KR20030035864A - Method and apparatus for reproducing contents recorded on an information storage medium by interactive mode - Google Patents

Abstract

PURPOSE: A method for reproducing contents in an interactive mode and an apparatus thereof are provided to reproduce the corresponding contents in the interactive mode even if information required for reproducing the corresponding contents in the interactive mode is not recorded at a data storage medium. CONSTITUTION: A presentation engine confirms whether information for reproducing contents in an interactive mode is recorded at a disk. If so, a reproduction control information file and a mark-up document are read for reproducing the corresponding video title. If not, a network data transmitting and receiving part reads the corresponding reproduction control information file and mark-up document from the Internet and stores the same at a cache memory. The presentation engine reproduces the corresponding video title in the interactive mode by using the reproduction control information file and the mark-up document stored at the cache memory.

Description

Method and apparatus for reproducing contents recorded on an information storage medium by interactive mode}

The present invention relates to a method and an apparatus for reproducing contents recorded in an information storage medium in an interactive mode.

Interactive DVDs that can be played in an interactive mode based on a personal computer (PC) have been proposed. Interactive DVD has been proposed in which markup documents are recorded together with AV data (hereinafter referred to as "interactive DVD"). AV data recorded on the interactive DVD can be reproduced in two ways. One is a video mode that is displayed in the same manner as a normal DVD, and the other is an interactive mode in which reproduced AV data is displayed through a display window defined by a markup document. The display screen displayed in the interactive mode is called an interactive screen.

When the interactive mode is selected by the user, the browser loaded on the PC interprets and displays the markup document recorded on the interactive DVD. The AV data selected by the user is displayed on the display window of the markup document. The markup document is typically an HTML document. For example, when the AV data is a movie, a video is output on the display window of the HTML document, and various additional information about the movie may be displayed on the rest of the script, the plot, the actor's photograph, and the like. The additional information may be displayed in synchronization with the title (AV data). For example, when a specific actor begins to appear, a markup document containing history information about the actor is called and displayed.

However, since information supporting the interactive function is not recorded in the conventional DVD-Video, it cannot be reproduced in the interactive mode. In other words, content recorded on an information storage medium for which information supporting the interactive function is not recorded cannot be reproduced in the interactive mode.

Furthermore, even if the disc supports the interactive mode, the contents displayed on the interactive screen cannot be updated.

Accordingly, it is an object of the present invention to provide a method and apparatus for reproducing in an interactive mode the contents recorded on an information storage medium on which information necessary for reproducing in the interactive mode is not recorded.

It is another object of the present invention to provide a method and apparatus for reproducing content recorded on a disc that does not support the interactive function in the interactive mode.

It is still another object of the present invention to provide a method and an apparatus capable of updating the contents of an interactive screen in playback in an interactive mode.

It is another object of the present invention to provide a method and apparatus for reading text data information linked to a markup document in reproduction in the interactive mode.

1 is a schematic diagram of a playback system according to a preferred embodiment of the present invention;

2 is a functional block diagram of the playback apparatus of FIG. 1;

3 is an example of the remote controller of FIG. 1;

4 is an example of a directory structure of a disk supporting an interactive mode;

5 is a reference diagram schematically illustrating a process of playing a disc supporting an interactive mode;

6 is an example of a directory structure of a disc that does not support interactive mode;

7 is a reference diagram schematically illustrating a process of playing a disc that does not support the interactive mode in the interactive mode;

8 is a reference diagram for briefly explaining a method of updating contents of an interactive mode playback screen;

9 is a flowchart for explaining a playback method according to an embodiment of the present invention;

10 is a flowchart for explaining a playback method according to another embodiment of the present invention.

According to the present invention, there is provided a method for reproducing contents recorded in an information storage medium in an interactive mode, comprising: (a) receiving information necessary for reproducing the contents in an interactive mode from the Internet or an information storage medium; Reading; And (b) playing the content in an interactive mode based on the received or read information.

