  Specifically, the system controller outputs a control signal for controlling the rotation speed of the optical disc according to the determination result of the type of content, and the control unit is configured to control the optical disc based on the control signal. It is assumed that a disk rotation control unit for controlling the rotation speed of the disk is provided.

  According to the present invention, the rotation speed of the optical disc adapted to the reproduction operation of the optical disc apparatus is set according to the determined content type.

  More specifically, when the determined content type is audio video data, the system controller outputs a signal for setting the rotation speed relatively low, and the determined content type is the control signal. In the case of data other than audio video data, a signal for setting the rotational speed to be relatively high is output.

  According to the present invention, at the time of reproducing an optical disc on which data other than audio video data is recorded, the rotational speed is set to a high speed, but at the time of reproducing an optical disc on which audio video data is recorded, the rotational speed is set to a low speed. Therefore, noise, vibration, and power consumption of the optical disk device are reduced.

  More specifically, the system controller outputs a control signal for controlling the data communication speed between the host device and the optical disk device in accordance with the determination result of the content type. The communication speed control unit controls the data communication speed based on the control signal.

  According to the present invention, the data communication speed between the host device and the optical disc apparatus adapted to the reproduction operation of the optical disc apparatus is set according to the determined content type.

  More specifically, when the determined content type is audio video data, the system controller outputs a signal for setting the data communication speed relatively low as the control signal, and the determined content type. Is data other than audio-video data, a signal for setting the data communication speed to be relatively high is output.

  According to the present invention, the data communication speed is set to a high speed when reproducing an optical disk on which data other than audio video data is recorded, but the data communication speed is set to a low speed when reproducing an optical disk on which audio video data is recorded. Therefore, the generation of noise accompanying the increase in data communication speed and the power consumption of the host device and the optical disk device are reduced.

  On the other hand, the means taken by the present invention in order to solve the above problem is recorded on an optical disk loaded in the optical disk apparatus as a method of controlling the optical disk apparatus based on the exchange between the host apparatus and the optical disk apparatus. It is assumed that a determination step for determining the content type and a control step for controlling the reproduction operation of the optical disc apparatus according to the determined content type are provided.

  According to the present invention, the type of content recorded on the optical disc is discriminated from the exchange between the host device and the optical disc device, and the playback operation of the optical disc device is controlled according to the discriminated type of content. . Accordingly, the type of content can be determined regardless of the type of optical disc, and control adapted to the reproduction operation of the optical disc apparatus can be performed according to the determined type of content.

  Specifically, the determination step determines the type of content from information included in a command sent from the host device to the optical disk device.

  According to the present invention, the type of content recorded on the optical disc is determined from information included in the command sent from the host device to the optical disc apparatus. Thereby, the type of content can be easily determined.

  Specifically, in the determination step, the type of content is determined from the success or failure result of the procedure based on the copyright protection technology between the host device and the optical disk device.

  According to the present invention, the type of content recorded on the optical disc is determined from the result of success or failure of the procedure based on the copyright protection technology between the host device and the optical disc device. Thereby, the type of content can be easily determined.

  Further, in order to solve the above problem, the means taken by the present invention is to control the type of content recorded on the optical disc from the application information written on the optical disc loaded in the optical disc device. It is assumed that a determination step for determining and a control step for controlling the reproduction operation of the optical disc apparatus according to the determined type of content are provided.

  According to the present invention, the type of content recorded on the optical disc is determined from the application information written on the optical disc, and the playback operation of the optical disc apparatus is controlled according to the determined type of content. Since the application information is recorded regardless of the type of the optical disc, it is possible to determine the type of content regardless of the type of the optical disc, and playback of the optical disc apparatus according to the determined type of content. Control adapted to the operation can be performed.

  Specifically, the control step sets the rotational speed of the optical disc to be relatively low when the determined content type is audio-video data, and the determined content type is other than audio-video data. The rotation speed is set relatively high.

  According to the present invention, the rotation speed of the optical disk is set to be relatively low when the optical disk on which the audio video data is recorded is set, and the rotation speed of the optical disk is set on the playback of the optical disk on which data other than the audio video data is recorded. Is set relatively high. Thereby, the noise, vibration and power consumption of the optical disc apparatus are reduced.

