AV information processing unit and information recording medium, in which AV informaiton processing program is recorded so as to be capable of being read by computer

An information recording medium, in which an AV information processing program is recorded so as to be capable of being read by a computer, for making said computer function as:

• an AV information accumulating device for accumulating the AV information, which includes any one of audio information, video information and data information associated with at least any one of the audio information and the video information;
• plural performing devices for performing partial information processing, which is a part of information processing required to be performed from the outside, by using said accumulated AV information and performing each of said partial information processings, which are different each other, separately;
• and
• a shifting device for shifting at least a portion of utility information from said performing device, which has performed one partial information processing, to said performing device for performing other partial information processing, so that at least a portion of the utility information used to perform said one partial information processing can be used to perform said other partial information processing.