JPWO2011040121A1 - Drive device, data recording / reproducing device, program, and recording medium - Google Patents

Abstract

Provided is a drive device capable of erasing data as if a detachable recording medium is loaded even when a detachable recording medium is not loaded. When the drive unit (300) obtains the storage unit (340) and a command for erasing data recorded in the erasure target area on the designated disk designated by the user, the drive unit (300) is associated with the erasure target area ( 340) Erasing the data recorded in the upper area, setting an erasure reservation of the data recorded in the erasure target area, and setting the erasure reservation when the designated disk is loaded Is erased from the erase target area on the specified disk.

Description

  The present invention relates to a data erasing method in a drive device that includes a non-removable recording medium and can be loaded with a removable recording medium, and a content recording / reproducing device including the drive device.

  Along with the spread of television receivers capable of high-definition display such as so-called full high-definition, a recorder apparatus capable of mounting a Blu-ray disc (BD) capable of recording large-capacity data such as full high-definition programs is also widely used. doing.

  Recorder devices that can be loaded with optical disks such as BDs include a type (hybrid recorder) with a built-in hard disk capable of recording data of a larger capacity than an optical disk, and a type without such a hard disk. (Straight recorder).

  Since the straight recorder records the recorded content on the optical disc loaded in the recorder device, the recorder device can be operated by the same operation method as a conventional recorder device such as a video deck. However, when the optical disc is not loaded and when the data capacity of the loaded optical disc is insufficient, the content cannot be recorded, and content recording failures increase. In addition, since an optical disk having a data reading speed and writing speed inferior to those of a hard disk is used, the user is likely to feel stress in the operation response.

  In a hybrid recorder (for example, Patent Documents 1 and 2), recording and playback using a hard disk having a higher data reading speed and writing speed than an optical disk is possible, and the user is less likely to feel stress in an operation response. . That is, the hybrid recorder solves the problems of the straight recorder described above.

  However, users who are unfamiliar with the hybrid recorder, such as elderly people, often cannot understand the operation method of the hybrid recorder because the concept that content is recorded on a hard disk is difficult to understand. In addition, when content is played back on another device, processing for copying the content recorded on the hard disk to the optical disc occurs. In this case, since it is necessary for the user to select an optical disk on which the content is to be recorded and to be loaded into the recorder device, there is a problem that a mistake such as recording the content on the optical disk unintended by the user occurs. .

  In Patent Document 3, when a designated optical disk is not loaded, the content is recorded on the hard disk, and when the designated optical disk is loaded in the drive, the content recorded on the hard disk is recorded on the designated optical disk. A hybrid recorder device for dubbing is disclosed.

  Patent Document 4 discloses a technique for recording reproduction / erasure information on a disk and executing reproduction / erasure of video data recorded on the disk when a time designated by the reproduction / erasure information comes. Has been.

Japanese Patent Publication “JP 2007-234137 A (published on September 13, 2007)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2005-50395 (published February 24, 2005)” Japanese Patent Gazette “Special Table 2007-517344 (June 28, 2007)” Japanese Patent Publication “JP 2006-66029 A (published March 9, 2006)”

  According to the hybrid recorder apparatus described in Patent Document 3, it is possible to execute reserved recording regardless of whether or not a designated optical disk is loaded. However, if the designated optical disk is not loaded, processing other than the reserved recording cannot be executed on the designated optical disk.

  The hybrid recorder device refers to the hard disk file system for content recorded on the hard disk, and refers to the loaded optical disk file system for content recorded on the loaded optical disk. . Since the file system of the loaded optical disk is deleted when the optical disk is removed from the optical disk drive, the hybrid recorder device cannot refer to the file system of the optical disk when the optical disk is not loaded. .

  Therefore, in the hybrid recorder device described in Patent Document 3, when the optical disk is not loaded, the content recorded on the optical disk cannot be accessed by referring to the file system of the optical disk. That is, even if a certain content can be recorded on the hard disk as a content to be written on a certain optical disc, the content can be processed as a component of a file system on the optical disc until the optical disc is loaded. Can not.

  In order to solve such a problem, it is conceivable to write data on the hard disk as data recorded on the virtual disk of the optical disk. Then, when the real disk (optical disk) is loaded, the data on the virtual disk is written into the real disk to synchronize the data between the virtual disk on the hard disk and the real disk.

  However, in this case, the free area on the virtual disk must match the free area on the real disk. In other words, the data recorded on the virtual disk must always match the data recorded on the real disk.

  For this reason, it is necessary to load the real disk into the drive when erasing data on the virtual disk, just as it is necessary to load the real disk into the drive when synchronizing data. Therefore, as a user, the data recorded on the hard disk cannot be erased freely regardless of whether or not the optical disk is loaded. Even if the technique disclosed in Patent Document 4 is used, the disk must be loaded in the apparatus in order to erase the data recorded on the disk.

  The present invention has been made in view of the above problems, and its main purpose is as if a detachable recording medium is loaded even when the detachable recording medium is not loaded. Provided is a drive device capable of erasing data.

In order to solve the above problems, a drive device according to the present invention provides
A non-removable recording medium;
When a write command for writing data to a specific write target area on a designated medium designated by a user among a plurality of removable recording media is acquired, the data is written to the non-detachable recording medium, A writing unit that records the area on the non-removable recording medium on which the data is written and the writing target area on the designated medium in association with each other;
Synchronization means for writing data written on the non-detachable recording medium to the write target area when the designated medium is loaded;
Further, when the writing means obtains an erasure command for erasing data recorded in a specific erasure target area on the designated medium, the writer deletes data on the non-removable recording medium associated with the erasure target area. Erase the data recorded in the area, set the erase reservation for the data recorded in the area to be erased,
The synchronization means is further characterized in that when the designated medium is loaded, the data for which the erasure reservation is set is erased from the area to be erased on the designated medium.

  In the drive device according to the present invention, when a write command for writing data to a specific write target area on a designated medium designated by the user is acquired, the data is written to the non-detachable recording medium and the data is written. The area on the non-detachable recording medium and the writing target area on the designated medium are recorded in association with each other, and the data written on the non-removable recording medium when the designated medium is loaded is stored in the writing target area. Write.

  In the drive device according to the present invention, when an erasure command for erasing data recorded in a specific erasure target area on the designated medium is acquired, an area on the non-removable recording medium associated with the erasure target area Erases the data recorded in the memory, and sets the erasure reservation for the data recorded in the erasure target area, and when the specified medium is loaded, erases the data for which the erasure reservation is set on the designated medium. Erase from the target area.

  As described above, the drive device according to the present invention erases the data recorded in the area on the non-detachable recording medium associated with the erase target area when the erase command is acquired, and records it in the erase target area. By setting an erasure reservation for the stored data, the data recorded in the erasure target area on the designated medium can be erased when the designated medium is loaded.

  As a result, in the drive device according to the present invention, even when the designated medium is not loaded in the drive device, the data can be erased as if the designated medium is loaded in the drive device. .

  That is, in the drive device according to the present invention, data recorded on a non-detachable recording medium can be freely erased regardless of whether or not a removable recording medium is loaded, thereby improving usability. Can do.

  In the drive device according to the present invention, when an erasure command for erasing data recorded in a specific erasure target area on a specified medium is acquired, the data is recorded in the non-detachable recording medium area associated with the erasure target area. When the specified data is erased, the erasure reservation of the data recorded in the erasure target area is set, and when the designated medium is loaded, the erasure target data is set to the erasure target area on the designated medium. Erase from

  As a result, in the drive device according to the present invention, even when the designated medium is not loaded in the drive device, the data can be erased as if the designated medium is loaded in the drive device. .

It is a block diagram which shows the principal part structure of the recorder apparatus which concerns on embodiment. It is a figure which shows the initialization process of the memory | storage part with which the drive part was equipped, (a) shows an example of the display in the display apparatus in the case of initialization of a memory | storage part, (b) is the memory | storage part after initialization process Is schematically shown. It is a figure which shows the registration process of an optical disk, (a) shows an example of the display in the display apparatus in the case of the registration process of an optical disk, (b) has shown typically the memory | storage part after the registration process of an optical disk. It is a figure which shows the reservation registration process in the recorder apparatus which concerns on embodiment, (a) shows the state of the memory | storage part after a reservation registration process typically, (b) shows the memory | storage part after a reservation registration process, and my disk. The state is schematically shown, and (c) shows an example of display on the display device during the reservation registration process. It is a figure which shows the video recording process in the state in which my disk is mounted, (a) shows the memory | storage part after a video recording process, and the state of my disk, (b) shows the memory | storage part after a video recording process. The state is shown schematically. It is a figure which shows the state of each memory | storage part at the time of recording the content 1, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area | region 1, (b) shows content 1 The map table at the time of recording is shown, and (c) shows the title management table when the content 1 is recorded. It is a figure which shows the recording process in the state in which the my disk is not mounted in the recorder apparatus which concerns on embodiment, (a) shows the state of the memory | storage part after a recording process typically, (b) is after a recording process The state of the storage unit is schematically shown. It is a figure which shows the state of each memory | storage part at the time of recording the content 2, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area | region 1, (b) shows the content 2 The map table at the time of recording is shown, and (c) shows the title management table when the content 2 is recorded. FIG. 3 is a diagram illustrating a state of a storage unit and a disc 1 after content synchronization processing. It is a figure which shows the state of each memory | storage part at the time of synchronizing the content 2, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area | region 1, (b) is content 2 Shows a map table when the contents 2 are synchronized, and (c) shows a title management table when the contents 2 are synchronized. It is a figure which shows the state of each memory | storage part at the time of carrying out the synchronous process of the content 2, (a) shows the state by which the content 3 which makes the start address the content 2 start address in the virtual disc image is recorded on the disc 1 , (B) shows a state in which the virtual disk image is changed so that the content 2 follows the content 3, (c) shows a map table when the content 2 is synchronized, and (d) synchronizes the content 2. The title management table at the time of processing is shown. It is a figure which shows the state of the memory | storage part and disc 1 when the content 4 is newly recorded after deleting the content 1 and the content 2 which were recorded on the area | region 1. FIG. It is a figure which shows the state of each memory | storage part at the time of recording the content 4, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area | region 1, (b) shows the content 4 It is a figure which shows the map table at the time of recording, (c) has shown the title management table at the time of recording the content 4. FIG. It is a figure which shows the state of each memory | storage part in case the disc 1 which recorded the contents 1-3 is mounted. It is the figure which showed typically the medium from which a content is read at the time of reproduction | regeneration in case My Disk is mounted. It is a figure which shows the state of each memory | storage part when the optical disk is not mounted in the drive part. It is the figure which showed typically the medium from which a content is read at the time of reproduction | regeneration, when not carrying my disk. It is the figure which showed typically the medium in which a content is edited when My Disk is mounted. It is the figure which showed the medium in which a content is edited typically, (a) has shown the medium used as the edit object when the disk 1 is not mounted, (b) is when the disk 1 is mounted Is reflected on the disk 1. It is a figure which shows the in-memory copy process in the recorder apparatus which concerns on embodiment, (a) shows the state of the memory | storage part after an in-memory copy process, (b) is title management in the memory | storage part after an in-memory copy process Indicates the state of the area. It is a figure which shows the data management using a file system, (a) shows an example of the file system recorded on the file system management area | region, (b) is the recording of the disc 1 corresponding to the recording state of the content in the area | region 1 FIG. 4C shows a map correspondence table of files constituting the content 1. It is a figure which shows typically the information of the title management table in a display apparatus. It is a figure which shows the state of each memory | storage part when the contents 1-3 are deleted in the state in which the disc 1 is not loaded, (a) is correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area 1 (B) shows a map table when the contents 1 to 3 are deleted, and (c) shows a title management table when the contents 1 to 3 are deleted. It is a figure which shows the state of each memory | storage part when the disc 1 is loaded, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area 1, (b) shows the disc 1 It is a figure which shows the map table at the time of loading. FIG. 6 is a diagram showing the state of each storage unit when contents 1 and 3 are deleted from area 1 in a state where no disk 1 is loaded, and (a) shows the recording of disk 1 corresponding to the content recording state in area 1; FIG. 5B shows a map table when the contents 1 and 3 are deleted from the area 1, and FIG. 5C is a title management table when the contents 1 and 3 are deleted from the area 1. Is shown. It is a figure which shows the state of each memory | storage part when the disc 1 is loaded, (a) shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area 1, (b) shows the disc 1 It is a figure which shows the map table at the time of loading.

