Patent ID: 6636474
Filing Date: 2003-10-21
Classification: G11B

Abstract:
A digital signal recording disc comprising:a first area (AOTT) storing at least first and second channel digital audio signals of a plurality of channels of audio data, wherein said plurality of channels are divided into first and second channel groups (Groups 1, 2), and the first channel digital audio signal included in the first channel group comprises a front channel digital audio signal (Lf, Rf) and the second channel digital audio signal (Ls, Rs) included in the second channel group comprises a rear channel digital audio signal; and a second area (ATSI) differing from the first area and storing information of first and second parameters respectively relating to the first and second channel digital audio signals (Q1, Q2), the first parameter comprising at least one item selected from the group comprising; quantization bit numbers of the first and second group channel digital audio signals (fs1, fs2); and sampling frequencies of the first and second channel group digital audio signals; and the second parameter comprising assignment of the first and second channel digital audio signals to said first and second channel groups (CHANNEL ASSIGNMENT).