Patent ID: 7284128

Claim:
A recording method for a record medium, comprising the steps of: adding a first watermark to an input information signal, the first watermark being added when the information signal is transmitted as an analog signal; converting the information signal to which the first watermark has been added into a digital signal; adding a second watermark to the converted digital signal, the second watermark being added when the information signal is transmitted as a digital signal; performing an encoding process for the signal to which the second watermark has been added; and recording the signal for which the encoding process has been performed to the record medium; wherein the information signal is music data and the first and second watermarks each contain copyright information including at least a performer name, a record company name, a copy permission, and a generation restriction; wherein the first watermark has been embedded in a frequency band other than an audible frequency band of the information signal and the second watermark has been embedded in a low order bit of the converted digital signal.