  An embodiment of a recorder device provided with a drive device according to the present invention will be described below with reference to FIGS. 1 to 26 (a) and (b). Here, prior to explaining the content erasing process in the recorder device according to the present embodiment, an outline of the configuration of the recorder device and the operation of the recorder device according to the present embodiment will be described with reference to FIGS. explain.

  Since the drive device provided in the recorder device according to the present embodiment is realized as a device for writing data on an optical disk or reading data from an optical disk, this is hereinafter referred to as an optical disk drive device. As the optical disc, a BD (Blu-ray Disc), a DVD (Digital Versatile Disc), a CD (Compact Disc), and the like are assumed. However, the present invention is not limited to this, and can be generally applied to a drive device that writes data to a removable recording medium such as a flexible disk or a magneto-optical disk.

  The configuration of the recorder apparatus according to the present invention and the outline of the operation of the recorder apparatus will be described below. Note that the recorder device according to the present embodiment is a recorder device having not only a recording function for recording content on an optical disc, but also a playback function for playing back content recorded on a recording medium and content acquired from the outside.

<Configuration of recorder device 100>
The configuration of the recorder apparatus according to the present embodiment will be described below with reference to FIG. FIG. 1 is a block diagram showing a main configuration of the recorder device 100.

  As shown in FIG. 1, the recorder device 100 includes a back-end unit 200 that generally performs reproduction or recording (recording) of content input to the recorder device 100, reading of data from a loaded optical disc, and A drive unit 300 is provided that performs general data writing on a loaded optical disk.

  The drive unit 300 has the following new functions in addition to the functions of the conventional optical disc drive apparatus. That is, (1) a registration function for registering a plurality of optical discs designated by the user as My Discs, and (2) when a write command to the optical discs registered as My Discs is given from the back-end unit 200, data is stored on the optical discs. A write function for writing data to a memory provided in the drive unit 300, and (3) instead of reading data from the optical disk when a read command for the my disk is given from the back-end unit 200, A read function for reading data from the memory, and (4) instead of writing to the optical disk registered as My Disk, the data written to the memory is written to the optical disk, and the data recorded in the memory and the optical disk is read Synchronize And it has a period function. Then, the back-end unit 200 uses these new functions to record, play back, and edit content. Hereinafter, configuration examples of the back-end unit 200 and the drive unit 300 will be described in order below.

  As shown in FIG. 1, the back-end unit 200 includes a tuner unit 210, an encoder unit 220, a stream processing unit 230, a back-end control unit 240, a decoder unit 260, an image processing unit 270, a buffer unit 250, a storage unit 280, and an interface. Part 290. As shown in FIG. 1, the stream processing unit 230, the back-end control unit 240, the decoder unit 260, the image processing unit 270, the buffer unit 250, the storage unit 280, and the interface unit 290 are connected to each other via a bus line. ing.

  As shown in FIG. 1, the drive unit 300 includes an interface unit 310, a drive control unit 320, a disk drive unit 330, and a storage unit 340. As shown in FIG. 1, the interface unit 310, the drive control unit 320, the disk drive unit 330, and the storage unit 340 are connected to each other via a bus line.

  In this specification and the like, an optical disc associated with each area in the storage unit 340, that is, an optical disc in which the media ID of the storage unit 340 is recorded in the storage unit 340 is referred to as “my disc”.

  Each member with which the back end part 200 and the drive part 300 are provided is demonstrated below.

(Tuner unit 210, encoder unit 220)
The tuner unit 210 is a stream (Transport Stream: TS) in which video data, audio data, and the like are multiplexed from digital broadcast waves (for example, BS digital broadcast, CS digital broadcast, terrestrial digital broadcast) received by the antenna unit. To extract.

  The encoder unit 220 encodes the analog broadcast received by the antenna unit or the video / audio signal input from the outside into the MPEG2-TS format or the MPEG2-PS format.

(Stream processing unit 230, buffer unit 250)
The stream processing unit 230 separates and extracts individual data such as video data and audio data multiplexed in the extracted stream or the encoded stream, and a packet to which the same packet identifier (PID) is assigned. The content data (PES packet) is restored by connecting the payload portions of (TS). Further, content data input via a network by a communication unit (not shown) is also processed in the stream processing unit 230.

  The content data processed by the stream processing unit 230 is temporarily stored in the buffer unit 250. The buffer unit 250 is a memory that temporarily stores content data (video data, audio data, etc.) to be output to the display device or the drive unit 300. The buffer unit 250 generally uses a volatile memory, but may use a non-volatile memory.

(Backend control unit 240)
The back-end control unit 240 controls overall recording and reproduction of content data in the recorder device 100.

  When the content data restored in the stream processing unit 230 is recorded on the optical disc loaded in the drive unit 300, the back-end control unit 240 performs drive control via the interface unit 290 for a write command for writing to the optical disc. The content data to be written is read from the buffer unit 250 and output to the drive unit 300 via the interface unit 290.

  When playing back the content data recorded on the optical disk loaded in the drive unit 300, the back-end control unit 240 sends a read command for reading the content data from the optical disk to the drive unit 300, and the interface unit 290. To the drive control unit 320. At this time, the content data read from the optical disc is temporarily stored in the buffer unit 250.

  Further, when outputting the content data stored in the buffer unit 250 to the display device, the back-end control unit 240 controls the decoder unit 260 to decode the content data read from the buffer unit 250.

(Decoder unit 260)
In response to an instruction from the back-end control unit 240, the decoder unit 260 converts the content data stored in the buffer unit 250 into a clock (System Time Clock: STC) value generated in the back-end unit 200. Content data to which a matching time stamp (PTS) is assigned is read. Then, the read content data is decoded and output to the image processing unit 270.

(Image processing unit 270)
The image processing unit 270 performs high quality processing such as pixel interpolation and color adjustment to improve the display performance of moving image data such as frame rate conversion, and the moving image data subjected to the high quality processing Is output to a display device (not shown). That is, the image processing unit 270 generates a frame image to be used when actually displayed on the display device from the frame image decoded (decoded) by the decoder unit 260.

  When additional information (for example, subtitles, title list, menu information, icons, etc.) is superimposed on the image displayed on the display device, the image processing unit 270 applies to the moving image data subjected to the quality enhancement processing. To superimpose necessary additional information.

(Storage unit 280)
The storage unit 280 stores a program for operating the back-end control unit 240 and various data referred to by the back-end control unit 240. Examples of data referred to by the back-end control unit 240 include reservation information and title management information. Details of the reservation information and the title management information will be described in detail below, and the description thereof is omitted here. Note that the storage unit 280 is preferably a non-volatile memory whose recorded contents are not erased even when the power is turned off.

(Interface units 290 and 310)
The interface unit 290 outputs the input data to the drive unit 300 via the interface unit 310. Examples of the interface unit 290 include SATA (Serial AT attachment). Note that ATA (AT attachment) is not limited to SATA whose transfer method is serial ATA, and PATA whose transfer method is parallel ATA may be used.

  The interface unit 310 outputs the input data to the backend unit 200 via the interface unit 290. The interface unit 310 can also be SATA (Serial AT attachment) or the like, like the interface unit 290, but the interface unit 290 and the interface unit 310 are preferably interfaces of the same standard.

  In the present embodiment, the case where the interface units 290 and 310 are SATA will be described as an example.

(Drive control unit 320)
The drive control unit 320 controls reading of data from the optical disc loaded in the disc drive unit 330 and writing of data to the optical disc, reading of data from the storage unit 340, and data to the storage unit 340. Control writing.

  In the drive control unit 320, a command (a data read command from the optical disc or a data write command to the optical disc) input from the back end control unit 240 that is input via the interface unit 310, a data read command from the storage unit 340, Alternatively, it is replaced with a data write command to the storage unit 340. However, when the command from the back end control unit 240 is a read command for data not stored in the storage unit 340, the drive control unit 320 does not replace the command from the back end control unit 240 and loads Read data from the optical disc.

  When the interface units 290 and 310 are ATA interfaces, a write command and a read command from the back-end control unit 240 are ATA commands.

  Further, in this embodiment, in order to realize a data write command for a predetermined area, information (disk designation information) indicating which area (my disk to be described later) in the storage unit 340 is to write data. It is preferable to include the command and output it to the drive control unit 320. Of course, in addition to using a command including disk designation information, a command indicating the disk designation information is output in advance to designate a recording target area (my disk) in the storage unit 340, and then a write command and write target data are represented. The command may be output to the drive control unit 320. In any case, the write command includes disk designation information and an address (first area designation information) that designates an area in which data is to be written. Note that the data to be written is output from the back end unit 200 to the drive unit 300 together with the write command.

  This is not limited to the write command, and the same applies to the read command.

(Disc drive unit 330)
The disk drive unit 330 operates based on an instruction from the drive control unit 320, and reads data from the loaded optical disk or writes data to the optical disk.

  The disk drive unit 330 includes an optical pickup unit for reading data from a loaded optical disk and writing data to the optical disk.

(Storage unit 340)
The storage unit 340 is a data memory that stores data such as content data to be recorded on the optical disc in the recorder device 100. The recording of content data in the storage unit 340 will be described in detail below, and the description thereof is omitted here.

  The storage unit 340 is not particularly limited as long as the data access speed is higher than that of the optical disc, but is preferably a nonvolatile memory in which recorded contents are not erased even when the power is turned off. More specifically, it is preferable to use a flash memory.