Step (a) comprises: (a1) checking whether information for reproducing in the interactive mode is recorded on the information storage medium; And (a2) requesting and receiving the information from a predetermined server device if it is not recorded.

Step (a2) may include (a21) transmitting the identifier of the content to the server device; And (a22) receiving information corresponding to the identifier from the server device.

A method for reproducing a video title recorded on a disc in an interactive mode, the method comprising: (a) requesting and receiving information necessary for reproducing the video title in an interactive mode to a predetermined server device through the Internet; And (b) playing the video title in an interactive mode based on the received information.

The step (a) includes (a1) requesting and receiving a reproduction control information file and a markup document required for playing the video title in an interactive mode, and the step (a1) includes (a11) the server apparatus. Transmitting an identifier of the video title to the user; And (a12) receiving a reproduction control information file and a markup document corresponding to the identifier, wherein the operation (a11) includes recording a client executable code for recognizing an identifier of the video title from the server device. Preferably, the method includes receiving a markup document.

Further, step (a12) may include (a121) receiving a markup document for downloading the reproduction control information file; And (a122) reading and receiving the position of the reproduction control information file linked to the markup document received in step (a121).

In the markup document of step (a121), an execution code for inserting a link tag to which the reproduction control information file is linked or calling an application program interface (API: Application Programmable Interface) for downloading the reproduction control information file is provided. It is preferable to insert. The text data may be retrieved using the link tag, and the indication information indicating that the text data is a reproduction control information file for reproduction control purposes is inserted in the reproduction control information file.

According to another aspect of the present invention, there is provided an apparatus for reproducing contents recorded in an information storage medium in an interactive mode, the apparatus comprising: a reading unit for reading the contents; A decoder for decoding the read content; And a network data transceiver configured to transmit and receive information necessary for playing the content in an interactive mode from the outside via the Internet, and to reproduce the data in an interactive mode read from the information storage medium or received by the network data transceiver. It is also achieved by an apparatus characterized in that the content is played back in an interactive mode using the information necessary to make it possible.

The information necessary for the reproduction in the interactive mode includes a reproduction control information file for reproducing the content and a markup document to be displayed together with the content, and interprets and executes the reproduction control information file and the markup document. A presentation engine for playing; And a blender for blending the decoded content and the reproduced markup document.

The network data transceiver transmits an identifier of the content to a server device and receives interactive information corresponding to the identifier from the server device.

In addition, the above object is a device for reproducing a video title recorded on a disc in an interactive mode, the network data transmission and reception unit for requesting and receiving information necessary for reproducing the video title in the interactive mode to a predetermined server device via the Internet; It is also achieved by an apparatus that includes and plays the video title in an interactive mode based on the received information.

Preferably, the network data transmission / reception unit requests and receives a reproduction control information file and a markup document required for reproducing the video title in the interactive mode.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification, a "markup document" refers to a document written in a markup language such as XML or SGML, as well as source code or executable code written in a scripting language (for example, JavaScript) or executable code (for example, Java applet). The document is generically used to refer to a file inserted or inserted into a markup document and used for screen display. That is, a markup document is a kind of application required for reproducing AV data in an interactive mode. The "interactive screen" is a screen which is shown during reproduction in the interactive mode, and the AV screen is embedded in the markup document screen. The "AV screen" refers to a screen on which AV data is reproduced and displayed and sensed at the user's time, and the "markup document screen" refers to a screen at which the markup document is reproduced and displayed and sensed at the user's time.

The playback apparatus according to the present invention enables not only the disc 100 according to the present embodiment to support the interactive mode, but also the disc to which the disc 100 does not support the interactive mode. Furthermore, it is possible to update the contents of the markup document screen displayed together with the contents recorded on the disc 100.

1 is a schematic diagram of a playback system according to a preferred embodiment of the present invention.

