JP2007310917A - Dvd player - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a "player" which can easily sequentially reproduce the desired contents. <P>SOLUTION: If the user carries out selection of the button of a title 2 (b) and decision on it (c), when the title menu is reproduced and displayed as defined by the data recorded on the DVD-Video disk 1 (a), the command defined to the button of this title 2 registers the title 2, instructing to start reproduction as the reproduction target unit in the user program table 5. Then similarly, following the selection and decision of the title button, the command registered to the title button registers the title instructing to start reproduction as the reproduction unit in the user program table 5 (e-f-g, hi-j). Then, if the user program is instructed to carry out, the reproduction units registered in the user program table 5 are reproduced sequentially. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for controlling reproduction of a recording medium for recording a plurality of contents such as a DVD-Video disc and a DVD-Audio disc.

  As a technology for controlling the reproduction of a recording medium for recording a plurality of contents, the recording medium is recorded using a visual menu defined in the recording medium used for a DVD-Video disc or a DVD-Audio disc. A technique for controlling reproduction is known. In this technology, when a recording medium is played, a visual menu is displayed according to the definition recorded on the recording medium, and content to be played back from the user on the menu display (titles and chapters on DVD-Video discs, DVD- A selection operation of a track, a group, or the like on an Audio disc is received, and the content that has received the selection operation is played back.

In addition, as a technique for controlling the playback of a DVD-Video disc, a title number or chapter number designated by the user from among chapters of titles recorded on a DVD-Video disc without using the menu as described above. There is also known a technique for reproducing the titles and chapters specified in the above in the order according to the specified order (for example, Patent Document 1).
Japanese Unexamined Patent Publication No. 2000-113652

  According to the above-described technology for controlling reproduction of a recording medium using a visual menu defined on the recording medium, the user can select a content using the menu in order to reproduce a plurality of desired contents sequentially. The operation must be performed every time content playback ends, which is cumbersome.

  On the other hand, according to the technique for reproducing the title or chapter specified by the title number or chapter number selected by the user in the order according to the specified order, the title or chapter corresponding to the title number or chapter number is reproduced. If the user does not know the contents in advance, the user cannot reproduce the desired contents sequentially.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a playback device that allows a user to more easily play back a plurality of desired contents among the contents recorded on a recording medium.

  In order to achieve the object, the present invention reads and reproduces the visual menu from a recording medium on which a plurality of contents and a visual menu in which a plurality of display objects respectively associated with the contents are arranged are recorded. Storage means for storing a user program in a playback device that reads and plays back the content corresponding to the display object selected on the visual menu from the recording medium, and the visual menu played back and displayed by the user User program creation means for registering the identification of the content corresponding to the display object designated by the user in the user program according to the designation of the display object above, and the identification is registered in the user program Content is recorded on the recording medium Is obtained by a user program execution means for sequentially reading out and reproducing from.

  Here, in such a playback apparatus, the recording medium may be a DVD-Video disc. In this case, the content is a title or a chapter, and the visual menu is a button as a display object. It may be a title menu or a PTT menu with In such a configuration, the user program creation means registers the title or chapter instructed to start playback by the button command defined for the button designated by the user in the user program.

  Alternatively, in such a playback apparatus, the recording medium may be a DVD-Audio disc. In this case, the content is a track or a group, the visual menu is a button as the display object. A menu for accessing a provided track or group may be used. When configured in this manner, the user program creation means registers in the user program the track or group instructed to start playback by the button command defined for the button specified by the user. .

  According to such a playback apparatus, a user can create a user program in which desired content is registered using a visual menu defined in the recording medium for accepting selection of content to start playback. it can. Here, the visual menu for accepting the selection of the content to start playback from the user can usually grasp the contents of each content that accepts the selection of playback start from the visual menu to some extent from the display of the visual menu. To be created. Therefore, even if the user does not know the contents of each content in advance, a plurality of desired contents can be registered in the user program by an easy operation of designating a display object of the visual menu and sequentially played back. It becomes like this.

  As described above, according to the present invention, the user can easily reproduce a plurality of desired contents among the contents recorded on the recording medium.

Hereinafter, embodiments of the present invention will be described taking application to a DVD video playback apparatus as an example.
FIG. 1 shows the configuration of a DVD video playback apparatus according to this embodiment.
As shown in the figure, the DVD-Video playback device has a DVD driver 2, a navigation manager 3, a presentation engine 4, a user program table 5, a display device 6, an audio output device 7 such as a speaker, etc. that access recorded data on a DVD-Video disc 1. And an input device 8 such as a remote controller.