(Processing operation of recorder device 100)
Next, the playback operation, recording operation, dubbing operation, and the like of the recorder device 100 will be described. Prior to the description of each operation in the recorder device 100, the presetting in the recorder device 100 will be described with reference to FIG. This will be described with reference to (b) and FIGS. 3 (a) and 3 (b). The presetting in the recorder apparatus 100 can be broadly divided into two types: an initialization process for the storage unit 340 and an optical disk registration process for the storage unit 340.

<Initialization Processing of Storage Unit 340>
The initialization process of the storage unit 340 will be described with reference to (a) and (b) of FIG. 2A and 2B are diagrams illustrating an initialization process of the storage unit 340. FIG. 2A is a diagram illustrating an example of display on the display device when the storage unit 340 is initialized. (B) is a diagram schematically showing the storage unit 340 after the initialization process.

  The initialization process of the storage unit 340 is a process of virtually dividing the storage area in the storage unit 340 into as many partitions as the user desires. Note that the initialization processing of the storage unit 340 is executed only when the storage area is not virtually divided in the storage unit 340, and therefore the initialization processing in the storage unit 340 has already been performed. The initialization process is not executed for.

  The initialization process is executed by receiving an initialization process execution instruction from the user via the operation input unit. That is, when the back-end control unit 240 receives an initialization processing execution instruction from the user, the back-end control unit 240 virtually determines the storage area of the storage unit 340 to the number designated by the user with respect to the drive control unit 320. Instruct to split. In response to the instruction from the back-end control unit 240, the drive control unit 320 virtually divides the storage unit 340 into a specified number of areas (partitions). The number of areas divided in the storage unit 340 matches the number of My Disks that can be registered. At this time, it is preferable to display an image as shown in FIG.

  Note that the number of regions virtually divided in the storage unit 340 may be a number explicitly designated by the user, such as “n (sheets)”, or may be a recording desired by the user. The number may be set according to the image quality.

  FIG. 2B shows the storage unit 340 after the initialization process. As shown in FIG. 2B, the storage unit 340 is virtually divided into n regions (region 1 to region n) desired by the user. In addition to the areas 1 to n, the storage unit 340 is provided with a management area in which management information for managing the areas 1 to n is recorded.

  As shown in FIG. 2B, the management area can be divided into a my disk management area for managing the areas 1 to n and a memory management area for managing the my disk management area.

  In the my disk management area, management information for managing the areas 1 to n is recorded. In FIG. 2B, for convenience, an area in which management information for managing area 1 is recorded is referred to as “entry 1”, and an area in which management information for managing areas 2 to n is similarly recorded. Called entries 2-n.

  In entry 1 managing area 1, an entry number, an allocation flag, media ID information, allocation area information, media key information, and map information are recorded. Each of these pieces of information will be described below.

  “Entry number” is information indicating which area is to be managed. For example, since entry 1 is management information for managing area 1, information indicating “1” is recorded as the entry number.

  The “assignment flag” is a flag indicating whether or not the area is associated with MyDisk. In the state immediately after the initialization process, since my disk is not associated, information indicating that the assignment is not performed (here, “0”) is recorded.

  “Media ID” is information indicating the media ID of the optical disc. In the initialization process stage, the media ID information is not recorded. The recording of the media ID information will be described later in the optical disk registration process.

  The “allocation area information” is information indicating a recording area of the storage unit 340 that can be used as each area. As specific examples of the allocation area information, for example, the start address and the end address of each area can be cited. Further, the recording capacity of each area may be recorded instead of the end address.

  “Media key information” is key information for executing encryption used for copyright protection when data is recorded on an optical disc. Examples of the media key information include MKB (Media Key Block).

  “Map information” includes, for each content recorded on the optical disc, a virtual address that is an address indicating an area of the optical disc in which the content is recorded, and an address that indicates an area on the storage unit 340 in which the content is recorded. This is information indicating the association with the physical address. The details of the map table recorded as the map information will be described in detail below, and the description is omitted here.

  Further, as shown in FIG. 2B, “entry number information” and “allocation area information” are recorded in the memory management area. “Number of entries” is information indicating the number of regions virtually divided in the storage unit 340. “Allocation area information” is information indicating an area used as a My Disk management area in the storage unit 340.

  Note that a surplus area generated when the storage unit 340 is virtually divided into the areas 1 to n may be used as a spare area.

<Optical disk registration process>
Next, an optical disk registration process with respect to the storage unit 340 will be described with reference to FIGS. 3A and 3B are diagrams showing an optical disk registration process, FIG. 3A is a diagram showing an example of display on the display device during the optical disk registration process, and FIG. It is the figure which showed typically the memory | storage part 340 after the registration process of an optical disk.

  The optical disk registration process is a process of recording the media ID of the optical disk for the entry managing each area virtually divided in the storage unit 340.

  When the optical disk is loaded in the drive unit 300, the drive control unit 320 instructs the disk drive unit 330 to read the media ID of the optical disk from the loaded optical disk. When the disk drive unit 330 reads the media ID from the optical disk, the drive control unit 320 determines whether the media ID read in the storage unit 340 is a media ID already recorded in an entry in the my disk management area. .

  When the read media ID is not recorded in any of the entries in the my disk management area, the drive control unit 320 indicates that the allocation flag is not allocated to the optical disk among the entries in the my disk management area. The read media ID is recorded in the entry “0”. Thereby, the media ID information is recorded in the entry. Note that the allocation flag in the entry in which the media ID information is recorded is changed to “1” indicating that the allocation is performed at the time when the media ID information is recorded. Also, information unique to the optical disc such as media key information is also recorded for the entry that recorded the media ID information at this time.

  In the above-described optical disk registration process, the case where the read media ID is automatically recorded in the entry whose assignment flag is “0” has been described. It is preferable to ask the user whether or not to record in the entry. In this case, the drive control unit 320 records the media ID in response to an instruction from the user that the recorder device 100 records the media ID in the entry.

  In addition, when there are a plurality of entries having an allocation flag “0”, the user may be able to select which entry the media ID is recorded on. In this case, the drive control unit 320 records the media ID for the entry specified by the user.

  When recording the media ID in the entry, it is preferable to display an image as shown in FIG. 3A on the display device.

  FIG. 3B shows the state of the storage unit 340 after registration of the optical disc when the optical disc having the media ID “aaa” is recorded in the entry 1.

  When the media ID of the optical disk is recorded in entry 1, the optical disk is associated with area 1 managed by entry 1, as shown in FIG.

  In this specification and the like, an optical disc associated with each area in the storage unit 340, that is, an optical disc in which the media ID of the storage unit 340 is recorded in the storage unit 340 is referred to as “my disc”. In addition, in order to identify the My Disk, here, the My Disk associated with the area 1 is referred to as “Disk 1”. Similarly, the my disk associated with the areas 2 to n will be referred to as “disks 2 to n”.

<Reserved video recording operation>
The following describes the content recording operation, content playback operation, content editing operation, and content copy operation in the recorder apparatus 100 for which the above-described preset settings have been completed.

  The content recording operation in the recorder apparatus 100 will be described below with reference to FIGS. 4 (a) to (c) to FIG. 13 (a) to (c). Here, the reservation recording process will be described as an example of the content recording operation.

  The reservation recording process in the recorder apparatus 100 can be roughly divided into two processes, a reservation registration process and a recording process. The recording process can be further divided into two processes: a recording process in a state where a My Disk is loaded and a recording process in a state where a My Disk is not loaded. Each of these processes in the scheduled recording process will be described below.

(Reservation registration process)
First, reservation registration processing in the recorder device 100 will be described below with reference to FIGS. 4A to 4C are diagrams illustrating reservation registration processing in the recorder device 100, and FIG. 4A is a diagram schematically illustrating the state of the storage unit 280 after the reservation registration processing. FIG. 6B is a diagram schematically showing the state of the storage unit 340 and the MyDisk 1 after the reservation registration process, and FIG. 5C is a diagram showing an example of display on the display device during the reservation registration process.

  The reservation registration process is a process for registering reservation information in the storage unit 280 and the optical disc. The reservation registration process will be described by taking as an example a case where the disk 1 associated with the area 1 of the storage unit 340 is loaded.

  When the user inputs reservation information via the operation input unit, the back-end control unit 240 records the input reservation information in the reservation information management area of the storage unit 280. At this time, the reservation information recorded in the reservation information management area of the storage unit 280 includes “recording channel”, “recording date” and “recording time” as well as “recording time” as shown in FIG. Information on “Target My Disk” is included. Hereinafter, the medium ID of the loaded MyDisk will be described as an example of the recording target MyDisk information. However, other information may be used as long as the information can identify the MyDisk. Each piece of information included in the reservation information may be input by the user, or may be set based on program information representing a program selected by the user in the electronic program guide.

  The back-end control unit 240 records the reservation information in the storage unit 280 and instructs the drive control unit 320 to write the reservation information to the disk 1 loaded in the drive unit 300. In response to the instruction from the back-end control unit 240, the drive control unit 320 instructs the disk drive unit 330 to record the reservation information set by the user on the disk 1. In response to an instruction from the drive control unit 320, the disk drive unit 330 records the reservation information set by the user in a predetermined area (reservation information management area) of the disk 1 ((b) of FIG. 4). At this time, since the media ID is already recorded on the disc 1, it is not necessary to record the media ID.

  It should be noted that the user may be able to select the recording target my disk when setting the reservation information. In this case, if the recording target my disk selected by the user is not loaded in the drive unit 300, the user is warned to load the target my disk in the drive unit 300 at the time of registration of the reservation information. It is preferable to do so.

  FIG. 4C shows an example of an image displayed on the display device at the time of reservation registration when the disc 1 associated with the area 1 of the storage unit 340 is loaded.

(Recording process when My Disk is loaded)
Next, with respect to the recording process in the case where a My Disk having the media ID included in the reservation information recorded in the reservation information management area of the storage unit 280 is loaded in the drive unit 300, (a) in FIG. This will be described below with reference to (b). (A) and (b) of FIG. 5 are diagrams showing a recording process in a state where the My Disc is loaded, and (a) schematically shows the states of the storage unit 340 and the My Disc 1 after the recording process. (B) is a diagram schematically showing the state of the storage unit 280 after the recording process.

  When the recording of the content 1 is completed, as shown in FIG. 5B, the back-end control unit 240 deletes the reservation information indicating the reservation recording of the content 1 from the reservation information management area in the storage unit 280. When the recording of the content 1 on the disc 1 is completed, the drive control unit 320 instructs the disc drive unit 330 to erase the reservation information recorded in the reservation information management area of the disc 1.

  Next, the state of the storage unit 340 and the storage unit 280 when the content 1 is recorded in the area 1 of the storage unit 340 and the disc 1 will be described below with reference to FIGS. 6A to 6C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 1 is recorded. FIG. 6A shows the recording state of the content in the area 1 of the storage unit 340. It is a figure which shows the corresponding relationship of the recording state of the corresponding disc 1, (b) is a figure which shows the map table at the time of recording the content 1, (c) is a title management table at the time of recording the content 1 FIG.