Referring to FIG. 1, the playback system includes a disc 100, a playback device 200, a TV 300 as a display device according to the present embodiment, and a remote controller 400. The remote controller 400 transmits a user's control command to the playback device 200. If the information necessary for playing in the interactive mode is not recorded on the disc 100 according to a user's control command, the playback apparatus 200 accesses the Internet, downloads the necessary information, and plays the corresponding content in the interactive mode to display the TV ( To 300). In addition, in accordance with the user's control command is connected to the Internet to download a new version of the content recorded on the disk 100. The TV 300 displays content and / or information received from the playback device 200.

2 is a functional block diagram of the playback apparatus 200 of FIG. 1.

Referring to FIG. 2, the playback apparatus 200 includes a reader 1, a buffer memory 2, a cache memory 3, a decoder 4, a presentation engine 5, a network data transmission and reception unit 6, and A blender 7.

The reading unit 1 reads data from the disc and the DVD (Digital Versatile Disc) 100 according to the present embodiment. The buffer memory 2 buffers the AV (Audio / Video) data read by the reading unit 1. The cache memory 3 caches markup documents read from the reading unit 1, markup documents received by the network data transmitting and receiving unit 6 from the Internet, and the like. The presentation engine 5 interprets the read markup document to confirm the position of the display window and then causes the AV data stream output from the decoder 4 to be displayed on the display window. The network data transmission / reception unit 6 reads information necessary for reproduction in the interactive mode, the reproduction control information file, and the markup document from the Internet when the inserted disc 100 is a disc that does not support the interactive mode. The blender 7 blends the decoded AV data and the markup document and outputs them to the TV 300.

3 is an example of the remote controller 400 of FIG. 1.

Referring to FIG. 3, the remote controller 400 is provided with various function buttons. The TV button 41 is a button for receiving a broadcast signal from the outside to watch through the TV 300 and the DVD button 42 is a button for watching AV data provided from the playback device 200 through the TV 300. to be. Numeric / special character buttons 43 for selecting a channel number and the like are disposed on an upper front surface of the remote controller 400. Setup (44) is a button that calls the OSD (On Screen Display) menu to set up the playback device, H / E (45) is the language switch button, SP (46) is the space button, and DEL (47) is delete button. Screen Mode 48 is a button for switching the display mode of the screen, Menu 49 is a button for calling the menu screen, and Content Info 50 is a button for downloading predetermined information from the Internet according to the present invention. to be. Reference numeral 52 is a direction key for moving the highlight information displayed on the display screen of the TV (300). Enter 51 is a button for selecting a menu in which highlight information is located. When playing a video title, you can switch the language of the audio using Audio (53), use the Sub Title (54) to switch the language of the subtitles, and use Angle (55) to change the language of the screen. You can switch angles. Focus change 58 is used to move the current highlight information on the display screen. Return 57 is used to move between layers in a hierarchical menu. Exit 56 is a button for moving from the menu screen to the playback screen of the video title. Since the remote controller 400 of FIG. 3 is an example provided to correspond to the DVD 100 in which a video title is recorded, specific function buttons and the number thereof may be changed. In addition, at least some of the function buttons may be incorporated into the OSD menu, and vice versa, a part of the OSD menu may be implemented as the function buttons.

4 is an example of a directory structure of a disk supporting interactive mode.

4, a video directory VIDEO_TS containing AV data is provided in the root directory. In the directory VIDEO_TS, a file VIDEO_TS.IFO in which reproduction control information for the entire video title is recorded is arranged. In VIDEO_TS.IFO, language information designated as a default value for a video title is recorded. Subsequently, a file VTS_01_0.IFO in which the playback control information for the first video title set is recorded is recorded, and VTS_01_0.VOB, VTS_01_1.VOB, ... that constitute the video title set are recorded. VTS_01_0.VOB, VTS_01_1.VOB, ... are video titles that constitute a video title set, that is, a video object. Each VOB contains a VOBU consisting of a navigation pack, a video pack, and an audio pack. A detailed configuration is disclosed in the DVD-Video standard "DVD-Video for Read Only Memory Disc 1.0".