Here, the recording data recorded on the DVD-Video disc 1 includes presentation data representing the substance of the presentation such as audio, moving images, and still images constituting the title and menu, and navigation data for controlling the execution of the presentation. Including.
The presentation engine 4 reads the presentation data from the DVD-Video disc 1 via the DVD driver 2, decodes the moving image or still image represented by the presentation data, displays the decoded data on the display device 6, and the audio represented by the presentation data. Is decoded and output to the audio output device 7 to reproduce the presentation.

  On the other hand, the navigation manager 3 determines the presentation playback sequence in the presentation engine 4 according to the navigation data read via the DVD driver 2 and the user operation received by the input device 8, and uses the determined playback sequence. The playback output operation of the presentation engine 4 is controlled, and various playback states of the DVD-Video disc 1 are managed as system parameters SPRM ().

  However, the hardware of the DVD video playback apparatus as described above includes a CPU, a main memory, a DVD drive, a display device 6, an input device 8, an audio output device 7, an external storage device, etc. Hardware can be used. In this case, the above navigation manager 3, presentation engine 4, and user program table 5 are embodied on the computer by the CPU loading and executing a computer program stored in, for example, an external storage device. It may be realized as a process or a storage resource.

Here, FIG. 2 shows a configuration example of a menu output based on the recording data of the DVD-Video disc 1 in such a DVD video playback apparatus.
Here, the menu shown in FIG. 2a is a title menu used for receiving selection of a title to be reproduced from the user. This title menu is provided for each title and is used for receiving selection of the title. A title button which is a button is provided. Each title button defines JUMP_TT or JUMP_VTS_TT, which is a command for instructing the start of playback of the title corresponding to the title button.

  Note that one or more video title sets VTS composed of one or more titles TT can be recorded on the DVD-Video disc 1. Each title TT is specified by a video title set number VTSN that is an identifier of the video title set and a video title set title number VTS_TTN that is an identifier of the title TT in the video title set VTS. Each title TT is also specified by a title number TTN that is an identifier of the title TT in the DVD-Video disc 1. Information that associates the title number TTN with the combination of the video title set number VTSN and the video title set title number VTS_TTN is also recorded on the DVD-Video disc 1.

  The title TT instructed to start playback by JUMP_TT is specified by the title number TTN specified by JUMP_TT. Also, the title TT for which playback is instructed by JUMP_VTS_TT is specified by a combination of the video title set number VTSN of the currently played video title set VTS and the video title set title number VTS_TTN specified by JUMP_VTS_TT.

  Here, in the title menu as described above, the content of the title to be played back by each title button is usually determined by the user based on the image used as the title button or the image arranged on the title menu in association with the title button. Created so that it can be recognized to some extent. That is, for example, if each title represents one piece of audio data and its background video, the image used as the title button or the image arranged on the title menu in association with the title button is If the title represents a song and each title represents a movie, the image used as the title button or the image placed on the title menu in association with the title button is the title of the movie or the movie It is assumed to represent a scene that represents

  Next, the menu shown in FIG. 2b is a PTT menu used for accepting selection of a chapter to be reproduced from the user. This PTT menu is provided for accepting selection of the chapter provided for each chapter. A chapter button which is a button is provided. Each chapter button is defined with JUMP_VTS_PTT which is a command for instructing to start playback from the start position of the chapter corresponding to the chapter button.

  Here, a plurality of chapters can be provided in each title TT, and the head position of each chapter is defined as PTT. Each PTT is specified by a video title set number VTSN, a video title set title number VTS_TTN, and a PTT number PTTN that is an identifier of the PTT in the title TT.

  The entry point of the chapter instructed to start playback by JUMP_VTS_PTT is specified by the video title set number VTSN of the currently playing video title set VTS, the video title set title number VTS_TTN specified by JUMP_VTS_PTT, and the PTT number PTTN .

  Now, title menus and PTT menus like these can be composed of multiple pages. FIG. 2b shows the first page when the PTT menu is composed of two pages. This page is a next page in which a command LINK-NextPG for instructing playback of the second page of the PTT menu of FIG. 2c is defined. A button is provided. Also, on the second page of the PTT menu of FIG. 2c, in addition to the chapter button in which the command JUMP_VTS_PTT provided for each chapter is defined, a command LINK-PrevPG for instructing playback of the first page of the PTT menu of FIG. The previous page button is defined.

