RECORDING / REPRODUCING APPARATUS, PROGRAM RECORDED MEDIUM, RECORDED MEDIUM, CACHE DEVICE, AND TRANSMITTER

摘要

A recording / reproducing apparatus comprising input means for receiving packet data based on the IEEE 1394 and held in a header of a packet based on the IEEE 1394 and containing signal information (hereinafter referred to EMI) on signals representing AV data use license information and recording/reproducing means for recording/reproducing AV data and EMI contained in packet data received by the input means, wherein there are four types of EMI, the recording/reproducing means rewrites the EMI to information of which no more copy is allowed and records the AV data representative of permission that copying one generation is allowed.