Patent ID: 7398011

Claim:
A method of reproducing data from a digital signal recording disc having a first area (ATS D) storing an audio title set (ATS) containing digital audio signals of a plurality of channels divided into first and second channel groups (Group 1 , 2 ); the audio title set (ATS) including an audio title set information (ATSI) containing first and second parameters relating to the digital audio signals, the first parameter comprising a sampling frequency (fs 1 ) of the digital audio signal or signals of the channel or channels in the first channel group and a sampling frequency (f 2 ) of the digital audio signal or signals of the channel or channels in the second channel group; the second parameter (CHANNEL ASSIGNMENT) comprising assignment of the digital audio signals to said first and second channel groups; the digital signal recording disc being void of a second area (VTS D) storing a video title set (VTS); and the first area also storing an audio manager (AMG) containing data for controlling the digital audio signals, the method comprising the steps of: reading the first parameter and the second parameter (CHANNEL ASSIGNMENT) from the first area (ATS D) of the disc; reading the digital audio signals from the first area (ATS D) of the disc; decoding the read digital audio signals into a decoded digital audio signal or signals of the channel or channels in the first channel group and a decoded digital audio signal or signals of the channel or channels in the second channel group in response to the read second parameter (CHANNEL ASSIGNMENT); implementing digital-to-analog conversion of the decoded digital audio signal or signals of the channel or channels in the first channel group in response to the sampling frequency (fs 1 ) in the read first parameter; and implementing digital-to-analog conversion of the decoded digital audio signal or signals of the channel or channels in the second channel group in response to the sampling frequency (fs 2 ) in the read first parameter.