  More specifically, the control step sets the data communication speed between the host device and the optical disk device to be relatively low when the determined content type is audio-video data, and determines the determined content type. When the type is other than audio video data, the data communication speed is set relatively high.

  According to the present invention, the data communication speed is set relatively low during playback of an optical disc on which audio video data is recorded, and the data communication speed is set relatively low during playback of an optical disc on which data other than audio video data is recorded. Is set high. As a result, the generation of noise accompanying the increase in data communication speed and the power consumption of the host device and the optical disk device are reduced.

  According to the present invention, regardless of the type of the optical disc, the type of content recorded on the optical disc is determined, and the reproduction operation of the optical disc apparatus is controlled according to the determined type of content. In particular, since audio / video data that does not require high-speed control can be controlled at a low speed, noise and vibration of the optical disk device and noise accompanying high-speed data communication, as well as the host device and the optical disk device It becomes possible to reduce the power consumption.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 shows a configuration of an optical disc apparatus according to the first embodiment of the present invention. The optical disk device 11 according to the present invention includes a system controller 12, a disk rotation control unit 13, a driver 14, a spindle motor 15, and a communication speed control unit 17. The system controller 12 discriminates the type of content recorded on the optical disc 16 loaded in the optical disc apparatus 11, and controls a control signal Sig1 for controlling the rotational speed of the spindle motor 15 according to the discriminated type of content. And the control signal Sig2 for controlling the data communication speed between the host apparatus 100 and the optical disk apparatus 11 is output. The disk rotation control unit 13 receives the control signal Sig1 output from the system controller 12, and sets the rotation speed of the spindle motor 15 via the driver 14 according to the content of the signal. The communication speed control unit 17 receives the control signal Sig2 output from the system controller 12, and sets the data communication speed between the host device 100 and the optical disk reproducing device 11 according to the content of the signal.

  Incidentally, there is Ultra DMA as one of data communication standards between the host device 100 and the optical disk device 11. According to this standard, when the host device 100 and the optical disk device 11 are activated, the upper limit communication speed is determined between these devices. After the determination, communication is possible if the communication speed is equal to or lower than the upper limit communication speed, and the system controller 12 determines this speed. Hereinafter, the optical disk device 11 according to the present embodiment will be described as being compliant with the Ultra DMA standard. However, this is for convenience of explanation and the present invention is not limited to this standard.

  Hereinafter, a method for controlling the reproduction operation of the optical disc apparatus 11 will be described.

  When reproducing the optical disc 16, a command specific to the system controller 12 is sent from the host device 100. Here, as a specific example, it is assumed that a “Read (12)” command is sent from the host device 100 to the system controller 12.

  FIG. 2 shows the format of the “Read (12)” command. When the host device 100 sets the “Streaming bit” defined in the format of the “Read (12)” command to “1” and transmits the command to the system controller 12, this is an audio video for the optical disc device 11. Means a data recovery command. Therefore, in this case, it is determined that the type of content recorded on the optical disc 16 is audio video data.

  FIG. 3 shows a flowchart of a method for controlling the reproduction operation of the optical disc apparatus 11 by command reference. After loading the optical disk 16, the system controller 12 refers to the “Read (12)” command transmitted from the host device 100 (S31). If the system controller 12 confirms that the “Streaming bit” is “1” in step S32, it is determined that the type of content recorded on the optical disc 16 is audio video data. Since the bit rate of the audio video data is determined in advance by the optical disc standard, when the optical disc 16 on which the data is recorded is reproduced, the rotation speed of the optical disc 16 and between the host device 100 and the optical disc device 11 are determined. It is not necessary to set the communication speed to the same high speed as that for reproducing data other than audio video data (for example, computer software or data). Accordingly, the system controller 12 causes the data to communicate between the control signal Sig1 that rotates the optical disc 16 and the host device 100 and the optical disc playback device 11 at a minimum speed necessary for reproducing the audio-video data. The control signal Sig2 is output to the disk rotation control unit 13 and the communication speed control unit 17, respectively. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to low speed (S33).

