an input signal is quantized into a quantization - resultant signal . the quantization - resultant signal is compressed into a compression - resultant signal . the compression - resultant signal is formatted into a formatting - resultant signal corresponding to a predetermined format for a digital recording disc . the formatting - resultant signal includes segments corresponding to user data areas prescribed in the predetermined format . the compression - resultant signal is placed in the segments of the formatting - resultant signal . the formatting - resultant signal is encoded into an encoding - resultant signal of a cd format . the encoding - resultant signal is recorded on a recording medium .