TWI272586B - Recording medium having data structure for managing reproduction duration of still pictures recorded thereon and recording and reproducing methods and apparatuses - Google Patents

Abstract

The data structure includes a playlist area storing at least one playlist. The playlist includes at least one playitem and at least one sub-playitem. The playitem provides navigation information indicating at least one still picture from a first file to reproduce and provides duration information for display of the still picture, and the sub-playitem provides navigation information for reproducing audio data from a second file.

Description

1272586 IX. Description of the Invention: [Technical Field] The present invention relates to a recording medium having a data structure for managing the reproduction of at least a static image thereon, and a method for reproducing and recording And equipment. [Prior Art]

The standardization of new high-density read-only and rewritable optical discs capable of recording large amounts of high-quality video and audio data has been rapidly progressing, and it is expected that related products of new optical discs will be available on the market in the near future. Blu-ray (81114 & 丫) rewritable discs (30-1^) and Blu-ray CD-ROM (80-110%) are examples of these new types of discs. Although the standard for BD-RE has been announced, the standardization of high-density CD-ROMs such as Blu-ray Disc (BD-ROM) is still in progress. Therefore, an effective data structure for managing the reproduction of a still image recorded on the high-density CD-ROM (such as BD-ROM) has not yet been published.

SUMMARY OF THE INVENTION A recording medium in accordance with the present invention includes a data structure for managing the reproduction of at least a static image recorded on the recording medium. In an exemplary embodiment, the recording medium includes a play form area that stores at least one play form. The play form includes at least one play item and at least one sub play item. The play item provides navigation information from a first file indicating at least one still image to be reproduced, and provides duration information for displaying the static 5 1272586 image. The sub-play item provides navigation information for reproducing audio material from a second file. In an embodiment, the duration information indicates whether the static image is displayed in one of a limited and an infinite period of time. And, when the duration information indicates that the still image is displayed for a limited period of time, the duration information may indicate a length of time to display the still image.

In another exemplary embodiment, the recording medium includes a data area in which presentation data is stored, wherein the presentation material is divided into a number of still image units. Each of the still image units includes at least one still image and associated data associated therewith. A navigation area of the recording medium stores at least one play form, and the play form includes at least one play item. The play item indicates at least one still image unit to be reproduced, and provides duration information for displaying the still image in the still image unit. In an exemplary embodiment, the related material includes graphical material, sub-title material, and the like.

In still another exemplary embodiment, the playlist further includes at least one sub-play item, and the sub-play item provides navigation material for reproducing the audio material from the second file. In an exemplary embodiment, the duration information indicates whether the static image is displayed in one of a limited and an infinite time period. Meanwhile, when the duration information indicates that the still image is displayed for a limited period of time, the duration information indicates a length of time during which the still image is displayed. The present invention further provides apparatus and methods for recording and reproducing data structures in accordance with the present invention, as well as recording and reproduction slide shows in accordance with the present invention. 6 1272586 [Embodiment] In order to fully understand the present invention, reference will now be made to the accompanying embodiments. For example, BD-ROM, BD-RE, etc., have a file or data structure for managing the reproduction of the audio material of Fig. 1 in accordance with the present invention. The features shown in Figure 1 are identical to the conventional BD-RE standard in accordance with the features of the present invention, and thus are not specifically described in detail. As shown in FIG. 1, the root directory includes at least one directory including a general file (not shown), an internal storage: (eg, *.mpls) PLAYLIST directory, an internal storage (*.clpi) CLIPINF directory, and A STREAM directory formatted audio/video (A/V) stream clip file (in the clip information file. The STREAM directory includes an MPEG2-formatted A/V stream file called a clip stream file. The video and audio The source packet of the data. For example, the video package includes a header and a transport packet. A source packet number is generally used as a reference number for accessing the source. The transport packet includes a packet identifier to identify a transport packet. The sequence of the transport packets to which they belong. The transport packets will have the same PID. The CLIPINF directory includes a video and audio data structure that illustrates the exemplary high-density optical discs in each A/V data flow diagram. The BD play form file has a scrapbooking information file, R#MPEG2-* · m 21 s), which is a correspondence or only a scrapbook file A/V data stream including a source packet of data. A sequence (PID) that includes the address of a source packet. The PID in the sequence of the file association of the clip 1272586 into the sequence of the seal of the access seal to enter the single release table and the table paste λ file. The far clipping information file also indicates the type of A/v data stream, sequence information, program information and timing information. The sequence information describes the Inter-% Base (ATC) and System Time Base (STC) sequences. For example, the column information indicates the number of sequences, the start and end times of each sequence, the address of the first source packet in each sequence, and the PID of the transport packet in each sequence. A program whose content is a fixed source packet sequence is called a one-way sequence. The private responsibilities also indicate the number of program sequences, the start sequence address of each program sequence, and the piD of the packet transmitted in a program sequence.

