A content transmission system having a content sending apparatus for sending content and a content reception apparatus for receiving content sent by said content sending apparatus, wherein: said content sending apparatus (21,31) includes a metadata attaching unit configured to attach metadata of said content to said content, an execution processing insertion unit configured to insert a description, associated with processing to be executed by said content reception apparatus after reception of said content by said content reception apparatus has been completed, into metadata to be attached to said content, and a data sending unit configured to send, to said content reception apparatus, said content attached with said metadata with said description inserted by said execution processing insertion unit, and said content reception apparatus includes a data reception unit configured to receive said said content attached with said metadata, a metadata analysis unit configured to analyze said metadata received by said data reception unit, and a processing execution unit configured to execute processing of a command to be executed on said content after completion of reception of said content on the basis of a result of identifying by a processing identification unit said command to be executed wherein said execute processing of said command comprises identifying by the processing identification unit said command to be executed after completion of reception of said content on the basis of a result of the analysis by said metadata analysis unit, and wherein said execute processing of said command further comprises at least one of copying and moving data of the received content to a recording media predetermined by said received metadata. said content sending apparatus (21,31) includes a metadata attaching unit configured to attach metadata of said content to said content, an execution processing insertion unit configured to insert a description, associated with processing to be executed by said content reception apparatus after reception of said content by said content reception apparatus has been completed, into metadata to be attached to said content, and a data sending unit configured to send, to said content reception apparatus, said content attached with said metadata with said description inserted by said execution processing insertion unit, and a metadata attaching unit configured to attach metadata of said content to said content, an execution processing insertion unit configured to insert a description, associated with processing to be executed by said content reception apparatus after reception of said content by said content reception apparatus has been completed, into metadata to be attached to said content, and a data sending unit configured to send, to said content reception apparatus, said content attached with said metadata with said description inserted by said execution processing insertion unit, and said content reception apparatus includes a data reception unit configured to receive said said content attached with said metadata, a metadata analysis unit configured to analyze said metadata received by said data reception unit, and a processing execution unit configured to execute processing of a command to be executed on said content after completion of reception of said content on the basis of a result of identifying by a processing identification unit said command to be executed a data reception unit configured to receive said said content attached with said metadata, a metadata analysis unit configured to analyze said metadata received by said data reception unit, and a processing execution unit configured to execute processing of a command to be executed on said content after completion of reception of said content on the basis of a result of identifying by a processing identification unit said command to be executed