  Here, generally, the data capacities of the area 1 of the storage unit 340 and the disk 1 are different. Therefore, in the area 1, a virtual address that matches the address (first area designation information) in the disk 1 is assigned separately from the physical address. By reading or writing data using this virtual address, the content stored in the storage unit 340 is recorded on the disc 1 loaded in the drive unit 300 in the back-end unit 200. Can be handled. In this specification and the like, a storage area represented by using a virtual address set in each area of the storage unit 340 is referred to as a “virtual disk image”.

  FIG. 6A shows a virtual disk image in the area 1 of the storage unit 340. As shown in FIG. 6A, in the area 1 of the storage unit 340, content 1 (data capacity: XGB) is recorded with the physical address (second area designation information) “0x000” as the head address. On the virtual disk image, the content 1 is recorded with the virtual address “0x050” as the head address. That is, when the content 1 is written to the disc 1, the drive control unit 320 instructs the disc drive unit 330 to write the content 1 from the sector representing the address “0x050” of the disc 1. As a result, content recording from the area 1 to the disc 1 can be easily executed.

  Next, a map table for realizing the association between the physical address and the virtual address shown in FIG. 6A will be described with reference to FIG.

  The map table is recorded as map information in the My Disk management area of the storage unit 340. As shown in FIG. 6B, the map table records a virtual disk map representing a map in the virtual disk image and a memory map representing a map in the area 1 of the storage unit 340 in association with each content. ing. Further, a synchronization flag indicating whether or not the content is recorded on the My Disc is recorded in association with the content.

  In this specification and the like, a state where content recorded in a certain area of the storage unit 340 is recorded on a My Disk associated with the certain area is referred to as “synchronization”. Similarly, a process in which content recorded in a certain area of the storage unit 340 is recorded on a My Disk associated with the certain area is referred to as “synchronization process”.

  In the map table, content 1 is recorded in area 1 and the content is updated. FIG. 6B shows a map table when the area 1 of the storage unit 340 is in the state shown in FIG. As shown in FIG. 6B, in the map table, “0x050” is set as the head address in the virtual disk map in content 1, XGB is set as the data size, and “0x000” is set as the head address in the memory map. Is set, and XGB is set as the data size. Further, the writing from the area 1 to the disc 1 is completed, and the synchronization flag in the map table becomes “1” indicating that the content is recorded on the My Disc.

  By referring to such a map table, the drive control unit 320 that has received a write command to the disk 1 from the back-end control unit 240 sends the write command to the disk 1 received from the back-end control unit 240 to the area 1. Can be changed to a write command. Similarly, a read command from the disk 1 can be changed to a read command from the area 1 by referring to the map table.

  The entry parameter in FIG. 6B is an area for recording an entry number, media ID information, allocation area information, and the like, and the entry data area is for recording media key information and track information in area 1. It is an area to do.

  Further, the content 1 is recorded in the area 1, and the title management table recorded as the title management information in the title management area of the disc 1 in the storage unit 280 is updated. The title management table recorded in the content management area in which information related to the content 1 is set will be described with reference to FIG. Note that as many title management areas as the number of areas virtually divided in the storage unit 340 are provided in the storage unit 280.

  In the title management table, as shown in FIG. 6C, for the title name indicating each content, the required time for content reproduction, the image quality of the content reproduction, and the number of remaining dubbing times (maximum 10). In addition, information indicating the synchronization state is recorded in association with each other. Note that a title indicating the content 1 is described as a title 1. Similarly, titles indicating content 2 to content n are written as title 2 to title n.

  An example of the title management table when the map table shown in FIG. 6B is set is shown in FIG. At this time, since the content 1 is recorded on the disc 1, the remaining dubbing count in the title 1 is subtracted once from the remaining 10 times to “9” times.

(Recording process when My Disk is not loaded)
Next, with respect to the recording process when the My Disk having the media ID included in the reservation information recorded in the reservation information management area of the storage unit 280 is not loaded in the drive unit 300, (a) in FIG. This will be described below with reference to (b). (A) and (b) of FIG. 7 are diagrams showing a recording process in a state where the my disk is not loaded in the recorder apparatus 100, and (a) schematically shows the state of the storage unit 340 after the recording process. (B) is a diagram schematically showing the state of the storage unit 280 after the recording process.

  In the recorder apparatus 100, when the recording of the content (content 2) recorded by the reservation information recorded in the reservation information management area of the storage unit 280 is started, the disc 1 is not loaded in the drive unit 300. Even so, the back-end control unit 240 instructs the drive control unit 320 to record the content 2 on the disc 1. The drive control unit 320 that has received an instruction from the back-end control unit 240 receives a write command from the back-end unit 200 to the disk 1 in the area 1 of the storage unit 340 because the disk 1 is not loaded in the disk drive unit 330. The content 2 is recorded in the area 1. At this time, since the disc 1 is not loaded in the drive unit 300, the process of recording the content 2 on the disc 1 is not executed.

  When the recording of the content 2 is completed, as shown in FIG. 7B, the back-end control unit 240 deletes the reservation information indicating the reservation recording of the content 2 from the reservation information management area in the storage unit 280.

  Next, the state of the storage unit 340 and the storage unit 280 when the content 2 is recorded in the area 1 of the storage unit 340 will be described below with reference to FIGS. 8A to 8C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is recorded, and FIG. 8A shows the recording state of the content in the area 1 of the storage unit 340. It is a figure which shows the corresponding relationship of the recording state of the corresponding disc 1, (b) is a figure which shows the map table at the time of recording the content 2, (c) is a title management table at the time of recording the content 2 FIG.

  As shown in FIG. 8A, since content 1 (data capacity: XGB) is recorded with the physical address “0x000” in the area 1 of the storage unit 340 as the head address, content 2 (data capacity: XGB) is recorded. Is recorded following the content 1 with the physical address “0x200” in the area 1 of the storage unit 340 as the head address. At this time, the content 2 is recorded following the content 1 with the virtual address “0x250” as the head address even on the virtual disk image. Since the disc 1 is not loaded in the drive unit 300, the content 2 is naturally not recorded on the disc 1.

  The content 2 is recorded in the area 1, and the map table recorded in the map information in the entry 1 of the storage unit 340 is also updated. FIG. 8B shows a map table in which the area 1 of the storage unit 340 is in the state shown in FIG. As shown in FIG. 8B, in addition to the map table shown in FIG. 6B, “0x250” is set as the start address in the virtual disk map in content 2, and XGB is set as the data size. “0x200” is set as the head address in the memory map, and XGB is set as the data size. At this time, since writing from the area 1 to the disc 1 is not executed, the synchronization flag of the content 2 in the map table is “0” indicating that the content is not recorded on the My Disc.

  FIG. 8C shows an example of the title management table when the map table shown in FIG. 8B is set. As shown in FIG. 8C, in the title management table, in addition to the title management information of the title 1 indicating the content 1 shown in FIG. 6C, the title management information of the title 2 indicating the content 2 is stored. Added. Since the title 2 is not recorded on the disc 1 at this time, the remaining dubbing count in the title 2 remains “10”, and the synchronization state is information indicating unsynchronization.

(Content synchronization processing)
Next, with regard to the synchronization processing for recording content recorded in the storage unit 340 but not recorded on the My Disc on the My Disc, (a) to (c) of FIGS. Will be described below.

  When the disc 1 is loaded in the drive unit 300, the drive control unit 320 refers to the map table of the entry 1 and determines whether there is content whose synchronization flag is “0”. For example, when there is content 2 whose synchronization flag is “0”, the drive control unit 320 records the content 2 recorded in the area 1 of the storage unit 340 on the disc 1 so as to record (write out) the content 2 on the disc 1. The unit 330 is instructed. The disc drive unit 330 writes the content 2 recorded in the area 1 of the storage unit 340 to the disc 1 in response to an instruction from the drive control unit 320. As a result, the contents 1 and 2 recorded in the area 1 of the storage unit 340 are both recorded on the disc 1 (FIG. 9). That is, the content 2 is in a synchronized state.

  When the writing of the content 2 to the disc 1 is completed, the drive control unit 320 notifies the back-end unit 200 that the content 2 synchronization processing has been completed. Upon receiving this notification, the back end control unit 240 updates the title management table recorded in the title management area of the disc 1 in the storage unit 280.

  Further, when the writing of the content 2 to the disc 1 is completed, the drive control unit 320 instructs the disc drive unit 330 to erase the reservation information for pre-recording the content 2 recorded on the disc 1. Upon receiving the instruction, the disk drive unit 330 deletes reservation information for reservation recording of the content 2 recorded in the reservation information management area of the disk 1 (FIG. 9). FIG. 9 is a diagram showing the state of the storage unit 340 and the disc 1 after the content synchronization processing.

  Next, the state of the storage unit 340 and the storage unit 280 when the content 2 recorded in the area 1 of the storage unit 340 is written to the disc 1 will be described below with reference to FIGS. explain. 10A to 10C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is synchronously processed. FIG. 10A is a recording state of the content in the area 1 of the storage unit 340. FIG. 5B is a diagram showing a map table when the content 2 is synchronously processed, and FIG. 8C is a diagram when the content 2 is synchronously processed. It is a figure which shows the title management table.

  As shown in FIG. 10A, in the virtual disk image, the content 2 is recorded with the virtual address “0x250” as the head address. At this time, since the content 1 can be recorded on the disc 1 with “0x250” as the head address, the content 2 is recorded on the disc 1 with the address “0x250” of the disc 1 as the head address.

  When the synchronization processing of the content 2 is completed, as shown in FIG. 10B, the synchronization flag of the map table recorded in the map information of the entry 1 indicates that the content is recorded on the My Disk. 1 ". Further, as shown in FIG. 10C, in the title management table of the disc 1 recorded in the storage unit 280, the remaining dubbing count in the title 2 is decremented by 1 to “9” times, and the synchronization state Is changed to information indicating synchronization.

  Next, with respect to the synchronization processing of the content 2 when the content (content 3) having “0x250” as the head address has already been recorded on the disc 1, the following will be described with reference to FIGS. explain.

  11A to 11D are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is synchronously processed. FIG. 11A shows the start address of the content 2 in the virtual disk image. FIG. 7 is a diagram showing a state where content 3 as an address is recorded on the disc 1, (b) is a diagram showing a state where the virtual disc image is changed so that the content 2 follows the content 3, and (c). It is a figure which shows the map table at the time of synchronizing the content 2, (d) is a figure which shows the title management table at the time of synchronizing the content 2. FIG.

  As shown in FIG. 11A, when content 3 having a head address “0x250”, which is the head address of content 2 in the virtual disk image, is already recorded on the disk 1, the address “0x250” of the disk 1 is recorded. The content 2 cannot be recorded on the disc 1 with the leading address.

  At this time, the drive control unit 320 can record the content 2 on the disc 1 by changing the virtual disc image in the storage unit 340. That is, the drive control unit 320 sets the content 3 recorded with the address “0x250” as the head address in the disk 1 so that the virtual address “0x250” is recorded as the head address in the virtual disk image. The content 2 is set to follow the content 3 so that the virtual address “0x400” is recorded as the head address. That is, the drive control unit 320 changes the virtual disk image in the area 1. Thus, in the changed virtual disk image, the start address of the content 2 is “0x400”, so that the content 2 can be recorded on the disk 1 with “0x400” as the start address.