The timing information is called feature point information (cpi). One form of CP][is the entry point (EP) map. The EP map maps a timestamp (e.g., on an on time basis (ATC) and/or a system time base (STC)) to a source packet address (i.e., 'source packet number). The presentation timestamp (pTS) and the source packet number (SPN) are associated with an entry point in the AV stream; the PTS and its associated SPN point to a point on the AV stream. The packet that is pointed to is often referred to as an entry point packet. The PLAYLIST directory includes one or more play form files. The concept of playback is imported for easy editing/combination of clips for playback. One

The form structure is a collection of play intervals in the scrapbook. Each play can be called a play item. The playlist 箪#崇其巧_ 衣早4田架 additionally recognizes each of the broadcasted play items' and each play item is a slant, 隹λ only to the entry point (lN_poii leave point (OUT-point) , pointing to the one on the timeline of the clip file (such as 'presentation of the year on the basis of ATC or STC." The broadcast file can also include sub-play items, which also provide a ^8 τ points to the entry and exit points of the position on the timeline of a nuclear case. Second, Xia said, 8 1272586 play form file to identify the play item and sub play item, each play item or sub play item points to a scrap file or And identifying a clip information file that links the clip file. The clip information file is another clip file for mapping the play item to the source package. The play form may also include pointing to a specific position in a clip file (such as a specific bit) The play form mark of the address. The general information file (not shown) provides general information for managing the reproduction of the A/V data stream recorded on the optical disk.

In addition to demonstrating the data structure of the recording medium in accordance with an embodiment of the present invention, FIG. 1 also shows the areas of the recording medium. For example, the general information file is recorded in one or more general information areas, and the play form directory is recorded in one or more play form areas, and each play form in the play form directory is recorded in one of the record media or Most play form areas. Figure 2 shows an example of a recording medium on which the data structure of Figure 1 is stored. As shown, the recording medium includes a slot system information area, a database area and an A/V data stream area. The database area includes a general information file and a play form information area and a clip information area. The general information file and play form The information area has a general information file recorded in one of the general information file areas, and a PLATLIST directory and a play form file recorded in the information area of one of the play forms. The Clip Information area has a CLIPINFO directory recorded in it and a linked clip information file. The A/V data stream area has an A/V data stream for each title recorded therein. Video and audio materials usually form individual headings; for example, different movies represented by video and audio material will form different headings. Furthermore, a title can be organized into individual chapters, just as a book is usually a constituent chapter 9 1272586 卽0

Because of the large storage capacity of new, high-density recording media (such as BD-ROM and BD-RE discs), different titles, various versions of a title, or portions of titles can be recorded and thus can be reproduced from the recording medium. For example, video material representing different photographic angles can be recorded on the recording medium. As another example, a version or a portion of a title that is linked in a different language may be recorded on the recording medium. As another example, a version of the director and a title can be recorded on the recording medium. Adult, youth and youth versions (ie different parental control versions) of various versions of the title or part of the title may be recorded on the record medium. Each version, shooting angle, etc., represents a different reproduction path, and the video material in these examples is called a multiple reproduction path video material.

Because of the large storage capacity of new high-density recording media such as BD-ROM, still images or images can be recorded and reproduced in an organized and/or user-interactive manner (e.g., slide show). The data structure for managing the reproduction of still images of high density recording media in accordance with an embodiment of the present invention will be described in conjunction with a method and apparatus for recording and reproducing still images in accordance with an embodiment of the present invention. Figure 3 illustrates an embodiment of a data structure and method for managing a still image of a high density recording medium such as a BD-ROM. As shown in Fig. 3, a scrapbooking includes a scrapbook file of a still image file and a clipped asset file. The scrapbook file includes a still image data file (such as a JPEG data file) and related data files (such as graphics and subtitle data files) synchronized with it to form a static image unit. In the example of Figure 3, 10 1272586 each still image unit includes a single still image (such as a JPEG data file). Furthermore, the files in each static image unit share the same file name, except for the extension file names. For example, a still image unit may include a JPEG image file of "01001.JPG", a graphic image file of "01001.GRP", and a subtitle data file of "01001.SUT".

