Information processing method, information processing system and information processing apparatus

An information processing system for transmitting information among a plurality of audiovisual apparatuses connected through an IEEE 1394 network, comprising:

• a first audiovisual apparatus connected to said IEEE 1394 network that includes an information opening data storage section for opening predetermined information to audiovisual apparatuses connected through said IEEE 1394 network and a control section for reading or writing data stored in said information opening data storage section by receiving predetermined commands through said IEEE 1394 network, and
• a second audiovisual apparatus connected to said IEEE 1394 network that includes a control section for issuing commands for instructing the reading or the writing of data stored in said information opening data storage section, wherein data is stored in said information opening data storage section provided in said first audiovisual apparatus in the descriptor format having a predetermined hierarchical structure,
• said predetermined information is stored in a board set in said descriptor format,
• the position at which said predetermined board is stored is directly instructed by a highest-order descriptor having said hierarchical structure,
• and information concerning said predetermined information is stored in an information area instructed when said hierarchical structure is retrieved from said highest-order descriptor.