  Here, in the PTT menu as described above, the content of the chapter to be played back by the chapter button is usually determined by the user based on the image used as the chapter button or the image arranged on the PTT menu in association with the chapter button. Created so that it can be recognized to some extent. That is, for example, if each chapter represents the audio data of one piece of music and its background video, the image used as the chapter button or the image placed on the PTT menu in association with the chapter button is If the title represents a song name and each chapter represents one chapter (act) of a movie, the image used as the chapter button or the image placed on the PTT menu in association with the chapter button The title of a chapter and the scene that represents the beginning of the chapter or the chapter are used.

The menu described above is recorded in the recording data of the DVD-Video disc 1 as VMGM_PGC or VTSM_PGC, and the title is recorded as a set of one or a plurality of VTS_PGCs.
Next, FIG. 3 shows the contents of the user program table 5 provided in the DVD video playback apparatus.
The user program table 5 is a table for registering a reproduction target unit that is a title TT or a chapter selected by the user, and has an entry for each reproduction target unit as shown in the figure. In each entry, the order indicating the registration order of the corresponding playback target unit, the playback target unit type indicating whether the playback target unit is the title TT or the chapter, and the playback target unit are identified. The reproduction target unit identification information, which is information, is used. Here, as the playback target unit identification information, for example, when the playback target unit is a title TT, a set of a video title set number VTSN specifying the title TT and a video title set title number VTS_TTN is registered. When the playback target unit is a chapter, a set of a video title set number VTSN that specifies the PTT indicating the head position of the chapter, a video title set title number VTS_TTN, and a PTT number PTTN is registered.

In such a configuration, the navigation manager 3 sets the presence / absence of the user program creation mode according to the user's selection.
Further, the navigation manager 3 accepts an operation for a button included in the user's menu via the input device 8 when the presentation engine 4 displays the menu on the display device 6, and the button operation corresponding processing shown in FIG. 4. The received user operation is processed.

As shown in the figure, in this button operation corresponding process, the user's button selection operation occurs (step 402), the user's button determination operation occurs (step 404), and the user's user program execution instruction operation occurs (step 406). ) And monitor.
If the user's button selection operation occurs (step 402), the selected button is set as a selected button (step 408), and the button is in a selected state with respect to the display form of the button set as the selected button. The selected display form is updated (step 410). At this time, if there is another button that has been set as the currently selected button, the setting of the other button as the currently selected button is canceled and the display mode of the other button is changed to normal. Update to the display form. Note that the normal display format of each button, the currently selected display format, and the determined display format described later are defined by the recorded data of the DVD-Video disc 1.

When the display form of the button set as the selected button is updated to the selected display form, the process returns to the monitoring of steps 402, 404, and 406.
On the other hand, if the user's button determination operation has occurred (step 404), the display mode of the currently selected button is updated to a determination-time display mode indicating that the determination operation for the button has been accepted (step 412).
Then, it is checked whether or not the user program creation mode is currently set (step 414). If the user program creation mode is not set, the command defined in the currently selected button is executed (step 414). 416), the process returns to the monitoring of steps 402, 404, and 406.

  On the other hand, if the user program creation mode is set (step 414), whether the command defined for the currently selected button is a command for instructing start of playback of a title or chapter such as JUMP_TT, JUMP_VTS_TT, and JUMP_VTS_PTT. If not (step 418), if not, execute the command defined for the currently selected button (step 416) and return to monitoring of steps 402, 404, 406.

  On the other hand, if it is determined in step 418 that the command defined for the currently selected button is a command for instructing the start of playback of a title or chapter such as JUMP_TT, JUMP_VTS_TT, or JUMP_VTS_PTT, The command defined in the button is analyzed, and the title or chapter for which the command indicates the start of playback is set as a new playback target unit. Then, a new entry is added to the user program table 5, and the next entry after the last of the orders registered in the existing entry and the reproduction of the new reproduction target unit are added to the added entry. The target unit type and the new reproduction target unit identification information are registered (step 420). Then, the display mode of the currently selected button is returned to the selected display mode (step 422), and the process returns to the monitoring of steps 402, 404, and 406.

  Next, when a user program execution instruction operation of the user occurs, it is checked whether or not there is a valid user program table 5 having an entry in which at least one reproduction target unit is registered (step 424). If so, the process returns to the monitoring of steps 402, 404, and 406. On the other hand, if there is a valid user program table 5 (step 424), a user program execution process described later is started (step 426), and the process returns to the monitoring of steps 402, 404, and 406. The user program execution instruction operation is received in accordance with, for example, an operation of a button key for receiving a user program execution instruction operation provided on the input device 8.