As further shown in FIG. 3, a still image map (SP_map) includes a scrapbooking information file associated with the scrapbook file. The still image map specifies the display order of the still image units. Specifically, the still image map (SP_map) contains a form for the static image file name of the display order of a particular still image unit. In the form, the filenames are configured in the same order in which they are waiting to display still image units, such as, for example, in a slide show that joins the still image map (SP_map).

The still image map is coupled to a play item of a play form for playing control of the still image files. The sub-play item of the play form can be coupled to an audio stream that is recorded in a separate MPEG 2 transport stream. As shown in Fig. 3, the play item (?1&乂116111) in the playlist contains the entry image (11^_?丨(^11^) information and the exit image (OUT_picture) information, respectively. The start position and the end position of the still image in the still image file to be reproduced. As shown, the enter image information and the leave image information provided by the play item link the play item to the static picture. The static image map of a scrapbooking information file linked to the clip file. As further shown, the sub play item (SubPlayltem) in the play form contains sub play item entry time (SubPlayItem_IN_time) information and sub play item departure time. 11 1272586 (SubPlayltem_OUT_time) information for a separate audio file to be reproduced with the static image file. The audio material can be reproduced in a synchronized or asynchronous manner with the connected still image.

As shown in Fig. 4, each of the SP maps entering the still image map (sp_map) may additionally include display duration information for specifying the display duration of each of the still image units. The duration information indicates that the connected still image units are displayed with a limited or indefinite duration. The length of the limited duration can be provided when a limited duration is indicated. When an infinite duration is indicated, a remanufacturing device will reproduce the still image unit for display until the opposite user type is received. Meanwhile, in Fig. 4, a still image unit may include various types of still images (e.g., JPEG images, thumbnail images, etc.) together with such related materials (such as graphic materials, subtitle materials, etc.).

Figure 5 illustrates a set of still image files that can be linked to more than one still image map. In Fig. 5, the still image file system association includes SP_map#1 in Clip_Info#1 and SP_map#2 included in Clip-Info#2. In SP-map#l, the order in which the image name is given can be different from SP-map#2. Since there can be many static image maps for the same group of still image files, the same static image units can be presented in a different order. In this example, the display duration information of the still image unit is included in a play form or a play item that links the corresponding still image map, as described in detail below with reference to Fig. 6. As shown in Figure 6, the play item in the playlist (Playltem) 12 1272586

The information containing the incoming image (IN-picture) information and the outgoing image (〇 UT_picture) respectively correspond to the start position and the end position of the static images in the still image file to be reproduced. As shown, the incoming image information provided by the play item and the exit image = Bellows will link the play item to the still image map of a clip information file associated with the still image clip file. As shown in more detail, the far sub play item (SubPlayltem) in the play form contains sub play item entry time (SubPlayItem-i (time) information and sub play item departure time (SubPlayItem_OUT one time) information, for example, to be A separate audio file (not shown) reproduced with the still image file. The audio material can be reproduced synchronously or asynchronously with the connected still image. The play form also includes some play form symbols PlayListMark. The play form mark points to the beginning of a still image unit, and can hold the time information for the connected silent image unit, for example. For example, the display duration of each still image unit can be recorded in the connected time. The duration information of the play form is blocked. Or, and, a duration information block can be included in the linked play item, and the duration information is included in the duration information column. Limited

艮 Λ* Second, the time display shows the connected still image unit. The length of the finite duration may be provided when the indication is continued for a period of time. When the indication 1 is to continue the day, the remake device will reproduce the static image for display until the opposite user type is received. The unit Μ play item provides navigation information for reproducing more than one static picture element h and the display duration is displayed in the static image unit and the static image unit such as a static image unit. 13 1272586 The play form is saved as a form; or, the display duration information can be recorded as 1-byte data. In this case, an additional flag such as 'Share_flag' may be assigned to specify which of the two duration information methods are available.

Figure 7 illustrates a JPEG file containing graphic data. As shown, the header of a JPEG still image file (e.g., 01001.JPG) may include graphic image data, with the same application mark, an application mark length, and a BD-ROM ID code. The JPEG image data and the graphic data are generated separately and then incorporated into a single JPEG file. A graphics image stream is recorded in a graphics file (*.GRP) as a graphics unit, which records the entire PES (encapsulated basic data stream) packet or only the bearer of the PES packet.

