INFORMATION RECORDING AND REPRODUCING DEVICE, METHOD THEREFOR AND PROVIDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a high-quality musical signal regardlessly of supperposed positions of an advertisement voice. SOLUTION: The ciphered pure musical signal and the unciphered advertisement voice signal inputted with a transmission medium 31 are separated from each other in a signal stream separating part 211. A signal converting and composing part 212 decodes the ciphered pure musical signal, composes it with the advertisement voice signal and outputs a composite signal composed of the musical signal and the advertisement voice to a code train composing part 213. The part 213 composes the ciphered pure musical signal and the composite signal of the musical signal and the advertisement voice signal, and the composite signal is recorded on a magneto-optical disk via a recording part 34.