Patent ID: 7631334

Claim:
An information processing device adapted to be connected to other information processing devices by way of a network, comprising: a function execution means for executing a predetermined function, the function execution means having a schedule of operation; a storage means for storing a first piece of information on the schedule of operation of the function execution means; an acquisition means for acquiring a second piece of information on the schedule of operation of the function execution means not contained in the previously stored first piece of information, wherein the second piece of information includes information associated with a recording reservation of the devices in the network; a control means for putting the second piece of information into a predetermined block format and storing it in the storage means as additional information to the first piece of information; and a display means for displaying a warning indicating double booking of recording reservations to a user and displaying a cause of the double booking, regardless of whether the cause of double booking is located on the information processing device or on any other remaining processing device in the same network; the control means being for cancelling the recording reservation when a double booking occurs and the recording reservation is a preliminary reservation, wherein an entry of the recording reservation as the preliminary reservation provides notice at time of the entry that the recording reservation may be cancelled to record a subsequent reservation.