Figure 8 shows a graphical data and a plurality of subtitle data multiplexed into a dedicated packet data stream and an MPEG 2 transport stream. As shown, the graphics file can include a graphics unit and multi-language units (Lingual_Unit #1 through #k) corresponding to the multi-language sub-title streams (Subtitle #1 through #k). In the graphics file, the graphics unit and the multi-language unit may be sequentially recorded as a dedicated packet stream or may be recorded as an MPEG 2 transport stream containing the transport packet. Figure 9 illustrates the structure of a PES packet in accordance with the present invention. As shown, the display time of the subtitle data is determined by a presentation time stamp (PTS) and a decoding time stamp (DTS) included in the header of the corresponding PES packet. In a browsable slide show, the display duration of each of the still images is typed according to the user (eg, will be displayed until the opposite user type is received), the presentation timestamp is meaningless, and thus is set to 14 1272586 "0x00000000, as further shown in FIG. 9, the bearer of the PES packet may include the cut-in time and the cut-out time information of the sub-title data. When the specific cut-in time and cut-out time information of the disappearing subtitle are specifically displayed, Provides time information related to the presentation time stamp (PTS).

Fig. 10 is a view showing an outline of a part of the structure of the optical disk apparatus to which the present invention is applied. As shown, the optical reproducing apparatus includes an optical pickup 11 for reproducing material from a compact disc. A VDP (Video Disc) system 12 controls the reproducing operation of the optical pickup 11, and demodulates the data reproduced by the optical pickup 11. The VDF 12 produces an AV stream that can also be fed to a D/A converter 13 to produce an analog version of the AV stream.

The VDP system 12 controls the optical pickup 11 and demodulates the reconstructed data based on user input received from a user interface and navigation and management information recorded on the optical disc in accordance with the present invention. For example, to perform a slide show, the VDF system 12 refers to the still image map (SP_map) and reproduces the still image image, the name of which is included in the static image unit in the order of reproduction and display. Like the picture (SP_map). The VDF system 12 may reproduce the still image units for a limited or infinite duration in accordance with the duration information provided by any of the above embodiments. Figure 11 is a diagram showing an outline of an embodiment of an optical disk recording and reproducing apparatus in accordance with the present invention. As shown, an AV encoder 9 receives and encodes data (e.g., still image data, audio material, etc.). The AV encoder 9 outputs the encoded data together with the encoded information and the stream attribute information. A multiplexer 8 will encode the code according to the coded information and the data stream attribute information 15 1272586

Multiplex processing is performed to produce, for example, an MPEG-2 transport stream. A source packetizer 7 encapsulates the transport packet from the multiplexer 8 into a source packet in accordance with the video/audio format of the optical disc. As shown in Fig. 11, the operations of the AV encoder 9, the multiplexer 8, and the source packer 7 are controlled by a controller 10. The controller 1 receives the user input on the recording operation and provides control information to the AV encoder 9, the multiplexer 8, and the source packer 7. For example, controller 10 instructs AV encoder 9 to perform in the form of a code indicating that multiplexer 8 is generated in accordance with the transport stream and that source packer 7 is in accordance with the source packet format. The controller 10 further controls a drive 3 to record the output from the source packer 7 on the disc. The controller 10 also generates navigation and management information for managing the reproduction of the data recorded on the optical disc. For example, based on information received via the user interface (eg, an instruction set stored on a disc, provided by a computer system via an internal network or the Internet, etc.), the controller 1 controls the drive 3 to record pictures 1 through 9 One or more of the data structures are on the disc.

In the remake, the controller 1 〇 controls the drive 3 to reproduce this data structure. Based on the information contained therein, and the user input received through the user interface (such as 'the control key on the record and the rework device or a remote end of the device'), the controller 1 controls the drive 3 from The disc reproduces the material. For example, as discussed above in relation to embodiments of the present invention, a still image or a plurality of still images may be reproduced based on the navigation information along with the audio material. Furthermore, an image or group of images can be recreated as part of a slide show or a slide show. As mentioned above, a slide show can be synchronized, viewable, and the like. 16 1272586

The reworked source packet is received by a source decapsulator 4 and converted into a data stream (e.g., an MPEG-2 transport packet stream). A solution multiplexer 5 decodes the data stream into coded data. An AV decoder 6 decodes the encoded material to produce the original material fed to the AV encoder 9. At the time of reproduction, the controller 10 controls the operations of the source depacketizer 4, the demultiplexer 5, and the AV decoder 6. The controller 10 receives user input during the re-operation and provides control information to the AV decoder 6, the demultiplexer 5, and the source depacketizer 4. For example, the controller 10 instructs the AV decoder 6 to perform the decoding mode, instructing the demultiplexer 5 to perform the multiplex processing according to the transmission stream, and instructing the source depacketizer 4 to follow the source packet format. Although Fig. 11 is illustrated by a recording and reproducing apparatus, it should be understood that the portion of the recording or reproducing function provided in Fig. 11 can be used, and only the recording or reproducing apparatus can be provided.