The root directory is also provided with an interactive directory DVD_ENAV in which information for supporting the interactive mode is stored. The reproduction control information file DVD_ENAV.IFO is recorded in the directory DVD_ENAV. For example, the playback control information file includes the definition, configuration, number of titles included, basic information about the title, language used for the title, and playback control information for the title, such as VIDEO_TS.IFO and VTS_01_0.IFO. Reproduction control information, subtitles, fonts, and the like, markup document display information such as resolution and color, copyright information, and text data information written by a content provider are recorded. As the copyright information, an International Standard Recording Code (ISRC) may be recorded. ISRC is an international standard code used to identify music, songs, music videos, etc., and is given by the Recording Industry Association of America (RIAA). ISRC may be used as a video title identifier. The text data information has a predetermined text data structure, and a predetermined API for searching text data may be provided. Further, the directory DVD_ENAV stores the initial start markup document INDEX.XML and other markup documents for display with the video title. In addition, a file to be inserted into a markup document and displayed together may also be stored.

On the other hand, BCA (Burst Cutting Area) code may be recorded on the back of the disk. The BCA code is recorded as a bar code along the circumference of the disc to protect copyrights and the like. The BCA code can be used as a disk identifier. The disc identifier and video title identifier may be recorded in other positions as other codes (eg, UPC codes) in addition to the BCA code and the ISRC.

5 is a reference diagram schematically illustrating a process of playing a disc supporting the interactive mode.

Referring to Fig. 5, when a user inserts an interactive disk, the playback apparatus reads DVD_ENAV.IFO, which is a playback control information file recorded on the disk, and interprets the playback control information file to read INDEX.XML designated as an initial start markup document. Read. If a playback control information file is linked to the initial start markup document INDEX.XML, the video title is played back in interactive mode. When the playback control information file on the disc reads text data from the initial start markup document, the AV screen and the markup document in which the video title is played back as shown in (c) are displayed as shown in (a). The reproduced screen is displayed in the interactive mode displayed together.

The following is an example of INDEX.XML read from the disk 100.

<? xml version = 1.0?><! DOCTYPE html PUBLIC-// DVD // DTD XHTML DVD-HTML 1.0 // EN "http://www.dvdforum.org/enav/dtd/dvdhtml-1-0.dtd "><html><head><title> startup markup document </ title><link rel =" stylesheet "type =" text / css "href =" starwars.css "/><link rel =" dvd-xifo " type = "application / dvd-xifo" href = "dvd: //dvd_enav/dvd_enav.ifo" id = "xifo"/><script type = "text / ecmascript"><!-function load_handler () {// set IDCD (= 1000) to 'testinp' control.xifo.FindTextData (1000): textinp.value = xifo.TextData:}-></script></head><body onload = "load_handler ()" background = "url (dvd :)"><script type = "text / ecmascript"><!-dvdVideo.Play();-><p> input text: <input type = "text" name = "inputtxt" value = "" id = "textinp"></p></script></body></html>

In the source code above, <link rel = "dvd-xifo" type = "application / dvd-xifo" href = "dvd: //dvd_enav/dvd_enav.ifo" id = "xifo" /> is written to disc 100 It instructs to play the video title on the basis of the file DVD_ENAV.IFO. This link tag also provides a way to retrieve text data inside the file DVD_ENAV.IFO. For example, xifo.FindTextData (1000) of the source code; Means to find a text item with a value of 1000 in CD_ENAV.IFO and bring it to xifo.TextData. Data stored in xifo.TextData can be read using x = xifo.TextData. In such a text data reading method, it is also possible to link several reproduction control information files to a markup document. Below is the interface structure for the scripting language to handle text data that is linked to an element in a link tag.

interface LinkTextData {DOMString TextData; unsigned long TextDataIDCD; boolean FindTextData (unsigned long IDCD); boolean FindPrevTextData (long n); boolean FindNextTextData (long n);}

Therefore, if an identification code that matches the identification code of the text data to be searched using the link tag is found in the file DVD_ENAV.IFO, the starting address of the item text is searched to retrieve the text data, or the previously found text data is recorded. The text data recorded before the nth time from the position may be retrieved or the text data recorded after the nth time may be retrieved.