  On the other hand, if the system controller 12 confirms that the “Streaming bit” is “0” in step S32, it is determined that the type of content recorded on the optical disc 16 is data other than audio video data. . Therefore, the system controller 12 rotates the control signal Sig1 for rotating the optical disk 16 at a high speed and the control signal Sig2 for high-speed data communication between the host device 100 and the optical disk apparatus 11, respectively. The data is output to the control unit 13 and the communication speed control unit 17. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to high speed (S34).

  As described above, according to the present embodiment, the type of content on the optical disc 16 is determined with reference to the command sent from the host device 100. As a result, if the content type of the optical disk 16 is audio-video data, the optical disk device 11 reproduces the data with low-speed rotation and low-speed communication, so that noise, vibration, and data communication of the optical disk device 11 are increased. It is possible to reduce the accompanying noise and the power consumption of the host device and the optical disk device.

  Here, for convenience of explanation, the above-described determination step has been described assuming that the command sent from the host device 100 to the system controller 12 is only the “Read (12)” command, but the present invention is not limited to this. In addition to this command, the type of content may be determined from a command having specific information that can determine audio-video data.

(Second Embodiment)
Next, an optical disc device according to a second embodiment of the present invention will be described. Since the configuration of the optical disc apparatus according to the present embodiment is the same as the configuration shown in FIG. .

  When the optical disc 16 is reproduced, a procedure based on the copyright protection technology is performed between the host device 100 and the optical disc device 11. For example, there are three types of DVD copyright protection technologies: CSS (Content Scramble System), CPPM (Content Protection for Prerecorded Media), and CPRM (Content Protection for Recordable Media). CSS, CPPM, and CPRM are copyright protection methods for video recording of DVD-Video, DVD-Audio, and recordable DVD, respectively. Therefore, when a procedure based on CSS, CPPM, or CPRM is established between the host apparatus 100 and the optical disk apparatus 11 when the optical disk 16 is reproduced, the type of content recorded on the optical disk 16 is audio video data. I understand that there is.

  FIG. 4 is a flowchart showing a method for controlling the reproduction operation of the optical disc apparatus 11 according to a procedure based on the DVD copyright protection technology. After loading the optical disc 16, a procedure based on the copyright protection technology is performed between the host device 100 and the optical disc device 11 (S41). If a procedure based on CSS is established between the host device 100 and the optical disc device 11 in step S42, it is determined that the type of content recorded on the optical disc 16 is audio video data. Therefore, the system controller 12 communicates data between the control signal Sig1 for rotating the optical disc 16 and the host device 100 and the optical disc device 11 at a minimum speed necessary for reproducing the audio-video data. The control signal Sig2 is output to the disk rotation control unit 13 and the communication speed control unit 17, respectively. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to low speed (S43).

  On the other hand, when the procedure based on CSS is not established between the host device 100 and the optical disk device 11, the process proceeds to step S44. If a procedure based on CPPM is established between the host device 100 and the optical disc device 11 in step S44, it is determined that the content type recorded on the optical disc 16 is audio-video data, and the process proceeds to step S43. To do.

  On the other hand, if a procedure based on CPPM is not established between the host device 100 and the optical disk device 11 in step S44, the process proceeds to step S45. If a procedure based on CPRM is established between the host apparatus 100 and the optical disk apparatus 11 in step S45, it is determined that the type of content recorded on the optical disk 16 is audio video data, and the process proceeds to step S43. To do.

  On the other hand, if the procedure based on CPRM is not established between the host apparatus 100 and the optical disk apparatus 11 in step S45, it is determined that the optical disk 16 is not copyright-protected and recorded on the optical disk 16. It is determined that the content type is data other than audio video data. Therefore, the system controller 12 rotates the control signal Sig1 for rotating the optical disk 16 at a high speed and the control signal Sig2 for high-speed data communication between the host device 100 and the optical disk apparatus 11, respectively. The data is output to the control unit 13 and the communication speed control unit 17. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to high speed (S46).

  As described above, according to the present embodiment, the type of content recorded on the optical disc 16 can be easily determined by detecting the success or failure of the procedure based on the copyright protection technology between the host device 100 and the optical disc device 11. .