  At this time, the map table of region 1 is also changed as shown in FIG. That is, the top address of the content 2 in the virtual disc map is “0x400”, which is “1” indicating that the content is recorded on the My Disc. Also, in the virtual disk map, the content 3 having a head address “0x250” and a content capacity of YGB is registered. Since the content 3 is content that is not recorded in the area 1, the start address is not recorded in the memory map, and the synchronization flag is not recorded.

  Similarly, as shown in FIG. 11D, in the title management table of the disc 1 in the storage unit 280, the synchronization state associated with the title 2 is changed to information indicating synchronization, and the title 3 indicating the content 3 is displayed. Information (reproduction time and reproduction image quality) associated with is registered. At this time, the content 3 is content recorded only on the disc 1 and cannot be dubbed, so the remaining number of times of dubbing in the title 3 is not displayed.

(When content is deleted when My Disc is loaded)
Next, a case where content is deleted while My Disk is loaded will be described. Note that the deletion of content in a state where no My Disc is loaded will be described in detail below, and the description thereof is omitted here.

  When the free space of the area 1 in the storage unit 340 is reduced, the content recorded in the area 1 may be deleted. The deletion of the content recorded in the area 1 may be executed according to a user instruction, or may be automatically executed when the free space in the area 1 becomes a predetermined value or less. Good.

  FIG. 12 is a diagram illustrating a state of the storage unit 340 and the disk 1 when the content 4 is newly recorded after the content 1 and the content 2 recorded in the area 1 are deleted. In FIG. 12, the content 4 is also recorded on the disc 1 for recording in a state where the My Disc is loaded.

  The states shown in FIG. 12, that is, the states of the storage unit 340 and the storage unit 280 when the content 4 is recorded in the region 1 after deleting the content 1 and the content 2 from the region 1, are shown in FIGS. The following will be described with reference to FIG. 13A to 13C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 4 is recorded. FIG. 13A shows the recording state of the content in the area 1 of the storage unit 340. It is a figure which shows the corresponding relationship of the recording state of the corresponding disc 1, (b) is a figure which shows the map table at the time of recording the content 4, (c) is a title management table at the time of recording the content 4 FIG.

  When the content 1 and the content 2 are deleted from the area 1, the drive control unit 320 deletes information regarding the content 1 and the content 2 from the memory map in the map table recorded in the entry 1 of the storage unit 340. The drive control unit 320 also deletes the synchronization flag associated with the contents 1 and 2. As described above, the content deletion in the state where the My Disk is loaded is the same as the content deletion in the hybrid recorder device.

  However, in the present embodiment, as shown in FIG. 13A, the contents 1 and 2 are left without being erased on the virtual disk image. That is, as shown in FIG. 13B, even if the contents 1 and 2 are deleted from the area 1, the information on the contents 1 and 2 is not deleted from the virtual disk map in the map table. It will be.

  Therefore, the drive control unit 320 instructs the disk drive unit 330 to record the content 4 so as to follow the content 2 already recorded in the virtual disk image, that is, the virtual address “0x650”.

  Further, as shown in FIG. 13C, the title management table in the storage unit 280 is also changed as the contents 1 and 2 are deleted from the area 1. When the content 1 and the content 2 recorded in the area 1 are deleted, the back-end control unit 240 deletes information indicating the remaining number of dubbing times and the synchronization state of the content 1 and the content 2 in the title management table in the storage unit 280. To do. Next, when the content 4 is recorded in the area 1, the back-end control unit 240 registers information related to the title (title 4) indicating the content 4 in the title management table.

  In this section, the case where the content recorded on the disc 1 remains is described as an example, but the content recorded on the disc 1 may be deleted as a matter of course. In this case, the contents recorded on the disk 1 and the information on the contents in the virtual disk map in the map table recorded in the entry 1 of the storage unit 340 are also deleted. In addition, the title information recorded in the title management area of the storage unit 280 is also deleted.

<Content playback operation>
Next, the content reproduction operation in the recorder apparatus 100 will be described below with reference to FIGS.

  The content reproduction process is a process executed in response to a content reproduction instruction from the user via the operation input unit. For example, when the user selects playback of a title displayed on the display device, the back-end control unit 240 executes the content playback process on the assumption that the playback instruction of the content represented by the selected title has been received. Note that the title displayed on the display device is a title recognized by the back-end unit 200. The title recognized in the back-end unit 200 can be rephrased as a title registered in the title management table recorded in the title management area of the storage unit 280.

  Note that the content playback operation in the recorder apparatus 100 can be broadly divided into playback processing when a My Disc is loaded and playback processing when a My Disc is not loaded. Each reproduction process will be described below.

(Playback process when My Disc is loaded)
Reproduction processing when a My Disk is loaded will be described below with reference to FIGS. FIG. 14 is a diagram illustrating a state of the storage unit 340 and the storage unit 280 when the disc 1 on which the contents 1 to 3 are recorded is loaded. FIG. 15 is a diagram schematically showing a medium from which content is read during reproduction when a My Disc is loaded.

  As shown in FIG. 14, the disc 1 on which the contents 1 to 3 are recorded is loaded in the drive unit 300, and the contents 1 and 2 are recorded in the area 1 of the storage unit 340. Therefore, information on titles 1 to 3 is recorded in the title management table in the title management area of the storage unit 280. That is, the back end unit 200 can recognize the contents 1 to 3 represented by the titles 1 to 3. In FIG. 14, the details of the title management table are omitted.

  As a playback process when the My Disc is loaded, the playback process when the content 1 recorded in both the disc 1 and the area 1 is played back will be described first and then recorded on the disc 1. However, a reproduction process in the case of reproducing the content 3 not recorded in the area 1 will be described.

  The back-end control unit 240 outputs a command for reading the content 1 recorded on the disc 1 to the drive unit 300 via the interface unit 290. The drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 1 recorded on the disc 1 is recorded in the area 1. At this time, since the content 1 is the content recorded in the area 1, the drive control unit 320 reads the read command from the disc 1 received from the back-end control unit 240 from the area 1 with reference to the map table. Is converted into a read instruction. That is, the drive control unit 320 converts the address of the disk 1 into the physical address of the area 1 with reference to the map table.

  The drive control unit 320 that has read the content 1 from the area 1 outputs the read content 1 to the back-end unit 200 via the interface unit 310.

  As described above, when the content to be read is recorded on both the My Disc and the storage unit 340, the content is read from the storage unit 340 as shown in FIG.

  Similarly, when playing back the content 3 recorded on the disc 1 but not recorded in the area 1, the back-end control unit 240 sends an instruction for reading the content 3 recorded on the disc 1 to the interface unit 290. To the drive unit 300. The drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 3 recorded on the disc 1 is recorded in the area 1. At this time, since the content 3 is content not recorded in the area 1, the drive control unit 320 sends the content 3 to the disc drive unit 330 in accordance with the read command from the disc 1 received from the back-end control unit 240. Is to be read.

  When the content 3 is read from the disc 1, the drive control unit 320 outputs the read content 3 to the back end unit 200 via the interface unit 310.

  As described above, when the content to be read is not recorded in the storage unit 340, the content is read from My Disk as shown in FIG.

(Playback process when My Disk is not loaded)
Next, the reproduction process in the case where no my disk is loaded will be described below with reference to FIGS. FIG. 16 is a diagram illustrating a state of the storage unit 340 and the storage unit 280 when no optical disk is loaded in the drive unit 300. FIG. 17 is a diagram schematically showing a medium from which content is read out during reproduction when no My Disc is loaded.

  As shown in FIG. 16, content 1 and content 2 are recorded in area 1 of storage unit 340. However, unlike the case of FIG. 14, the disc 1 on which the contents 1 to 3 are recorded is not loaded in the drive unit 300. Note that information on titles 1 to 3 is recorded in the title management table in the title management area of the storage unit 280. That is, the back end unit 200 can recognize the contents 1 to 3 represented by the titles 1 to 3. In FIG. 16, as in FIG. 14, details of the title management table are omitted.

  In the case of the state shown in FIG. 16, among the contents 1 to 3 represented by the titles 1 to 3 recognized in the back end unit 200, the contents 1 and 2 recorded in the area 1 of the storage unit 340. Can be reproduced, but the content 3 recorded only on the disc 1 cannot be reproduced.

  That is, as shown in FIG. 17, when the content to be read is recorded on both the My Disc and the storage unit 340, the content is stored by the same processing as when the My Disc is loaded. Read from the unit 340. However, content recorded only on the disc 1 cannot be read.

  The content 1 reading process shown in FIG. 17 is the same as the content 1 reading process in the case where the My Disc is loaded, and thus the description thereof is omitted here.

<Content editing operation>
Next, the content editing operation in the recorder apparatus 100 will be described below with reference to FIGS. 18 and 19A and 19B.

  The content editing process is a process executed in response to a content editing instruction from the user via the operation input unit. For example, when the user selects to edit the title displayed on the display device, the back-end control unit 240 edits the content selected by the user on the assumption that the back-end control unit 240 has received an instruction to edit the content represented by the selected title. Execute the process. Note that the title displayed on the display device is a title recognized by the back-end unit 200. The title recognized in the back-end unit 200 can be rephrased as the title registered in the title management table recorded in the title management area of the storage unit 280. That is, the title registered in the title management table can be edited regardless of the recording medium.

  Similar to the content reproduction process, the content editing operation in the recorder apparatus 100 can be broadly divided into an editing process when a my disk is loaded and an editing process when a my disk is not loaded. Each editing process will be described below.

  The content editing process is a process of changing at least a part of the data recorded in the My Disc or the storage unit 340. Specifically, the content is deleted from the scene (partial change of the content data). ), Processing including deletion of content and addition of chapter in content. Here, the scene erasure in the content will be described as an example, but other processes can be similarly processed. In the content deletion process, the state where the My Disc is loaded will be described above, and the state where the My Disc is not loaded will be described in detail below.

(Editing process when My Disc is loaded)
The editing process when a My Disk is loaded will be described below with reference to FIGS. FIG. 18 is a diagram schematically showing a medium on which content is edited when a My Disc is loaded.

  As shown in FIG. 14, the disc 1 on which the contents 1 to 3 are recorded is loaded in the drive unit 300, and the contents 1 and 2 are recorded in the area 1 of the storage unit 340. The title management table in the title management area of the storage unit 280 stores information on the titles 1 to 3, and the back end unit 200 recognizes the contents 1 to 3 represented by the titles 1 to 3. Can do. In FIG. 14, the details of the title management table are omitted.

  As a reproduction process in the case where the My Disc is loaded, the process in the case of editing the content 1 recorded in both the disc 1 and the area 1 will be described first, and then recorded on the disc 1. A process in the case of editing the content 3 not recorded in the area 1 will be described.

