Patent ID: 7194196

Claim:
A DVD information record medium having an audio zone and a video zone encoded with information, the information comprising: substantial information including video information and audio information which are related to each other; first reproduction control information to reproduce the video information and audio information out of the substantial information only for a first reproducing apparatus with video and audio reproduction ability; first management information only for the first reproducing apparatus; second reproduction control information to reproduce only the audio information out of the substantial information only for a second reproducing apparatus that is able to reproduce audio, but is not able to reproduce video; and second management information only for the second reproducing apparatus, wherein the substantial information, the first reproduction control information, and the first management information are recorded in the video zone, and the second reproduction control information and the second management information are recorded in the audio zone, and wherein the first reproduction control information is Video Title Set Information (VTSI), the first management information is Video Manager (VMG) information, the second reproduction control information is Audio Title Set Information (ATSI), and the second management information is Audio Manager (AMG) information.