  For convenience of explanation, the discriminating step based on the procedure based on the copyright protection technology between the host device 100 and the optical disc device 11 is described for the DVD. However, the present invention is not limited to this. In addition to these, the type of content recorded on the optical disc 16 may be determined by a procedure based on copyright protection technology for other optical discs.

(Third embodiment)
Next, an optical disc device according to a third embodiment of the present invention will be described. Since the configuration of the optical disc apparatus according to the present embodiment is the same as the configuration shown in FIG. .

  Application information on which the data is written is recorded on the optical disk on which the data is written. This application information is written in common regardless of the type of optical disc. Application information relating to audio video data includes information relating to a video recorder that records data on an optical disc, and information relating to video creation software and audio creation software when data is recorded on an optical disc using the host device 100. .

  FIG. 5 shows a flowchart of a method for controlling the reproduction operation of the optical disc apparatus 11 based on the application information. The system controller 12 searches for application information held on the optical disc 16 (S51), and if it is confirmed in step S52 that the application information is information related to the video recorder, the content of the content recorded on the optical disc 16 is checked. It is determined that the type is audio video data. Therefore, the system controller 12 communicates data between the control signal Sig1 for rotating the optical disc 16 and the host device 100 and the optical disc device 11 at a minimum speed necessary for reproducing the audio-video data. The control signal Sig2 is output to the disk rotation control unit 13 and the communication speed control unit 17, respectively. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to low speed (S53).

  On the other hand, if it is confirmed in step S52 that the application information is not information related to the video recorder, the process proceeds to step S54. If it is confirmed in step S54 that the application information is information relating to video creation software, it is determined that the type of content recorded on the optical disc 16 is audio video data, and the process proceeds to step S53.

  On the other hand, if it is confirmed that the application information is not information related to the video creation software, the process proceeds to step S55. If it is confirmed in step S55 that the application information is information related to the audio creation software, it is determined that the type of content recorded on the optical disc 16 is audio video data, and the process proceeds to step S53.

  On the other hand, if it is confirmed in step S55 that the application information is not audio creation software, it is determined that the type of content recorded on the optical disc 16 is data other than audio video data. Therefore, the system controller 12 rotates the control signal Sig1 for rotating the optical disk 16 at a high speed and the control signal Sig2 for high-speed data communication between the host device 100 and the optical disk apparatus 11, respectively. The data is output to the control unit 13 and the communication speed control unit 17. The disk rotation control unit 13 and the communication speed control unit 17 that have received the respective control signals set the disk rotation speed and the data communication speed to high speed (S56).

  As described above, according to the present embodiment, the type of content recorded on the optical disc 16 can be easily determined by detecting the presence / absence of application information written in common regardless of the type of the optical disc.

  Here, for the sake of convenience of explanation, the determination step has been described assuming that the content of the application information is only information relating to the video recorder, information relating to video creation software, and information relating to audio creation software, but the present invention is not limited to this. In addition to the above, the content type of the optical disc 16 may be determined from application information unique to audio video data.

  In each of the above-described embodiments, the reproduction operation of the optical disc apparatus 11 is controlled in two ways, ie, the rotational speed control and the communication speed control. However, only one of these controls may be performed. Further, the same control as described above may be performed for elements other than the rotation speed and the communication speed.

  In addition, in order to increase the accuracy of determining the type of content recorded on the optical disc 16, a combination of two or more of the playback operation control methods of the optical disc apparatus 11 according to the first to third embodiments. Content type determination may be performed.

  The optical disc apparatus according to the present invention can reduce noise, vibration, and power consumption of the optical disc apparatus for reproduction of audio-video data, and is particularly useful for use as a portable computer peripheral device. It is.

1 is a configuration diagram of an optical disc apparatus according to a first embodiment of the present invention. It is a figure which shows the format of a "Read (12)" command. 10 is a flowchart of a method for controlling the reproduction operation of the optical disc device by command reference. 10 is a flowchart of a method for controlling the reproduction operation of the optical disc apparatus according to a procedure based on a DVD copyright protection technique. 10 is a flowchart of a method for controlling the reproduction operation of the optical disc apparatus based on application information.