The procedure of the button operation handling process performed by the navigation manager 3 has been described above.
Here, an example of processing for registering a reproduction target unit in the user program table 5 by such button operation handling processing will be shown.
As an example, assume that when the user program creation mode is set, the same title menu as that shown in FIG. 2a is reproduced and displayed as shown in FIG. 5a.
In this case, when the user performs a selection operation of the title button of title 2, the button operation corresponding processing sets the title button of title 2 to the currently selected button as shown in b, and changes the display form of the button. By selecting the display mode during selection, the user is notified that the button is in a selected state. Next, when the determination operation is performed by the user, the determination is made to the user that the determination operation for the button has been accepted by setting the display mode of the title button of title 2 to the display mode at the time of determination as shown in c. To present. At this time, a command for instructing the start of playback of title 2 defined in the title button of title 2 is analyzed, and title 2 is additionally registered in the user program table 5 as a playback target unit. In this way, the title button of title 2 is restored to the selected display mode. If the user program creation mode is not set, playback of the title 2 is started in response to the determination operation accepted here.

  Next, in this state, when the user performs a selection operation of the title button of title 4, the button operation corresponding processing sets the title button of title 4 to the selected button as shown in e, and the button Is set to the selected display form, the user is notified that the button is in a selected state. Next, when the determination operation is performed by the user, the determination is made to the user that the determination operation for the button has been accepted by setting the display mode of the title button of title 4 to the display mode at the time of determination as shown in f. To present. At this time, a command for instructing the start of playback of the title 4 defined in the title button of the title 4 is analyzed, and the title 4 is additionally registered in the user program table 5 as a playback target unit. If the title 4 is additionally registered in the user program table 5 as a reproduction target unit, the title button of the title 4 is restored to the selected display mode as shown in g.

  Thereafter, similarly, while changing the display form of each button according to the user operation (h, i, j), the updating of the selected button according to the selection operation of the title button and the determination operation according to the selection operation. The command registered in the currently selected button is additionally registered in the user program table 5 as a playback target unit for the title instructing the start of playback.

Next, a case where the same PTT menu as the PTT menu shown in FIG. 2b is reproduced and displayed as shown in FIG. 6a when the user program creation mode is set will be taken as an example.
In this case, when the user performs a selection operation of the chapter button of chapter 2, the button operation corresponding processing sets the chapter button of chapter 2 to the selected button as shown in b, and changes the display form of the button. By selecting the display mode during selection, the user is notified that the button is in a selected state. Next, when the determination operation is performed by the user, as shown in c, the display mode of the chapter button of chapter 2 is changed to the display mode at the time of determination, so that the determination operation for the button is accepted. To present. At this time, a command for instructing the start of playback of the chapter 2 defined in the chapter button of the chapter 2 is analyzed, and the chapter 2 is additionally registered in the user program table 5 as a playback target unit. Thus, the title button of chapter 2 is restored to the currently displayed display form. If the user program creation mode is not set, the reproduction of chapter 2 is started in response to the determination operation accepted here.

  Next, when the user selects the next chapter button in this state, the next chapter button is set to the selected button as shown in e, and the display form of the button is set to the selected display form. As a result, the user is informed that the button is in a selected state. Next, when the determination operation is performed by the user, as shown in f, it is determined to the user that the determination operation for the button has been accepted by setting the display mode of the next chapter button to the display mode at the time of determination. Present. Further, since the next chapter button which is the currently selected button is not a button for instructing the start of playback of the title or chapter, the command defined in the next chapter button is executed.

As a result, as shown in g, the next page of the chapter menu shown in FIG. 2c is reproduced and displayed.
Next, when the chapter button selection operation of chapter 8 is performed, the button operation corresponding processing sets the chapter button of chapter 8 to the selected button as shown in h, and selects the display form of the button. By selecting the middle display mode, the user is notified that the button is in a selected state. Next, when the determination operation is performed by the user, the user is notified that the determination operation for the button has been accepted by changing the display mode of the chapter button of chapter 8 to the display mode at the time of determination as indicated by i. To present. At this time, a command for instructing playback start of the chapter 8 defined in the chapter button of the chapter 8 is analyzed, and the chapter 8 is additionally registered in the user program table 5 as a playback target unit. If the chapter 8 is additionally registered in the user program table 5 as a reproduction target unit, the title button of the chapter 2 is returned to the selected display mode as indicated by j.