6 is an example of a directory structure of a disc that does not support the interactive mode.

Referring to FIG. 6, a video directory VIDEO_TS including AV data is provided in the root directory. The VIDEO_TS is provided with a file VIDEO_TS.IFO in which playback control information for a video title recorded on a disc is recorded. In particular, an identifier for a disc or a video title is recorded in VIDEO_TS.IFO. Since the remaining data structure is the same as that described with reference to FIG. 4, repeated descriptions are omitted.

On the other hand, there is no interactive directory in which the information for supporting the interactive mode is stored in the root directory. That is, the reproduction control information file DVD_ENAV.IFO and the initial start markup document INDEX.XML are not stored.

7 is a reference diagram schematically illustrating a process of reproducing a disc that does not support the interactive mode in the interactive mode.

Referring to Fig. 7, when the user inserts a normal disc, the playback device plays the video title recorded on the disc in the video mode. As shown in (a), a blank screen in which nothing is displayed is changed to an AV screen in which the video title is played as shown in (b). When the user presses Content Info 50 provided in the remote controller 400, the playback apparatus downloads the playback control information file and markup document from the outside and recognizes that the DVD_ENAV.IFO and INDEX.XML files exist in the corresponding video title. Use this to play in interactive mode. The download order of the reproduction control information file and the markup document for interactive mode reproduction can be variously changed. Thus, as shown in (c), the AV screen and the markup document screen are displayed together in the interactive mode.

The following is an example of INDEX.XML read through the Internet.

<? xml version = "1.0"?><! DOCTYPE html PUBLIC-// DVD // DTD XHTML DVD-HTML 1.0 // EN "http://www.dvdforum.org/enav/dtd/dvdhtml-1-0 .dtd "><html><head><title> startup markup document </ title><link rel =" stylesheet "type =" text / css "href =" starwars.css "/><link rel =" dvd- xifo "type =" application / dvd-xifo "href =" http://www.hollywood.com/starwars2/dvd_enav.ifo "id =" xifo "/> </ head><body background =" url (dvd: ) "><script language =" ecmascript "><!-dvdVideo.Play();-></script></body></html>

In the source code above, <link rel = "dvd-xifo" type = "application / dvd-xifo" href = "http://www.hollywood.com/starwars2/dvd_enav.ifo" id = "xifo" /> It reads the DVD_ENAV.IFO file stored at the designated Universal Resource Locator (URL), that is, http://www.hollywood.com/starwars2/dvd_enav.ifo, and instructs to play the video title based on this.

Alternatively, a method of importing a reproduction control information file using the following API without using a link tag can also be implemented.

API for loading the playback control information file DVD_ENAV.IFO:

dvdVideo.Play ("dvd: //dvd_enav/dvd_enav.ifo");

dvdVideo.Play ("http://www.hollywood.com/starwars2/dvd_enav.ifo");

Furthermore, a disc author may intentionally <link rel = "dvd-xifo" type = "application into another markup document recorded on the disc 100 rather than the file DVD_ENAV.IFO in the disc's directory DVD_ENAV during authoring. By inserting into / dvd-xifo "href =" http://www.tristar.com/forest2003.ifo "/>, it is intentionally instructed to download and play the reproduction control information file from a specific URL.

This can be used for interactive mode playback in a manner provided by the producer server device every time. Furthermore, in anticipation of a new playback control structure to be produced after the disc 100 is produced, if the disc 100 contains a markup document containing link information of a new playback control information file in advance, the disc 100 may be used in the future. When the video title and the markup document are played together, a new markup document screen is embedded with an AV screen obtained by playing the video title based on the new playback control information file obtained through the link information contained in the disc 100. You can get the result.