Explanation of symbols

11 Optical disk device 12 System controller 13 Disk rotation control unit 17 Communication speed control unit 100 Host device
Sig1 control signal
Sig2 control signal

Claims (17)

An optical disk device for reproducing information recorded on an optical disk,
A system controller for determining the type of content recorded on the optical disc based on the exchange between the host device and the optical disc device;
An optical disc apparatus comprising: a control unit that controls a reproduction operation of the optical disc apparatus according to the determined type of content. The optical disc apparatus according to claim 1,
The optical disk apparatus, wherein the system controller determines the type of the content from information included in a command sent from the host apparatus to the optical disk apparatus. The optical disc apparatus according to claim 1,
The optical disc apparatus, wherein the system controller discriminates a type of the content from a result of success or failure of a procedure based on a copyright protection technique between the host device and the optical disc apparatus. An optical disk device for reproducing information recorded on an optical disk,
A system controller for determining the type of content recorded on the optical disc from application information written on the optical disc;
An optical disc apparatus comprising: a control unit that controls a reproduction operation of the optical disc apparatus according to the determined type of content. The optical disk apparatus according to claim 4, wherein
The method of controlling an optical disc apparatus, wherein the system controller determines that the content type is audio video data when detecting information relating to a video recorder as the application information. The optical disk apparatus according to claim 4, wherein
The method of controlling an optical disc apparatus, wherein the system controller determines that the content type is audio video data when detecting information related to video creation software as the application information. The optical disk apparatus according to claim 4, wherein
The method of controlling an optical disc apparatus, wherein the system controller determines that the type of content is audio video data when detecting information related to audio creation software as the application information. The optical disc apparatus according to any one of claims 1 and 4,
The system controller is
According to the determination result of the content type, a control signal for controlling the rotation speed of the optical disc is output.
The controller is
An optical disk apparatus comprising: a disk rotation control unit that controls the rotation speed based on the control signal. The optical disc apparatus according to claim 8, wherein
The system controller, as the control signal,
When the determined content type is audio-video data, a signal for setting the rotation speed relatively low is output,
An optical disc apparatus characterized by outputting a signal for setting the rotational speed to be relatively high when the determined content type is data other than audio-video data. The optical disc apparatus according to any one of claims 1 and 4,
The system controller is
A control signal for controlling a data communication speed between the host device and the optical disc device is output according to the determination result of the content type.
The controller is
An optical disc apparatus comprising: a communication speed control unit that controls the data communication speed based on the control signal. The optical disk apparatus according to claim 10, wherein
The system controller, as the control signal,
When the determined content type is audio-video data, a signal for setting the data communication speed relatively low is output,
An optical disc apparatus characterized by outputting a signal for setting the data communication speed relatively high when the determined content type is data other than audio-video data. A discriminating step for discriminating the type of content recorded on the optical disc loaded in the optical disc device based on the exchange between the host device and the optical disc device;
And a control step for controlling a reproduction operation of the optical disc apparatus in accordance with the determined type of content. The method of controlling an optical disc device according to claim 12,
The discriminating step discriminates the type of the content from information included in a command sent from the host device to the optical disc device. The method of controlling an optical disc device according to claim 12,
The discriminating step discriminates the type of content from the result of success or failure of a procedure based on a copyright protection technology between the host device and the optical disc device. A discriminating step for discriminating the type of content recorded on the optical disc from application information written on the optical disc loaded in the optical disc apparatus;
And a control step for controlling a reproduction operation of the optical disc apparatus in accordance with the determined type of content. The method of controlling an optical disc device according to any one of claims 12 and 15,
The control step includes
If the determined content type is audio video data, the rotational speed of the optical disc is set relatively low,
A control method for an optical disc apparatus, wherein when the determined content type is other than audio-video data, the rotation speed is set relatively high. The method of controlling an optical disc device according to any one of claims 12 and 15,
The control step includes
If the determined content type is audio video data, the data communication speed between the host device and the optical disc device is set relatively low,
A control method for an optical disc apparatus, wherein when the determined content type is other than audio-video data, the data communication speed is set relatively high.

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