Patent ID: 7792416

Claim:
An audio disc having a data structure comprising: a video title set (VTS<1>) including video objects (VOBS) and audio data of the video objects; a first managing area (VMG) including information (VMGI) for managing the video title set (VTS<1>); a first audio title set (ATS<1>) including reference information for access to the audio data of the video objects (VOBS) in the video title set (VTS<1>); a second audio title set (ATS<2>) including both audio data (ACBS) having a multi-channel audio signal and audio information (ATSI) for managing the second audio title set (ATS<2>), wherein the audio information (ATSI) has both down-mix mode information (D-M) for assigning whether or not to inhibit down-mix stereo output from the multi-channel audio signal and a down-mix coefficient (ATS-DM-COEFT); and a second managing area (AMG) including information (AMGI) for managing the first and second audio title sets and the video title set (VTS<1>) and managing the video objects (VOBS) and the audio data of the video objects in the video title set (VTS<1>).