  The back-end control unit 240 outputs an instruction to change the data of the content 1 recorded on the disc 1 to the drive unit 300 via the interface unit 290. The drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 1 recorded on the disc 1 is recorded in the area 1. At this time, since the content 1 is the content recorded in the area 1, the drive control unit 320 refers to the map table for an instruction to change data in the disc 1 received from the back-end control unit 240. 1 is converted into an instruction to change data. That is, since the drive control unit 320 refers to the map table and converts the address of the disc 1 into the physical address of the area 1, the data of the content 1 recorded in the area 1 is actually changed. It will be.

  As described above, when the content whose data is to be changed is recorded in both the My Disc and the storage unit 340, the data of the content recorded in the storage unit 340 is changed as shown in FIG. It will be.

  However, since the content 1 recorded in the disc 1 and the content 1 recorded in the area 1 remain different (asynchronous state), the drive control unit 320 records in the area 1. The data change made for the content 1 is also reflected on the content 1 recorded on the disc 1. Reflecting the change to the content 1 recorded on the disc 1 may be performed at any time until the disc 1 is taken out from the drive unit 300.

  Similarly, when the data of the content 3 recorded in the disc 1 but not recorded in the area 1 is changed, the back end control unit 240 similarly changes the data of the content 3 recorded in the disc 1. Is output to the drive unit 300 via the interface unit 290. The drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 3 recorded on the disc 1 is recorded in the area 1. At this time, since the content 3 is content not recorded in the area 1, the drive control unit 320 follows the instruction to change the data of the content 3 recorded on the disc 1 received from the back-end control unit 240. Instructs the disk drive unit 330 to change the data of the content 3.

(Editing process when My Disk is not loaded)
Next, content editing processing when no My Disc is loaded will be described below with reference to FIGS. 16 and 19A and 19B. FIGS. 19A and 19B are diagrams schematically showing a medium on which content is edited when the My Disc is not loaded. FIG. 19A is a diagram when the Disc 1 is not loaded. (B) shows the reflection of the changed portion on the disk 1 when the disk 1 is loaded.

  In the case of the state shown in FIG. 16, among the contents 1 to 3 represented by the titles 1 to 3 recognized in the back end unit 200, the contents 1 and 2 recorded in the area 1 of the storage unit 340. The same editing process as when the disc 1 is loaded can be performed.

  That is, as shown in FIG. 19B, when the content 2 of the disc 1 is changed in another recorder device, the drive control unit 320 records the change of the content 2 in the disc 1 in the area 1. It is reflected to the content 2 that is present. At this time, the map table recorded in entry 1 is also updated.

<Content copy operation>
Next, a content copy operation in the recorder apparatus 100 will be described below with reference to FIGS. 20 (a) and 20 (b). Here, the in-memory copy operation in the storage unit 340 in the recorder apparatus 100 will be described as an example. The in-memory copy operation can also be referred to as an in-memory dubbing operation in the recorder apparatus 100. 20A and 20B are diagrams illustrating the in-memory copy process in the recorder device 100, and FIG. 20A is a diagram illustrating the state of the storage unit 340 after the in-memory copy process. ) Is a diagram showing the state of the title management area in the storage unit 280 after the in-memory copy process.

  The content in-memory copy process is a process executed in response to a content copy instruction from the user via the operation input unit. For example, when the user selects a title from the titles displayed on the display device and determines in which area the selected title is to be copied, the back-end control unit 240 displays the content represented by the selected title. When an instruction to copy to the area in the selected storage unit 340 is received, the in-memory copy process of the content is executed. Note that the title displayed on the display device is a title recognized by the back-end unit 200. The title recognized in the back-end unit 200 can be rephrased as the title registered in the title management table recorded in the title management area of the storage unit 280.

  Upon receiving an instruction from the user to copy the content 2 recorded in the area 1 of the storage unit 340 to the area 2 of the storage unit 340, the back-end control unit 240 is recorded in the area 1 with respect to the drive control unit 320. The content 2 is recorded in the area 2. Upon receiving the instruction from the back-end control unit 240, the drive control unit 320 records the content 2 in the area 2 as shown in FIG. At this time, the drive control unit 320 updates the map table recorded in the entry 2. The recording of the content 2 in the area 2 and the update of the map table associated therewith are the same as the processing described in the recording operation, and thus the description thereof is omitted.

  When the recording of the content 2 in the area 2 is completed, the back-end control unit 240 subtracts 1 from the remaining dubbing count of the content 2 in the title management information recorded in the title management area of the disc 1 in the storage unit 280. Further, 1 is added to the remaining dubbing count of the content 2 in the title management information recorded in the title management area of the disc 2 in the storage unit 280. Accordingly, as shown in FIG. 20B, the remaining dubbing count of the content 2 in the title management area of the disc 1 is “8”, and the remaining dubbing count of the content 2 in the title management area of the disc 2 is “1”. It becomes.

  As shown in FIG. 20A, since the disc 2 is not loaded in the drive unit 300, the synchronization state of the content 2 recorded in the area 2 is information indicating unsynchronization.

<Unregister My Disk>
Next, the registration cancellation process of My Disk will be described. The drive control unit 320 that has received an instruction to cancel the registration of the disk 1 from the user erases the management information that is recorded in the storage unit 340 and manages the area associated with the disk 1 that is to be deregistered. That is, the media ID information, the media key information, and the map information in the entry are deleted, and the allocation flag is changed to “0” indicating that the allocation is not performed. If data is recorded in the area, the recorded data is also erased. As a result, the entry in the storage unit 340 is in a state where a new My Disk can be registered.

  Further, the back-end control unit 240 that has received the instruction to cancel the registration of the disc 1 from the user deletes the title management information recorded in the title management area of the disc 1 in the storage unit 280. As a result, the back end unit 200 cannot recognize the title indicating the content recorded on the disc 1.

(Using the file system of My Disk)
In the recorder device 100, it is preferable to use a file system acquired from an optical disk registered as My Disk for writing data to and reading data from the optical disk registered as My Disk.

  Here, data management using the file system of the optical disc will be described below with reference to (a) to (c) of FIG. 21A to 21C are diagrams showing data management using a file system. FIG. 21A shows an example of a file system recorded in the storage unit 280. FIG. FIG. 4C shows a correspondence relationship between the recording states of the disc 1 corresponding to the recording states of contents in FIG.

  Normally, a file system defined by a standard for each type of optical disk is recorded in the optical disk, and each file recorded on the optical disk is associated with the recorded address of each file by the file system. ing. The file system is often recorded at the beginning of the recording area of the optical disc.

  The back-end unit 200 refers to the file system acquired from the optical disk in order to specify the address of the optical disk that is the target of data reading or data writing. The file system is acquired together with the media ID and the like when the optical disc is loaded, and is stored in the volatile memory of the back end unit 200. Further, in order to cope with an unexpected power interruption, the acquired file system is also stored in the storage unit 280 ((a) of FIG. 21). The back-end unit 200 acquires a file system from the optical disk every time an optical disk is loaded, and compares the acquired file system with the file system recorded in its own apparatus to maintain the latest state of the file. I am doing so.

  That is, the back-end unit 200 compares the file system read from the optical disk registered as My Disk with the file system already recorded in the storage unit 280 (the file system most recently read from the optical disk). As a result, the back-end unit 200 acquires content information recorded on the optical disc and not recorded in the storage unit 340 (for example, the address of the optical disc on which the content is recorded, title information indicating the content, etc.).

  In FIG. 21A, only the file system related to the disk 1 is shown, but the file system is recorded in the file system management area of the storage unit 280 by the number of disks registered as my disks. ing.

  Thus, by recording the file system of the optical disc registered as My Disc in the storage unit 280, the back end unit 200 is recorded in the storage unit 280 even when the optical disc is not loaded. The file on the virtual disk image can be accessed by referring to the existing file system. That is, even when the My Disk is not loaded, the data can be handled as if the My Disk is loaded. For example, in the map information of the storage unit 340, when the address of the storage unit 340 corresponding to the virtual address to be accessed is recorded, the data recorded at the address using the address of the storage unit 340 Can be read out.

  Further, as shown in (b) and (c) of FIG. 21, even when the content 1 is divided into a plurality of fragmented files and recorded on the optical disc, the back-end control unit 240 By referring to the arrangement information of the content 1 in the file system recorded in the storage unit 280, the content 1 can be accurately accessed.

  As described above, the map information recorded in the storage unit 340 is shown as arrangement information for each content in the present embodiment, but more precisely, as shown in FIG. ) Shows the arrangement information for each.

  In addition, when the registration of My Disk is canceled, the file system recorded in the file system management area is also deleted together with the title management information.

<Example of display on display device>
Finally, a display example of content and information recorded in the title list on the display device connected to the recorder device 100 will be described below with reference to FIG. FIG. 22 is a diagram schematically showing display of information recorded in the content and title list on the display device 500.

  When the user instructs the recorder apparatus 100 to display a title list via the operation input unit, the display apparatus 500 displays the title list and content as shown in FIG.

  That is, as shown in FIG. 22, the display screen in the display device 500 includes two screens: a content display unit 510 that continues to display content that has been viewed so far, and a title list display unit 520 that displays a title list. Will be divided.

  The title list display unit 520 displays tabs corresponding to registered My Disks as shown in FIG. When the user selects the tab of the My Disc for which the title list is desired to be confirmed, the title list display unit 520 displays the title list of the My Disc selected by the user. That is, the information of the title management table recorded in the title management area of each My Disc in the storage unit 280 is displayed.

  FIG. 22 shows a title list when the tab of the disc 1 is selected. At this time, it is preferable to display information (icon) indicating the selected disk on the display unit 530. When the user selects each title displayed on the title list display unit 520, it is preferable to display a thumbnail of the content indicated by the temporarily selected title on the display unit 530.

<Erasing content when no My Disc is loaded>
In the above, the content deletion process in a state where the My Disc is loaded has been described, but here, the content deletion process in a state where the My Disc is not loaded is illustrated in (a) to (c) of FIG. -It demonstrates below, referring (a) and (b) of FIG.

  First, the case of deleting content from both the My Disk and the storage unit 340 will be described below with reference to FIGS. 23A to 23C and FIGS. 24A and 24B.

  (A) to (c) of FIG. 23 are views showing the states of the storage units when the contents 1 to 3 are deleted in a state where the disc 1 is not loaded. The correspondence relationship of the recording state of the disc 1 corresponding to the recording state is shown, (b) is a diagram showing a map table when the contents 1 to 3 are deleted, (c) is a view when the contents 1 to 3 are deleted A title management table is shown.

  When the user instructs deletion of the contents 1 to 3 shown in FIG. 23A, the back-end control unit 240 outputs an erase command for the contents 1 to 3 to the drive unit 300. At this time, the back-end control unit 240 outputs an erasure command to the drive unit 300 with an address designating an area on the disk 1. In this section, the contents 1 to 3 are described to be deleted at the same time for convenience, but the contents 1 to 3 may actually be deleted in order.

  The drive control unit 320 in the drive unit 300 that has received the erasure command has not loaded the disk 1, so the address on the disk 1 designated by the back-end control unit 240 is stored on the storage unit 340 by referring to the map table. The contents are read as addresses, and the contents 1 to 3 recorded in the area 1 of the storage unit 340 are deleted.

