Recording apparatus, recording method, recording medium, and program for recording information protecting intangible property right

Abstract

A recording apparatus according to the present invention comprises converting means 15, 18, and 19 and recording means 23, 24, 32, and 33. The converting means 15, 18, and 19 convert the data structure of data into a file structure handled by software. The recording means 23, 24, 32, and 33 record data on a record medium. The file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion describing management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units. The data portion contains security information for protecting intangible property rights of data.

1 . A recording apparatus that records data to a rewritable record medium, comprising: 
 converting means for converting a data structure of the data into a file structure that can be handled by software; and    recording means for recording data that has been converted into the file structure to the record medium,    wherein the file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion that describes management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units, and    wherein the data portion contains security information necessary for protecting an intangible property right entitled to the first data unit.    
     
     
         2 . The recording apparatus as set forth in  claim 1 , 
 wherein the security information is contained in an independent file instead of the data portion, and    wherein the data portion contains designation information that designates the file.    
     
     
         3 . The recording apparatus as set forth in  claim 1 , 
 wherein the entity data is encrypted corresponding to a predetermined encrypting method, and    wherein the security information is a key necessary for decrypting the encrypted entity data.    
     
     
         4 . The recording apparatus as set forth in  claim 3 , 
 wherein the key is encrypted corresponding to a predetermined encrypting method, and    wherein the data portion further contains a key necessary for decrypting the encrypted key.    
     
     
         5 . The recording apparatus as set forth in  claim 3 , 
 wherein the key is encrypted corresponding to a predetermined method, and    wherein the recording means further records a file that contains a key necessary for decrypting an encrypted key to the record medium.    
     
     
         6 . The recording apparatus as set forth in  claim 1 , 
 wherein the security information contains at least one of a start time at which the use of the entity data is started and an end time at which the use of the entity data is stopped.    
     
     
         7 . The recording apparatus as set forth in  claim 1 , 
 wherein the security information is number-of-times restriction information for restricting the number of times of which the entity data can be reproduced.    
     
     
         8 . The recording apparatus as set forth in  claim 1 , 
 wherein the security information is copy restriction information for restricting the number of times of which the entity data can be copied.    
     
     
         9 . The recording apparatus as set forth in  claim 1 , 
 wherein the security information is copy identification information for identifying whether the entity data is original entity data or copied entity data.    
     
     
         10 . The recording apparatus as set forth in  claim 1 , 
 wherein the data portion further contains falsification identification information for identifying whether or not the security information has been falsified.    
     
     
         11 . A recording method for recording data to a rewritable record medium, comprising the steps of: 
 converting a data structure of the data into a file structure that can be handled by software; and    recording data that has been converted into the file structure to the record medium,    wherein the file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion that describes management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units, and    wherein the data portion contains security information necessary for protecting an intangible property right entitled to the first data unit.    
     
     
         12 . A record medium on which entity data is recorded that has been converted into a file structure that can be handled by software, 
 wherein the file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion that describes management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units, and    wherein the data portion contains security information necessary for protecting an intangible property right entitled to the first data unit.    
     
     
         13 . The record medium as set forth in  claim 12 , 
 wherein the-security information is contained in an independent file instead of the data portion, and    wherein the data portion contains designation information that designates the file.    
     
     
         14 . The record medium as set forth in  claim 12 , 
 wherein the entity data is encrypted corresponding to a predetermined encrypting method, and    wherein the security information is a key necessary for decrypting the encrypted entity data.    
     
     
         15 . The record medium as set forth in  claim 12 , 
 wherein the key is encrypted corresponding to a predetermined encrypting method, and    wherein the data portion further contains a key necessary for decrypting the encrypted key.    
     
     
         16 . The record medium as set forth in  claim 12 , 
 wherein the security information contains at least one of a start time at which the use of the entity data is started and an end time at which the use of the entity data is stopped.    
     
     
         17 . The record medium as set forth in  claim 12 , 
 wherein the security information is number-of-times restriction information for restricting the number of times of which the entity data can be reproduced.    
     
     
         18 . The record medium as set forth in  claim 12 , 
 wherein the security information is copy restriction information for restricting the number of times of which the entity data can be copied.    
     
     
         19 . The record medium as set forth in  claim 12 , 
 wherein the security information is copy identification information for identifying whether the entity data is original entity data or copied entity data.    
     
     
         20 . The record medium as set forth in  claim 12 , 
 wherein the data portion further contains falsification identification information for identifying whether or not the security information has been falsified.    
     
     
         21 . A program recorded on a data rewritable record medium, the program causing a computer to performs steps of: 
 converting a data structure of the data into a file structure that can be handled by software; and    recording data that has been converted into the file structure to the record medium,    wherein the file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion that describes management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units, and    wherein the data portion contains security information necessary for protecting an intangible property right entitled to the first data unit.    
     
     
         22 . A recording apparatus that records video data to a rewritable record medium, comprising: 
 converting means for converting a data structure of individual video data that composes a moving picture into a file structure that can be handled by software for reproducing a moving picture; and    recording means for recording individual data that has been converted into the file structure to the record medium,    wherein the file structure has a first video data unit as entity data, a second video data unit as a set of a plurality of first video data units, and a data portion that describes management information for managing the relation of the plurality of first video data units and attributes of entity data of the first video data units, and    wherein the data portion contains security information necessary for protecting an intangible property right entitled to the first video data unit.