Abstract: A receiving terminal includes a data acquiring unit which acquires from the content server information that is required for the export of the content and that includes information about a capability required for the receiving terminal and information about a capability required for the removable medium. A propriety judgment unit compares the information about the capability required for the receiving terminal with information about a capability the receiving terminal possesses, compares the information about the capability required for the removable medium with information about a capability the removable medium possesses, and judges whether or not the export processing of the content can be performed. A control unit makes a processing relevant to a purchase of the content or to the export of the content perform, according to a judgment result by the propriety judgment unit.

Abstract: A receiving terminal comprises a data acquiring unit which acquires from the content server information that is required for the export of the content and that includes information about a capability required for the receiving terminal and information about a capability required for the removable medium, a propriety judgment unit which compares the information about the capability required for the receiving terminal with information about a capability the receiving terminal possesses, compares the information about the capability required for the removable medium with information about a capability the removable medium possesses, and judges whether the export processing of the content can be performed or not, and a control unit which makes a processing relevant to a purchase of the content or to the export of the content perform, according to a judgment result by the propriety judgment unit.

Abstract: In a service enabling viewing of a rental content time-limit-managed by a copyright protection system (DRM) for a certain time period from first-time viewing in a video download service through a network, even possible viewing times for the content under the one and another copyright protection systems when the content is exported to a removable medium in conformity with the other system (CPS) before first-time viewing under DRM management are synchronized. When a content time-limit-managed by a copyright protection system is exported to a removable recording medium in conformity with a different content protection system, a URL for a management server is designated and a request is made of the designated management server to fix a possible viewing time if the URL of the management server is designated when the content is viewed for the first time in a content reproducer in conformity with the content protection system.

Abstract: A method and apparatus for recording/reproducing video signals on or from storage media. A video signal is divided into k video blocks in a time-axis direction, wherein k is an integer not less than 2, finding a block skip interval s which is an integer satisfying an equation s=(pk+1)/n when p is an integer not less than 1 and n is an integer not less than 2. The k video blocks are interleaved in order ofi= s(j-1)}mod k+wherein i is an integer satisfying a relation 1.ltoreq.i.ltoreq.k and representing a block number of the video signal, and j is an integer satisfying a relation 1.ltoreq.j.ltoreq.k and representing an allocation block number on a storage medium (FIGS. 2(A) and 2(B)). And, thus interleaved video blocks are allocated on the storage medium (312).