Patent ID: 7248787

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 audio data of the video objects (VOBS) in the video title set (VTS< 1 >) and having a second audio title set (ATS< 2 >) including audio data (ACBS) including a multi-channel audio signal, where the audio data have a down-mix mode information for assigning whether or not inhibiting down-mix stereo output from the multi-channel audio signal; and a second managing area (AMG) including information (AMGI) for managing the first and second audio title sets and managing the audio data of the video objects in the video title set.