Patent ID: 7082257
Filing Date: 2006-07-25
Classification: F02B,G11B,H04N,Y02T

Abstract:
1. A disc reproduction apparatus and optical disc system, the optical disc comprising: a title area with a plurality of video titles and a manager area, each video title includes route information and a plurality of pieces of video information retrieved according to the route information, die manager area includes an address management information for storing plurality of pieces of address management information, each of which includes an address of one of the plurality of video titles; and reproduction information for indicating a status of each of the video titles relative to enabling a variable sequence of reproduction by the disc reproduction apparatus; and the disc reproduction apparatus comprising: an optical disc pickup for optically reading data from the optical disc; a drive mechanism for driving the optical pickup; first controlling means for controlling the drive mechanism to have the optical pickup read data from the manager area; a manager buffer for storing the data read by the first controlling means; receiving means for receiving a video title selected by an operator to be reproduced; calculating means for calculating an address of the video title selected by the operator by referring to the manager buffer; second controlling means for controlling the drive mechanism to move the optical pickup and to have the video title read from a position specified by the address calculated by the calculating means; judging means for judging whether a variable sequence of reproduction can be executed in the video title read by the second controlling means by referring to the reproduction information corresponding to the video title; and a user executing means for executing a user selected variable reproduction sequence of the pieces of video information only when the judging means judges that such a user selection can be used in the video title.