  The drive control unit 320 also deletes information on the memory map in the map table of the disk 1. At the same time, as shown in FIG. 23B, the drive control unit 320 sets the erase flag in the deleted contents 1 to 3 to “1”. For the content 4 that is not deleted, the deletion flag remains “0”.

  Note that the erasure flag is not used in the above-described operation process, and thus has not been described for the sake of convenience. However, the erasure flag may be associated with each content recorded in the storage unit 340 during the above-described operation process. .

  The back-end control unit 240 also deletes the titles 1 to 3 in the title management area in the storage unit 280 in response to a deletion instruction for the contents 1 to 3 from the user. As a result, when the disc 1 is not loaded, the contents 1 to 3 cannot be accessed, and the titles 1 to 3 indicating the contents 1 to 3 are not displayed. For this reason, it appears to the user as if the contents 1 to 3 were deleted at this point. Also in this section, the title indicating the content 1 is described as the title 1. Similarly, titles indicating content 2 to content n are written as title 2 to title n.

  When the My Disc is loaded in the drive unit 300, the drive control unit 320 determines whether or not the erase flag associated with each content described in the map table is “1”. Then, if there is content whose erase flag is “1”, it is determined whether or not the content is recorded on the My Disc. That is, here, the drive control unit 320 determines whether or not the contents 1 to 3 whose erase flag is “1” are recorded on the disc 1.

  When the contents 1 to 3 whose erase flag is “1” are recorded on the disk 1, the drive control unit 320 deletes the contents 1 to 3 recorded on the disk 1. To instruct. Then, the disk drive unit 330 deletes the contents 1 to 3 instructed to be deleted.

  The drive control unit 320 also deletes the virtual disk map information in the map table of the disk 1 stored in the storage unit 340. Of course, the deletion flag is also deleted together with the virtual disk map information.

  As a result, the contents 1 to 3 are deleted from the disk 1 and the virtual disk image as shown in FIG. 24A, and the virtual disk map of the memory map is deleted as shown in FIG. Information is deleted. 24A and 24B are diagrams showing the state of each storage unit when the disc 1 is loaded, and FIG. 24A shows the recording state of the disc 1 corresponding to the recording state of the content in the area 1. The correspondence relationship is shown, and (b) is a diagram showing a map table when the disc 1 is loaded.

  When the contents 1 to 3 whose erase flag is “1” are not recorded on the disc 1, the drive control unit 320 has deleted the contents 1 to 3 from the disc 1 in another recorder device. Judge. Accordingly, the drive control unit 320 deletes only the virtual disk map information and the erase flag in the map table of the disk 1 stored in the storage unit 340.

(Erasing setting reservation other than flag management)
In the above-described operation, it is determined whether or not the content is to be erased when the disc 1 is loaded based on the erase flag associated with each content. That is, when the recorder device 100 deletes content in a state where no My Disc is loaded, the recorder device 100 sets a deletion reservation for deleting the content from the My Disc when the My Disc is loaded next time.

  However, the content deletion reservation is of course not limited to management by the deletion flag. For example, the storage unit 340 stores a script file (command file) that describes a command for erasing data in the area on the My Disk, and the command described in the script file when the My Disk is loaded is stored. You may make it perform.

  A case where the processing is in the same state as that shown in FIGS. 23A to 23C will be described as an example. When the user instructs deletion of the contents 1 to 3, the back-end control unit 240 outputs a deletion instruction for the contents 1 to 3 to the drive unit 300. At this time, the back-end control unit 240 outputs an erasure command to the drive unit 300 with an address designating an area on the disk 1.

  The drive control unit 320 in the drive unit 300 that has received the erasure command has not loaded the disk 1, so the address on the disk 1 designated by the back-end control unit 240 is stored on the storage unit 340 by referring to the map table. The contents are read as addresses, and the contents 1 to 3 recorded in the area 1 of the storage unit 340 are deleted. The drive control unit 320 also deletes information on the memory map in the map table of the disk 1.

  Here, the drive control unit 320 is designated by the back-end control unit 240 for the script file stored in the storage unit 340 instead of setting the deletion flag as shown in FIG. Write a command to erase the data in the specified area. That is, the drive control unit 320 creates an erasure list of the contents 1 to 3 recorded on the disc 1.

  When the disk 1 is loaded in the drive unit 300, the drive control unit 320 reads a script file from the storage unit 340 and executes a command described in the read script file. That is, the drive control unit 320 executes a command for deleting the contents 1 to 3 from the disc 1.

  In response to the execution of the command, the disk drive unit 330 deletes the contents 1 to 3 from the disk 1. As a result, the contents 1 to 3 as shown in FIGS. 24A and 24B are deleted from both the disc 1 and the area 1 as described above.

  Note that the command described in the script file is not limited to a command for deleting content from My Disk, and may be a command for deleting content from both storage unit 340 and My Disk. Good. In this case, when the command is described in the script file, the content designated to be deleted is temporarily made inaccessible from the user. When receiving a deletion cancel command from the user, it is possible to delete the command described from the script file and not delete the content.

(Advantages of the recorder device 100)
When the drive unit 300 provided in the recorder apparatus 100 obtains an erasure command for erasing content recorded in a predetermined area on My Disk, it is recorded in an area on the storage unit 340 associated with that area. Deletes the stored content and sets an erasure reservation for the content. Then, when the My Disc is loaded, the content set as the erase reservation is erased from the My Disc.

  As a result, the drive unit 300 provided in the recorder apparatus 100 can erase the content as if the My Disc is loaded even when the My Disc is not loaded.

(Delete content only from storage unit 340)
Up to this point, the case where content is deleted from both the storage unit 340 and My Disk has been described, but it is also possible to delete content only from the storage unit 340 and leave it on My Disk. As a case where contents are deleted only from the storage unit 340, for example, a case where the storage capacity of the storage unit 340 is smaller than the recording capacity of the My Disk and a free area of the storage unit 340 is reduced can be considered.

  In this section, the contents are deleted from the storage unit 340, but the contents recorded on the My Disc are not deleted, (a) to (c) in FIG. 25 and (a) and (b) in FIG. This will be described below with reference to FIG.

  When the user instructs deletion of the contents 1 to 3 shown in FIG. 25A, the back-end control unit 240 outputs an erase command (first erase command) for the contents 1 to 3 to the drive unit 300. To do. At this time, the back-end control unit 240 outputs an erasure command to the drive unit 300 with an address designating an area on the disk 1.

  The drive control unit 320 in the drive unit 300 that has received the erasure command has not loaded the disk 1, so the address on the disk 1 designated by the back-end control unit 240 is stored on the storage unit 340 by referring to the map table. The contents are read as addresses, and the contents 1 to 3 recorded in the area 1 of the storage unit 340 are deleted. The drive control unit 320 also deletes information on the memory map in the map table of the disk 1.

  Here, the drive control unit 320 inquires of the back end unit 200 whether or not to delete the contents 1 to 3 recorded on the disc 1.

In this section, in response to this inquiry, the back end control unit 240 keeps the content 1 and the content 3 recorded on the disc 1 and asks the drive unit 300 to delete only the content 2 from the disc 1 as well. Instructed. That is, the back-end control unit 240 outputs a command (third erasing command) for preventing the content 1 and the content 3 from being deleted from the disc 1 to the drive unit 300, and for the content 2. Outputs an instruction to delete from the disk 1 (second erasure instruction). .
As shown in FIG. 25, the drive control unit 320 in the drive unit 300 that has received an instruction from the back-end control unit 240 sets the storage flag to “1” for the contents 1 and 3 and sets the deletion flag to “0”. " On the other hand, for the content 2, the deletion flag is set to “1”, and the storage flag is set to “0”.

  Further, the back-end control unit 240 determines the remaining dubbing information about the title 1 and the content 3 indicating the content 1 and the content 3 in the title management area of the storage unit 280 as illustrated in the title 3 in FIG. Delete only information about count and sync status. As for the information on the title 2 representing the content 2, all the information is deleted at this point as shown in FIG.

  When the My Disc is loaded in the drive unit 300, the drive control unit 320 determines whether or not the storage flag associated with each content in the map table is “1”, and the deletion flag is “1”. Is determined.

  When there is content with the save flag “1”, the drive control unit 320 prevents the content from being deleted from the My Disc even if the content with the save flag “1” is recorded on the My Disc. . On the other hand, if there is content with the erase flag “1”, the drive control unit 320 deletes the content from the My Disc if the content with the erase flag “1” is recorded on the My Disc.

  That is, in this section, the drive control unit 320 does not delete the contents 1 and 3 whose save flag is “1” from the disc 1. On the other hand, the content 2 whose erase flag is “1” is the content recorded on the disc 1 and is therefore deleted from the disc 1.

  Further, the drive control unit 320 also deletes the virtual disk map information of the content 2 in the map table stored in the storage unit 340. Of course, the deletion flag is also deleted together with the virtual disk map information.

  Accordingly, as shown in FIG. 26A, only the content 2 is deleted from the disc 1 and the virtual disc image, and the content 1 and the content 3 are not deleted. Further, as shown in FIG. 26B, the storage flag and the deletion flag for the contents 1 and 3 are deleted, but the information of the virtual disk map is not deleted.

  Therefore, the contents 1 and 3 are contents that can be reproduced only when the disc 1 is loaded in the recorder device 100. On the other hand, since the content 2 is also deleted from the virtual disk image and the disk 1, it cannot be reproduced.

  26A and 26B are diagrams showing the state of each storage unit when the disc 1 is loaded, and FIG. 26A shows the recording state of the disc 1 corresponding to the content recording state in the area 1. The correspondence relationship is shown, and (b) is a diagram showing a map table when the disc 1 is loaded.

  Note that when the content 1 and the content 3 with the storage flag “1” are not recorded on the disc 1, the drive control unit 320 deletes the content 1 and 3 from the disc 1 in another recorder device. Judge that. Therefore, the drive control unit 320 deletes the virtual disk map information and the erasure flag in the map table of the disk 1 stored in the storage unit 340.

  In addition, the drive control unit 320 notifies the back end unit 200 that the contents 1 and 3 have been deleted from the disc 1. Receiving the notification, the back-end control unit 240 deletes information related to the title 1 indicating the content 1 and the title 3 indicating the content 3 from the title management area of the disc 1.

  As described above, in the recorder device 100, when the disc 1 is loaded, the content whose erase flag is “1” is deleted from the disc 1, and the content whose save flag is “1” is disc 1 Can be removed from.

  Thereby, for example, when the recording capacity of the area 1 of the storage unit 340 is smaller than the recording capacity of the My Disc, the recording capacity of the Area 1 is ensured without erasing the content recorded on the My Disc. Can do.

