Patent ID: 7805677

Claim:
An information recording medium on which there are recorded: an object data file storing a first stream including video information or still picture information and a second stream including a plurality of menu information each of which is displayed in response to a user operation and can select a reproduction point of the first stream or a change of reproduction condition of the first stream in response to the user operation; and a play list information storing a plurality of item information each of which specifies the first stream by a unit of an item and a plurality of sub item information each of which specifies the second stream by a unit of a sub item, wherein (i) the item is one portion of the video information or the still picture information included in the first stream, (ii) the sub item is one portion of the menu information included in the second steam, and iii) the item information and the sub item information are control information which is used to reproduce the first and second streams, the plurality of item information and the plurality of sub item information being recorded in the play list information independently and separately from each other, the object data file and the play list information being recorded on the information recording medium independently and separately from each other, one menu information of the plurality of menu information specified by the sub item information being superimposed on a display of the first stream during a reproduction of the first stream specified by the item information, the first stream and the second stream being recorded such that the reproduction of the video information or the still picture information included in the first stream which is reproduced before the display of the one menu information is continued, by controlling the first stream and the second stream independently and separately, during the one menu information is superimposed.