As can be appreciated from the above disclosure, the present invention provides a recording medium having a data structure for managing still images recorded on a high-density recording medium such as a high-density optical disc such as a BD-ROM. For example, the data structure allows for the display of still images in a variety of ways and can be combined with audio data. The method of managing a still image of a high density recording medium in accordance with the present invention provides various static control operations, such as duration management, and allows the static image to be reproduced in conjunction with the associated subtitle data or graphical image. It will be apparent from the foregoing description that the present invention provides a method and apparatus for recording a data structure on a high density recording medium on a high density recording medium for managing still images recorded on the recording medium. The above description further provides a method and apparatus for reproducing a still image on a high density recording medium based on a data structure (also recorded on the high density recording medium) for managing the reproduction of the still image. While the invention is disclosed herein with respect to a limited number of embodiments, those skilled in the art should be able to understand various modifications and changes. For example, although illustrated in a few examples with respect to a BD-ROM disc, the invention is not limited to this disc standard or to a disc. All such modifications and variations are intended to fall within the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0009] The above features and other advantages of the present invention will become more apparent from the detailed description of the appended claims appended <RTIgt; Embodiments; FIG. 2 illustrates an example of a recording medium having the data structure of FIG. 1 stored thereon;

Figure 3 illustrates a portion of a detailed embodiment of the data structure of Figure 1, and a method for managing a still image of a high density recording media file in accordance with the present invention; Figure 4 illustrates an embodiment of the present invention, Wherein the display duration information is included in a still image map; FIG. 5 illustrates an embodiment of the invention in which a set of still image files are coupled to two still image maps; 18 1272586 FIG. 6 illustrates the invention An embodiment wherein the display duration information is included in a play form or a play item; FIG. 7 illustrates a JPEG file containing graphic data; and FIG. 8 illustrates a graphic data and a plurality of subtitle data processed by multiplexing a dedicated packet stream and an MPEG 2 transport stream; FIG. 9 illustrates a structure of a PES packet in accordance with the present invention; FIG. 10 illustrates a schematic view of a portion of a disc remanufacturing device to which the present invention is applied, and

Figure 11 illustrates another embodiment of a recording and reproducing apparatus in accordance with the present invention.

[Main component symbol description] 3 Driver 4 Source decapsulator 5 Demultiplexer 6 AV decoder 7 Source packer 8 Multiplexer 9 AV encoder 10 Controller 11 Optical pickup 12 Video playback system 13 Digital/analog Converter 19

Claims (1)