[Other variations]
The drive device according to the present invention has acquired a write command for writing data to a specific write target area on a designated medium designated by a user among a non-detachable recording medium and a plurality of removable recording media. And writing means for writing the data to the non-removable recording medium and recording the area on the non-removable recording medium to which the data has been written in association with the write target area on the designated medium. And a synchronizing means for writing data written on the non-removable recording medium to the write target area when the designated medium is loaded, the writing means further comprising the designated medium When an erasure command for erasing data recorded in the specific erasure target area is acquired, the data is recorded in the non-detachable recording medium associated with the erasure target area. And erase reservation of the data recorded in the area to be erased, and the synchronization means is further set with the erase reservation when the designated medium is loaded. Data is erased from the area to be erased on the designated medium.

  In the drive device according to the present invention, when a write command for writing data to a specific write target area on a designated medium designated by the user is acquired, the data is written to the non-detachable recording medium and the data is written. The area on the non-detachable recording medium and the writing target area on the designated medium are recorded in association with each other, and the data written on the non-removable recording medium when the designated medium is loaded is stored in the writing target area. Write.

  In the drive device according to the present invention, when an erasure command for erasing data recorded in a specific erasure target area on the designated medium is acquired, an area on the non-removable recording medium associated with the erasure target area Erases the data recorded in the memory, and sets the erasure reservation for the data recorded in the erasure target area, and when the specified medium is loaded, erases the data for which the erasure reservation is set on the designated medium. Erase from the target area.

  As described above, the drive device according to the present invention erases the data recorded in the area on the non-detachable recording medium associated with the erase target area when the erase command is acquired, and records it in the erase target area. By setting an erasure reservation for the stored data, the data recorded in the erasure target area on the designated medium can be erased when the designated medium is loaded.

  As a result, in the drive device according to the present invention, even when the designated medium is not loaded in the drive device, the data can be erased as if the designated medium is loaded in the drive device. .

  That is, in the drive device according to the present invention, data recorded on a non-detachable recording medium can be freely erased regardless of whether or not a removable recording medium is loaded, thereby improving usability. Can do.

  In the drive device according to the present invention, the writing means erases data recorded in an area on the non-detachable recording medium associated with the erasure target area when the erasing command is acquired. Erasing information designating erasing of data recorded in the erasing target area is recorded in association with the erasing target area, and the synchronization means is associated with the erasing information when the designated medium is loaded. It is preferable to erase the data recorded in the erase target area.

  According to the above configuration, the data to be erased from the designated medium when the designated medium is loaded can be determined from the erasure information.

  As a result, the drive device according to the present invention has an effect that it is possible to determine whether or not to erase the data on the designated medium without performing complicated processing.

  In the drive device according to the present invention, the non-detachable recording medium further stores a command file describing a command for erasing data in the area on the removable recording medium designated by the erasing instruction. When the erasing command is acquired, the writing means erases the data recorded in the area on the non-removable recording medium associated with the erasure target area, and the data in the erasure target area is erased. A command to be erased is described in the command file, and the synchronization means erases data recorded in the area to be erased based on the command described in the command file when the designated medium is loaded. It is preferable to do.

  According to the above configuration, the data to be deleted from the designated medium when the designated medium is loaded can be erased based on the command described in the command file.

  Thus, in the drive device according to the present invention, the data on the designated medium is erased based on the command described in the command file, so even when erasing a plurality of data on the designated medium at once. Thus, it is possible to avoid an increase in the time required for erasing data.

  In the drive device according to the present invention, when the writing unit obtains a first erasure command for erasing data recorded in the erasure target area on the designated medium, it is recorded in the erasure target area. The information processing device further comprises notification means for notifying the host device connected to the drive device whether or not to erase the data, and the writing means notifies the host device of the inquiry. Later, when a second erase command indicating that the data recorded in the erase target area is to be erased is acquired, it is recorded in the area on the non-removable recording medium associated with the erase target area. And erase information that specifies erasure of data recorded in the erasure target area is recorded in association with the erasure target area. When the third erasure command indicating that the data recorded in the memory is not erased is acquired, the data recorded in the area on the non-removable recording medium associated with the erasure target area is erased. Non-erasure information indicating that data recorded in the erasure target area is not erased is recorded in association with the erasure target area, and the synchronization unit associates the erasure information when the designated medium is loaded. It is preferable that the data recorded in the erase target area is erased and the data recorded in the erase target area associated with the non-erasable information is not erased.

  According to the above configuration, when the second erase command is obtained after obtaining the first erase command, the data recorded in the area on the non-detachable recording medium is erased and the erase target area is entered. When erasure information designating erasure of recorded data is recorded in association with the erasure target area and the third erasure instruction is acquired after acquiring the first erasure instruction, the erasure information associated with the erasure target area is recorded The data recorded in the non-removable area on the recording medium is erased, and non-erasable information indicating that the data recorded in the area to be erased is not erased is recorded in association with the area to be erased.

  As a result, when the designated medium is loaded, the data associated with the erasure information is erased from the designated medium, and the data associated with the non-erasable information is not deleted from the designated medium. .

  That is, in the drive device according to the present invention, it is possible to set whether the data is erased only from a non-detachable recording medium or the data is erased from both the non-detachable recording medium and the designated medium.

  When the recording capacity of the non-detachable recording medium is smaller than the recording capacity of the designated medium, the recording capacity of the non-detachable recording medium can be ensured without erasing the data recorded on the designated medium. Play.

  In the drive device according to the present invention, when a read command for reading data from the read target area on the designated medium is acquired, the area on the non-removable recording medium associated with the read target area on the designated medium It is preferable to further comprise a reading means for reading data from.

  According to the above configuration, even when the designated medium is not loaded, it is possible to read the data recorded on the non-detachable recording medium as if the designated medium is loaded. .

  A content recording / reproducing device including the drive device, the data recording / reproducing device including the drive device, supplying the write command and the erasure command to the drive device, or the designated medium. A data recording / reproducing apparatus that supplies a read command for reading data from the upper read target area to the drive device is also included in the scope of the present invention.

  Further, a program for operating the drive device according to the present invention, which causes a computer to function as each of the above-described means, and a computer-readable recording medium on which these programs are recorded are also included in the present invention. Included in the category.

(Program and recording medium)
The back end control unit 240 and the drive control unit 320 included in the recorder device 100 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.

  That is, the back-end control unit 240 and the drive control unit 320 have a CPU such as an MPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, and a format that can execute the program. A RAM (Random Access Memory) to be developed and a storage device (recording medium) such as a memory for storing the program and various data are provided.

  The object of the present invention is not limited to the case where the program memory of the back-end control unit 240 and the drive control unit 320 is fixedly supported, but the program code (execution format program, intermediate code program, or This can also be achieved by supplying a recording medium in which the source program) is recorded to the recorder apparatus 100, and the recorder apparatus 100 reads out and executes the program code recorded in the recording medium.

  The recording medium is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.

  Further, the object of the present invention can be achieved even if the back-end control unit 240 and the drive control unit 320 (or the recorder device 100) are configured to be connectable to a communication network. In this case, the program code is supplied to the back-end control unit 240 and the drive control unit 320 via the communication network. The communication network is not limited to a specific type or form as long as it can supply program codes to the back-end control unit 240 and the drive control unit 320. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, etc. may be used.

  The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), 802.11 wireless, HDR, mobile phone It can also be used by radio such as a telephone network, a satellite line, and a terrestrial digital network. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The drive device according to the present invention can be suitably used as a BD drive, a DVD drive, or a CD drive. The content recording / playback apparatus according to the present invention can be suitably used as a BD recorder or a DVD recorder. Further, the content recording / reproducing apparatus according to the present invention can be suitably used even when it is mounted on a television receiver.

100 recorder device (data recording / reproducing device)
200 Back-end unit (host device)
210 Tuner unit 220 Encoder unit 230 Stream processing unit 240 Backend control unit 250 Buffer unit 260 Decoder unit 270 Image processing unit 280 Storage unit 290 Interface unit 300 Drive unit (drive device)
310 interface unit 320 drive control unit (writing means, synchronizing means, notifying means, reading means)
330 Disk drive unit 340 Storage unit (non-detachable recording medium)

Claims (8)

A non-removable recording medium;
When a write command for writing data to a specific write target area on a designated medium designated by a user among a plurality of removable recording media is acquired, the data is written to the non-detachable recording medium, A writing unit that records the area on the non-removable recording medium on which the data is written and the writing target area on the designated medium in association with each other;
Synchronization means for writing data written on the non-detachable recording medium to the write target area when the designated medium is loaded;
Further, when the writing means obtains an erasure command for erasing data recorded in a specific erasure target area on the designated medium, the writer deletes data on the non-removable recording medium associated with the erasure target area. Erase the data recorded in the area, set the erase reservation for the data recorded in the area to be erased,
The drive device according to claim 1, wherein when the designated medium is loaded, the synchronization means erases the data set for the erase reservation from the area to be erased on the designated medium. When the erasing command is acquired, the writing means erases data recorded in an area on the non-detachable recording medium associated with the erasure target area and is recorded in the erasure target area. Record erasure information specifying data erasure in association with the area to be erased,
2. The drive device according to claim 1, wherein the synchronization unit erases data recorded in an erase target area associated with the erase information when the designated medium is loaded. The non-removable recording medium stores a command file describing a command for erasing data in an area on the removable recording medium designated by the erasing instruction,
When the erasing command is acquired, the writing means erases the data recorded in the area on the non-removable recording medium associated with the erasure target area and erases the data in the erasure target area. In the command file above,
2. The synchronization unit according to claim 1, wherein when the designated medium is loaded, the data recorded in the erasure target area is erased based on a command described in the command file. Drive device. When the writing means obtains a first erasure command for erasing data recorded in the erasure target area on the designated medium, an inquiry as to whether or not to erase the data recorded in the erasure target area is made. A notification means for notifying the host device connected to the drive device;
When the writing means acquires the second erase command indicating that the data recorded in the erase target area is erased after notifying the host device of the inquiry, the write target area The data recorded in the area on the non-detachable recording medium associated with the erasure is erased, and the erasure information specifying the erasure of the data recorded in the erasure target area is recorded in association with the erasure target area. When the third erasure command indicating that the data recorded in the erasure target area is not erased is acquired, it is recorded in the area on the non-removable recording medium associated with the erasure target area. Erasing data and recording non-erasing information indicating that data recorded in the erasure target area is not erased in association with the erasure target area,
When the designated medium is loaded, the synchronization unit erases data recorded in the erasure target area associated with the erasure information, and is recorded in the erasure target area associated with the non-erasure information. 2. The drive device according to claim 1, wherein the stored data is not erased.   Read means for reading data from an area on the non-detachable recording medium associated with the read target area on the designated medium when a read command for reading data from the read target area on the designated medium is acquired. The drive device according to claim 1, wherein:   6. A data recording / reproducing apparatus comprising the drive device according to claim 1, wherein the write command and the erase command are supplied to the drive device, or reading from the designated medium is performed. A data recording / reproducing apparatus for supplying a read command for reading data from a target area to the drive apparatus.   A program for operating a computer included in the drive device according to any one of claims 1 to 5, wherein the program causes the computer to function as each unit.   A computer-readable recording medium in which the program according to claim 7 is recorded.

Images