Patent ID: 8824683

Claim:
A non-transitory computer readable recording medium used for transferring authoring data between a plurality of sites including an authoring site and a mastering site, wherein: the authoring data has a directory structure in which a movie directory and a copyright protection directory are located below a root directory, at least three sub-directories are located below the movie directory, and the at least three sub-directories are a stream directory, a stream information directory, and a playlist information directory, the authoring data includes a content, and the content included in the authoring data includes: a movie object and an index table that are stored in the movie directory; an audio/video stream that is stored in the stream directory; stream information that is stored in the stream information directory; and playlist information that is stored in the playlist information directory, and the copyright protection directory stores a content key for encrypting the content, a hash value of the content, a media key for encrypting the content key, and revocation information for revoking an unauthorized device from using the media key, the authoring data has a plurality of formats, the plurality of formats include a first format and a second format, in the first format, the content is not encrypted, and each of the content key, the hash value, the media key, the revocation information is dummy data, and in the second format, the content is encrypted and each of the media key and the revocation information is dummy data, and each of the content key, the hash value, the media key, the revocation information being dummy data is equal in size to a corresponding one of the content key, the hash value, the media key, the revocation information, so that a total size of the authoring data in the first format is equal to a total size of the authoring data in the second format.