Patent ID: 7457526

Claim:
A recording/reproducing apparatus for recording and reproducing a digital signal onto first and second recording media, comprising: an input/output portion through which a control signal and the digital signal for recording and reproducing are inputted and outputted; a controller for performing two kinds of controlling based on one kind of control signal inputted at said input/output portion, wherein the two kinds of controlling are different from each other and correspond to said first and said second recording media, respectively; a first encryptor/decryptor for encrypting and decrypting the digital signal inputted/outputted at said input/output portion; a second encryptor/decryptor for encrypting and decrypting the digital signal to be recorded and reproduced onto/from said first recording medium; a third encryptor/decryptor for encrypting and decrypting the digital signal to be recorded and reproduced onto/from said second recording medium; a memory for temporarily storing the digital signal; and an arbitrator for arbitrating write-in and read-out of the digital signal among said first and second recording media, said first, second and third encryptor/decryptor, and said memory, in a time-sharing manner.