Method for configuring composite file structure for data reproduction, and method and apparatus for reproducing data using the composite file structure

Abstract

A method and apparatus for reproducing data is disclosed. The method and apparatus configures a composite file structure to simultaneously reproduce data recorded in a recording medium and other data recorded in a local storage, and reproduces data using the configured composite file structure. A variety of methods for configuring the composite file structure are described in preferred embodiments, such that a method for effectively configuring the composite file structure regardless of a current condition state is given. Therefore, data recorded in the recording medium and other data stored in the local storage can be effectively used.

1 . A method for configuring a composite file structure for data reproduction, wherein the composite file structure manages main data recorded in a recording medium and sub data stored in a local storage while being associated with the main data, the method comprising: 
 adding a downloaded clip information file and a downloaded stream file to the composite file structure respectively.    
   
   
       2 . The method according to  claim 1 , wherein the composite file structure comprises: 
 a playlist directory including a playlist file;    a clip information directory including the clip information file;    a stream directory including the stream file; and    an auxiliary directory including an additional data.    
   
   
       3 . The method according to  claim 2 , wherein the playlist file includes at least one playitem for reproducing the main data, and at least one playitem for reproducing the sub data.  
   
   
       4 . The method according to  claim 1 , wherein the main data includes at least one main title composed of an audio-video (AV) stream wherein video data, audio data, and graphic data are multiplexed.  
   
   
       5 . The method according to  claim 1 , wherein the sub data includes an audio-video (AV) stream wherein video data, audio data, and graphic data are multiplexed, and includes an auxiliary (Aux) title associated with the main title.  
   
   
       6 . The method according to  claim 5 , wherein the auxiliary (Aux) title substitutes for all parts of the main title.  
   
   
       7 . The method according to  claim 5 , wherein the auxiliary (Aux) title is a title newly added to the main title.  
   
   
       8 . A method for configuring a composite file structure for data reproduction, wherein the composite file structure manages main data recorded in a recording medium and sub data stored in a local storage while being associated with the main data, the method comprising: 
 substituting a clip information file and a stream file recorded in the recording medium with a downloaded clip information file and a downloaded stream file respectively.    
   
   
       9 . A method for reproducing data, comprising the steps of: 
 recognizing identification (ID) information of a recording medium in which main data is recorded, and determining whether sub data having the same ID as that of the recording medium is present in a local storage;    configuring a composite file structure for reproducing the main data and the sub data; and    reproducing the main data and the sub data using the configured composite file structure,    wherein the step of configuring the composite file structure includes adding a downloaded clip information file and a downloaded stream file to the composite file structure respectively.    
   
   
       10 . The method according to  claim 9 , wherein the composite file structure comprises: 
 a playlist directory including a playlist file;    a clip information directory including the clip information file;    a stream directory including the stream file; and    an auxiliary directory including an additional data.    
   
   
       11 . The method according to  claim 10 , wherein the playlist file includes at least one playitem for reproducing the main data, and at least one playitem for reproducing the sub data.  
   
   
       12 . The method according to  claim 9 , wherein the main data includes at least one main title composed of an audio-video (AV) stream wherein video data, audio data, and graphic data are multiplexed.  
   
   
       13 . The method according to  claim 9 , wherein the sub data includes an audio-video (AV) stream wherein video data, audio data, and graphic data are multiplexed, and includes an auxiliary (Aux) title associated with the main title.  
   
   
       14 . The method according to  claim 13 , wherein the auxiliary (Aux) title substitutes for all parts of the main title.  
   
   
       15 . The method according to  claim 9 , wherein the auxiliary (Aux) title is a title newly added to the main title.  
   
   
       16 . A method for reproducing data, comprising the steps of: 
 recognizing identification (ID) information of a recording medium in which main data is recorded, and determining whether sub data having the same ID as that of the recording medium is present in a local storage;    configuring a composite file structure for reproducing the main data and the sub data; and    reproducing the main data and the sub data using the configured composite file structure,    wherein the step of configuring the composite file structure includes substituting a clip information file and a stream file recorded in the recording medium with a downloaded clip information file and a downloaded stream file respectively.    
   
   
       17 . An apparatus for reproducing data, comprising: 
 a pickup unit for reading main data from a recording medium;    a local storage for storing sub data associated with the main data;    a decoder for decoding the main data and the sub data; and    a controller for configuring a composite file structure, and controlling a decoding process of the decoder using the composite file structure,    wherein the controller adds a downloaded clip information file and a downloaded stream file to the composite file structure respectively.    
   
   
       18 . An apparatus for reproducing data, comprising: 
 a pickup unit for reading main data from a recording medium;    a local storage for storing sub data associated with the main data;    a decoder for decoding the main data and the sub data; and    a controller for configuring a composite file structure, and controlling a decoding process of the decoder using the composite file structure,    wherein the controller substitutes a clip information file and a stream file recorded in the recording medium with a downloaded clip information file and a downloaded stream file respectively.