8 is a reference diagram for briefly explaining a method of updating contents of a markup document screen.

Referring to FIG. 8, anchors 81, 82, 83, and 84 are disposed on a markup document screen displayed together with an AV screen. When the disc was created in March 2001, and the user selects 1999 big hits (81) or 2000 big hits (82), the contents are based on the DVD_ENAV.IFO file, the playback control information file recorded on the disc. Will play. However, at the time of disc production, it is not possible to create a reproduction control information file to be linked to big hits 83 in 2001 and big hits 2002. This is because the reproduction control structure to be used in the future is not known. In such a case, the disc author plays the video title based on the new playback control information file by creating only the anchors 83 and 84 in advance and inserting a new playback control information file into the server device of the URL. The AV screen embedded in the screen can be updated. Also, information indicating whether the playback control information file is a playback control information file created for playback control can be put in the control information file so that it can be judged whether the downloaded file is to be used for playback control or text data information. can do. That is, even if the user selects the corresponding anchors 83 and 84 until the file linked to the URL is determined to be the reproduction control information file, the user cannot see the newly created interactive mode screen and can only use it for reading text data. However, after the file recording the new playback control information instructing the playback control is put in the server device of the URL, the contents following the new playback control structure can be viewed.

The regeneration method according to the preferred embodiment of the present invention will be described based on the above configuration.

9 is a flowchart for explaining a playback method according to an embodiment of the present invention.

Referring to FIG. 9, when the user inserts the disc 100 into the disc deck provided in the playback apparatus 200, the presentation engine 5 needs information to play back in the interactive mode, that is, the playback control information file and markup. It is checked whether the document is recorded on the disc 100 (step 901). If a reproduction control information file and markup document are recorded (step 902), the reproduction control information file and markup document are read to reproduce the video title (step 903). If the reproduction control information file and markup document are not recorded, the network data transceiving unit 6 reads the corresponding reproduction control information file and markup document from the Internet and stores it in the cache memory 3 (step 904). As key values for reading the reproduction control information file and the markup document for the specific video title, an identifier for the disc or video title recorded on the disc 100 is used. The presentation engine 5 uses the playback control information file and markup document stored in the cache memory 3 to reproduce the video title in the interactive mode (step 905).

10 is a flowchart for explaining a playback method according to another preferred embodiment of the present invention.

Referring to FIG. 10, a user inserts an interactive DVD or a conventional DVD-Video into a playback device (step 1001). The playback apparatus checks whether the inserted disc is an interactive DVD or a conventional DVD-Video (step 1002). In the case of an interactive DVD (step 1003), information for playing in the interactive mode, that is, a playback control information file DVD_ENAV.IFO and an initial start markup document, INDEX.XML, is read from the disc and the corresponding video title is played in the interactive mode. (Step 1004). If it is a conventional DVD-Video (step 1003) and playback is not required in the interactive mode (step 1005), the video title is played in the video mode (step 1006).

Although it is a conventional DVD-Video (step 1003), if playback is required in interactive mode (for example, when the user presses Content Info 50 provided in the remote controller 400) (step 1005), the playback device transmits and receives network data. In step 1007, the predetermined markup document is read by connecting to the predetermined interactive server apparatus via the Internet through the unit 6. In the read markup document, client executable code for recognizing an identifier of a DVD-Video inserted into a playback device or an identifier (eg, ISRC code) of a video title to be played by a user is recorded. Client executable code is source code in a scripting language. However, the client executable code may be written in another program language that can be executed in the presentation engine 5. The identifier of the DVD-Video or the identifier of the video title is recorded in VIDEO_TS.IFO in this embodiment. The client executable code is executed in the presentation engine 5 to read the identifier of the DVD-Video or the identifier of the video title, and the network data transceiver 6 transmits it to the interactive server device (step 1008). The interactive server apparatus transmits a markup document having a function similar to INDEX.XML, which is a markup document capable of downloading a new reproduction control information file corresponding to the received identifier, to the network data transmitting and receiving unit 6 (step 1009). . In the received markup document, the corresponding playback control information file is linked through a link tag or executable code using an API for downloading the corresponding playback control information file is inserted. The reproduction control information file is downloaded and reproduced using it. At this time, information indicating that the reproduction control information file has been created for reproduction control purposes should be recorded in the downloaded reproduction control information file (step 1010). On the other hand, the reproduction control information file may specify the URL information indicating the position of a new markup document required for reproducing the video title in the interactive mode, that is, the position of INDEX.XML which is the first start markup document. The presentation engine 5 receives the markup document necessary to interpret the downloaded reproduction control information file and reproduce it in the new interactive mode, and reproduces it in the interactive mode with the corresponding video title (step 1011). Steps 1007 and 1008 may be executed in one step, and then steps 1009 may be executed. For example, when the network data transmission / reception unit 6 transmits a disc identifier or a video title identifier to the interactive server device, the interactive server device immediately responds to the markup document to download the corresponding playback control information file to the playback device. It can be implemented by transmitting.

Meanwhile, in the above-described embodiment, the video title has been described as an example of the content recorded on the disc, but it can be applied to various contents such as an audio title and an e-book.

As described above, according to the present invention, even when information necessary for reproduction in the interactive mode is not recorded on the disc, the corresponding content can be reproduced in the interactive mode. In particular, by modifying and updating the reproduction control information file and the markup document stored in the server device, the content producer can provide the user with updated updated information and allow the content to be reproduced in a new form. Further, by storing link information for a new playback control information file in the future in advance, the content contained in the disk can be played based on the new playback control information file. Accordingly, the content of the interactive screen can be updated.

Claims (32)

In the method for playing back the content recorded on the information storage medium in the interactive mode, (a) receiving information necessary for playing the content in an interactive mode from the Internet or reading from the information storage medium; And (b) playing the content in an interactive mode based on the received or read information. The method of claim 1, Step (a) is (a1) checking whether information for reproducing in the interactive mode is recorded on the information storage medium; And (a2) a playback method comprising requesting and receiving the information from a predetermined server device if it is not recorded. The method of claim 2, wherein step (a2) (a21) transmitting the identifier of the content to the server device; And and (a22) receiving at least one of a reproduction control information file and a markup document corresponding to the identifier from the server apparatus. The method of claim 3, The information storage medium stores a markup document containing information intentionally instructing to download and play a playback control information file from the server device, thereby updating the interactive screen whenever a new playback control information file is updated on the server device. Playback method characterized in that. The method of claim 4, wherein In anticipation of a new playback control structure to be produced after the information storage medium is produced, a markup document containing link information of a new playback control information file is stored in advance at the time of producing the information storage medium. Playback results in a new interactive screen being played back. A method for playing a video title recorded on a disc in an interactive mode, the method comprising: (a) requesting and receiving information necessary for playing the video title in the interactive mode to a predetermined server device through the Internet; And (b) playing the video title in an interactive mode based on the received information. The method of claim 6, wherein step (a) (a1) requesting and receiving a reproduction control information file and a markup document required for reproducing the video title in the interactive mode. The method of claim 7, wherein step (a1) (a11) transmitting an identifier of the video title to the server device; And (a12) receiving a reproduction control information file and markup document corresponding to the identifier. The method of claim 8, wherein step (a11) And receiving a markup document in which the client executable code for recognizing the identifier of the video title is recorded from the server apparatus. The method of claim 9, wherein step (a12) (a121) receiving a markup document for downloading the reproduction control information file; And (a122) A playback method comprising the step of receiving a playback control information file linked to the markup document received in step (a121). The execution code of claim 10, wherein the markup document of step (a121) includes a link tag linked to the reproduction control information file or calls an application program interface (API) for importing the reproduction control information file. The playback method characterized in that the insertion. 12. The reproduction method according to claim 11, wherein text data is retrieved using the link tag. The method of claim 12, wherein the link tag is used to retrieve corresponding text data that matches the identification code of the text data to be searched or to retrieve the text data recorded before the nth time from the position at which the text data was previously searched. Or a text data recorded after the nth time. 12. The reproduction method according to claim 11, wherein instruction information indicating that the reproduction control information file is for reproduction control purposes is inserted in the reproduction control information file. The reproduction method according to claim 14, wherein it is determined whether to use the reproduction control information file downloaded by the indication information for reproduction control or as text data information. 15. The reproduction method according to claim 14, wherein the downloaded reproduction control information file is used only for reading text data until the reproduction control information file downloaded by the indication information is determined to be for reproduction control. In the device for playing back the content recorded on the information storage medium in the interactive mode, A reader for reading the content; A decoder for decoding the read content; And Network data transmission and reception unit for receiving information necessary for playing the content in the interactive mode from the outside through the Internet, And reproducing the content in the interactive mode using information necessary for reproducing in the interactive mode read from the information storage medium or received by the network data transceiver. The method of claim 17, Information necessary for reproduction in the interactive mode includes a reproduction control information file for reproducing the content and a markup document for display with the content, A presentation engine for analyzing and executing or reproducing the reproduction control information file and the markup document; And And a blender for blending the decoded content and the reproduced markup document. The method of claim 17, The network data transceiver transmits the identifier of the content to a server device, characterized in that for receiving interactive content corresponding to the identifier from the server device. 20. The apparatus of claim 19, wherein the information storage medium stores a markup document containing information intentionally instructing download and playback of a reproduction control information file from the predetermined server device so that a new reproduction control information file is updated in the server device. Device for updating the contents of the interactive screen each time. 21. The apparatus according to claim 20, wherein a markup document containing link information of a new playback control information file is stored in advance in the future when the information storage medium is produced in anticipation of a new playback control structure to be produced after the information storage medium is produced. And a new interactive screen is reproduced when the title and markup document are played together. An apparatus for playing a video title recorded on a disc in an interactive mode, A network data transmission / reception unit for requesting and receiving information necessary for playing the video title in an interactive mode to a predetermined server device through the Internet; And play the video title in an interactive mode based on the received information. The method of claim 22, And the network data transmitting / receiving unit requests and receives a reproduction control information file and a markup document required for reproducing the video title in the interactive mode. The method of claim 22, And the network data transceiver transmits an identifier of the video title to the server apparatus, and receives a reproduction control information file and a markup document corresponding to the identifier. The method of claim 22, And the network data transmitting / receiving unit receives a markup document in which a client execution code for recognizing an identifier of the video title is recorded from the server device. The method of claim 25, The network data transceiving unit receives a markup document for downloading the reproduction control information file, receives a reproduction control information file linked to the received markup document, and the received reproduction control information file includes the initial start markup document. Is set. The method of claim 26, The markup document is inserted with a link tag linked to the reproduction control information file or executable code for calling an application program interface (API) for importing the reproduction control information file. 29. The apparatus of claim 27, wherein text data is retrieved using the link tag. 29. The method of claim 28, wherein the link tag is used to retrieve corresponding text data that matches the identification code of the text data to be searched, or to retrieve the text data recorded before the nth time from the position at which the text data was previously searched. Or retrieve the text data recorded after the nth time. 28. The apparatus according to claim 27, wherein instruction information indicating that the playback control information file is for playback control purposes is inserted in the playback control information file. The apparatus according to claim 30, wherein it is determined whether to use a reproduction control information file downloaded by the indication information for reproduction control or as text data information. 32. The apparatus of claim 31, wherein the reproduction control information file is used only for reading text data until the reproduction control information file downloaded by the indication information is determined to be for reproduction control.