1272586 X. Patent Application Range: 1. A recording medium having a data structure for managing a replay duration of a still image, comprising at least: a play form area storing at least one play form, the play form including at least one Playing the item and at least one sub-playing item, the play item providing navigation information from a first file indicating at least one still image to be reproduced, and providing duration information for displaying the still image, and the sub-item The play project provides navigation information from a second file to reproduce the audio material. 2. The recording medium mentioned in the first application of the patent scope includes: a storage area for storing the first and second files. 3. The recording medium of claim 1, wherein the play item provides navigation information for reproducing the presentation material from the first file, the presentation material including at least the static image and the static image Like related information. 4. The recording medium as described in item 3 of the patent application, wherein the relevant information includes graphic materials. 5 · The recording medium mentioned in item 3 of the patent application, wherein the relevant information includes subtitle information. The recording medium of claim 3, wherein the presentation material is divided into one or more still image units, thereby causing each of the still image units to include at least one still image and associated with it data. 7. The recording medium as described in claim 1 of the patent application, further comprising: a data area storing the first file, and the first file does not include audio data. 8. The recording medium of claim 1, wherein the duration information indicates whether the static image is displayed in one of a limited and an infinite time period. 9. The recording medium of claim 8, wherein when the duration information indicates that the still image is displayed for a limited period of time, the duration information indicates a length of time during which the still image is displayed. 1 0. A recording medium having a data structure for managing a replay duration of a still image, the method comprising: at least: a play form area storing at least one play form file, the play form file including at least one play item and At least one sub-play item, the play item provides navigation information from a first data stream indicating at least one still image to be reproduced, and providing duration information for displaying the static image, the sub-play item Providing a second data 21 1272586 stream separated from the first data stream to reproduce navigation information of an audio data stream. The recording medium of claim 10, wherein the duration information indicates whether the still image is displayed in one of a limited and an infinite period of time. 1. The recording medium of claim 11, wherein when the duration information indicates that the still image is displayed for a limited period of time, the duration information indicates a length of time during which the still image is displayed. 1 3 - a recording medium having a data structure for managing a replay duration of a still image, the method comprising: at least: a data area storing the presentation material, the presentation material being divided into some static image units, each static The image unit includes at least one still image and associated data associated therewith, the related data does not include audio data; and a navigation area storing at least one play form, the play form includes at least one play item, the play item indicates the At least one of the static image units is reworked, and duration information is provided for displaying the still image in the still image unit. 1 4. The recording medium of claim 13, wherein the related material in the at least one still image unit comprises graphic material. 1 5. The recording medium of claim 13 wherein the related material in at least 22 1272586 a still image unit comprises subtitle data. 1 6. The recording medium of claim 13 wherein the data area stores the present information in a first scrap file and stores the audio data in a second scrap file. 1 7. The recording medium of claim 16, wherein the play form further comprises at least one sub-play item, the sub-play item being provided from the second clip file to reproduce the audio material. News. 1 8 The recording medium of claim 13, wherein each of the still image units includes only one still image. 1 9. The recording medium of claim 13, wherein the duration information indicates whether the static image is displayed in one of a limited and an infinite time period. 20. The recording medium of claim 19, wherein when the duration information indicates that the still image is displayed for a limited period of time, the duration information indicates a length of time during which the still image is displayed. 2 1. A recording medium having a data structure for managing the reproduction duration of a still image, the recording medium comprising at least: 23 1272586 a data area for storing presentation data in a first scrap file and storing audio In a second clip file, the presentation data is divided into some static image units, and each static image unit includes at least one still image and related information connected thereto, and a navigation area storing at least one play form, the play form including at least one play item and at least one sub play item, the play item providing navigation information indicating the presentation material from the first clip file to be reproduced, and providing Duration information to display each of the still images specified for reproduction, the sub-play item being provided from the second clip file to reproduce the navigation information of the audio material. 2 2. The recording medium of claim 13, wherein the duration information indicates, for each of the still images, whether the static image is displayed in one of a limited and an infinite time period. The recording medium of claim 22, wherein when the duration information of the play item indicates that a still image is displayed for a limited time period, the duration information indicates a length of time to display a static image. image. 2 - A method for recording a data structure for managing a reproduction duration of at least one still image on a recording medium, the method comprising: recording at least one play form on the recording medium, the playing Form package 24 1272586 · 瀛 ▲ includes at least one play item and at least one sub play item, the play item provides navigation information indicating at least one still image from a first file for reproduction, and providing for displaying the static picture Such as duration information, and the sub-play item provides navigation information for reproducing audio material from a second file. A method of reproducing a data structure for managing a reproduction duration of at least one still image on a recording medium, the method comprising at least: Retrieving at least one play form from the record medium, the play form including at least one play item and at least one sub play item, the play item providing navigation information indicating at least one still image from a first file to be reproduced, and Providing duration information for displaying the still image, and the sub-play item provides navigation information for reproducing audio material from a second file. 26. Apparatus for recording a data structure for managing a reproduction duration of at least one static image on a recording medium, the apparatus comprising at least: a driver for driving an optical recording device to record data on the recording medium; a controller for controlling the driver to record at least one play form on the recording medium, the play form including at least one play item And at least one sub-play item, the play item provides navigation information indicating at least one still image from a first file to be reproduced, and providing duration information for displaying the still image, and the sub-play item is provided Navigation information for reproducing audio material from a second file 25 1272586. 27 - A device for reproducing a data structure for managing a reproduction duration of at least one still image on a recording medium, the device comprising at least a driver for driving an optical reproducing device Reproduce the information recorded on the record medium; a controller for controlling the drive to reproduce at least one play form from the recording medium, the play form comprising at least one play item and at least one sub play item, the play item providing at least one static picture from a first file The information is displayed in a remake and provides duration information for displaying the still image, and the sub-play item provides navigation information for reproducing audio data from a second file. 26 1272586 VII. Designated representative map: (1) The designated representative figure of this case is: (3). (2) A simple description of the symbol of the symbol of the representative figure: None 8. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: