Patent ID: 7974163

Claim:
An optical disk device comprising: read means which reads, from an optical disk, audio and video data and a first address of a sector currently being read, the optical disk containing audio and video data recorded at a variable bit rate for each sector and having storage positions of the sectors specified by addresses; a buffer memory which sequentially stores the audio and video data read by the read means; replay means which sequentially reads out and decodes the audio and video data stored in the buffer memory, and replays the audio and video data; actuation means which receives a command for special replay which differs in replay speed from standard replay by the replay means and a designation of replay speed for the special replay; and control means which, when the command for the special replay is issued by the actuation means during standard replay, the control means calculates a second address of the sector currently being decoded by the replay means, based upon the first address and upon the amount of data stored in the buffer memory; wherein the control means: calculates a third address positioned a jump over time period forward from the second address, based upon the second address and upon the jump over time period which corresponds to the replay speed for the special replay designated by the actuation means; and commands the read means to read out from the optical disk a sector to be jumped to which is at the third address.