  Thereafter, similarly, in accordance with the user operation, the display mode of each button is changed, the page of the chapter menu is changed, the selected button is updated according to the chapter button selection operation, and the selection according to the determination operation is performed. The command registered in the middle button is registered in the user program table 5 as the playback target unit of the chapter instructed to start playback.

Next, the user program execution process started in step 426 in FIG. 4 will be described.
FIG. 7 shows the procedure of this user program execution process.
As shown in the figure, in this process, each reproduction target unit registered in each entry of the user program table 5 (steps 702, 708, 710) is sequentially reproduced according to the order registered in the entry (step 702). 704, 706). Note that this user program execution processing may be such that the units to be reproduced registered in the entries of the user program table 5 are sequentially reproduced in the order registered in the entries (user program repeat reproduction). Good as well)

  Here, the sequential playback of each playback target unit as described above is registered in the entry when the playback target unit type registered in the entry of the playback target unit that is the playback target is a title. Playback of the title TT indicated by the playback target unit identification information is started and the title number TTN of the title that is currently played back, which is managed by the navigation manager 3 as the system parameter SPRM (4), is changed, or the menu (VMGM_PGC Or VTSM_PGC), or when the playback operation is stopped or paused (still), the playback of the title is terminated, and the next playback target unit is set as the playback target. This is done by starting playback. If the playback target unit type registered in the entry of the playback target unit that is the playback target is a chapter, playback starts from the PTT position indicated by the playback target unit identification information registered in the entry. When the PTT number PTTN of the PTT currently being managed, which is managed by the navigation manager 3 as the system parameter SPRM (7), changes (when the title being played is one_sequential_PGC_Title), or when the system parameter SPRM (4 ) When the title number TTN of the title currently being managed by the navigation manager 3 is changed, when the menu (VMGM_PGC or VTSM_PGC) is subject to playback, or when the playback operation is stopped or paused (still) ) When a condition occurs or when another PTT is a playback target location, As the completion of the reproduction of the torque, the next playback target unit for playback is carried out by starting the playback.

The user program execution process performed by the navigation manager 3 has been described above.
The navigation manager 3 stops the execution of the user program execution process when the user instructs to stop the execution of the user program during the user program execution process as described above. However, the reproduction of the title and chapter currently being reproduced continues as they are, and after the reproduction of the currently reproduced title and chapter is completed, an operation determined according to the recording data of the DVD-Video disc 1 is performed.

Further, when a menu call operation of the user occurs during the user program execution process as described above, the navigation manager 3 stops the execution of the user program execution process, and the call is instructed by the generated menu call operation. Play the selected menu.
The embodiment of the present invention has been described above.
In the above embodiment, a registration button is provided in the input device 8 without providing a user program creation mode, and a command for instructing the start of playback of a title or chapter is defined in the button operation corresponding process shown in FIG. When the registered button is operated when the selected button is set as the selected button, the title or chapter instructed to start playback by the command is registered in the user program table 5 as a playback target unit. You may correct it.

  In addition, a playback sequence that always returns to a specific title menu after title playback is defined. Only the DVD-Video disc 1 on which a plurality of titles are recorded is set as a playback target, and only the title is set as a playback target unit. In this case, in the button operation corresponding process shown in FIG. 4, when the determination or registration operation is performed, the command defined for the button that is being selected is the title of the playback target unit that instructs the start of playback. Instead of registering the reproduction target unit type and the reproduction target unit identification information in the user program table 5, the number of the button that is selected when the determination operation is performed may be registered in the user program table 5. Good. In the user program execution processing, each time the specific title menu described above is reproduced, the button numbers registered in the user program table 5 are sequentially extracted one by one, and the extracted number of the title menu being reproduced is extracted. The command defined in the button indicated by may be executed.

  Further, the case where the DVD-Video disc 1 is played back in the DVD video playback device has been described above. However, the above embodiment is a DVD audio playback device (video cabling audio player: VCAP) having a video playback function. The present invention can be similarly applied to the case of reproducing a DVD-Audio disc 1 on which recording data defining a visual menu for accepting selection of a track or group to be reproduced from a user is recorded. However, in this case, the visual menu is provided with a button for accepting selection of a track or group to be played back, and a command JUMP_TK for instructing start of playback of the track is provided on the button for accepting selection of a track to be played back. Since the command JUMP_TT-GR for instructing the start of group playback is defined for the button that is defined and accepts the selection of the group to be played back, the button operation corresponding processing described above corresponds to the button operation of such a menu. In the user program table 5, the track or group is registered as the above-mentioned reproduction target unit. In the user program execution process described above, tracks and groups are sequentially reproduced according to the user program table 5 created in this way.

  As described above, according to the present embodiment, the user can define the content to be played (titles and chapters in the DVD-Video disc 1 and DVD-Audio, as defined in the DVD-Video disc 1 and the DVD-Audio disc 1). Use visual menus (such as the title menu and PTT menu on DVD-Video disc 1 and the visual menu for accessing tracks and groups on DVD-Audio disc 1) to accept selection of tracks and groups on disc 1. Thus, a user program in which desired contents are registered can be created. Here, the visual menu for accepting the selection of the content to start playback from the user can usually grasp the contents of each content that accepts the selection of playback start from the visual menu to some extent from the display of the visual menu. To be created. Therefore, even if the user does not know the details of each content in advance, a plurality of desired contents can be registered in the user program by an easy operation such as a button operation on the visual menu. In addition, by executing the user program, a plurality of desired contents registered in the user program can be sequentially reproduced.

It is a block diagram which shows the structure of the DVD video reproducing apparatus which concerns on embodiment of this invention. It is the figure which showed the structural example of the menu which a DVD video playback apparatus displays. It is a figure which shows the user program table which concerns on embodiment of this invention. It is a flowchart which shows the button operation corresponding | compatible process which concerns on embodiment of this invention. It is a figure which shows the process example of the button operation corresponding | compatible process which concerns on embodiment of this invention. It is a figure which shows the process example of the button operation corresponding | compatible process which concerns on embodiment of this invention. It is a flowchart which shows the user program execution process which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Disk, 2 ... Driver, 3 ... Navigation manager, 4 ... Presentation engine, 5 ... User program table, 6 ... Display apparatus, 7 ... Audio | voice output apparatus, 8 ... Input device.

Claims (5)

The visual menu is read out from a recording medium in which a plurality of contents and a visual menu in which a plurality of display objects respectively associated with the contents are arranged are reproduced and displayed, and selected on the visual menu. A playback device that reads out and plays back the content corresponding to the display object from the recording medium,
Storage means for storing a user program;
User program creation means for registering the identification of the content corresponding to the display object designated by the user in the user program according to the designation of the display object on the reproduced and displayed visual menu;
A playback apparatus comprising: a user program execution unit that reads the content whose identification is registered in the user program from the recording medium and sequentially plays back the content. The playback device according to claim 1,
The recording medium is a DVD-Video disc,
The content is a title or a chapter,
The visual menu is a title menu or a PTT menu having a button as the display object,
The playback apparatus according to claim 1, wherein the user program creating means registers a title or a chapter in which the button command defined for the button designated by the user instructs the start of playback in the user program. The playback device according to claim 1,
The recording medium is a DVD-Audio disc,
The content is a track or a group,
The visual menu is a menu for accessing a track or group having a button as the display object,
The reproducing apparatus according to claim 1, wherein the user program creating means registers a track or group in which a button command defined for a button designated by a user instructs reproduction start in the user program. The visual menu is read out from a recording medium in which a plurality of contents and a visual menu in which a plurality of display objects associated with the contents are arranged are reproduced, displayed, and selected on the visual menu. In a playback device that reads out and plays back the content corresponding to the display object from the recording medium, the playback method sequentially plays back a plurality of content selected by a user,
Creating a user program in which the identification of the content corresponding to the display object designated by the user is registered in accordance with the designation of the display object on the reproduced and displayed visual menu;
A step of reading out the content whose identification is registered in the user program from the recording medium and sequentially reproducing the content. A computer program that is read and executed by a computer,
The computer,
The visual menu is read out from a recording medium on which a plurality of contents and a visual menu in which a plurality of display objects respectively associated with the contents are arranged, reproduced and displayed, and selected on the visual menu. Playback means for reading out and playing back the content corresponding to the display object from the recording medium;
Storage means for storing a user program;
User program creation means for registering the identification of the content corresponding to the display object designated by the user in the user program according to the designation of the display object on the reproduced and displayed visual menu;
A computer program that functions as a user program execution unit that reads out the content whose identification is registered in the user program from the recording medium and sequentially reproduces the content.