To provide a network system capable of easily reproducing a desired musical piece data or the like in each AV equipment.

An AMP 1 obtains text information, regarding the media to be regenerated of each target equipment (CD player 2 to DVD player 4) respectively, and generates control lists, in which obtained text information is made to correspond to each target equipment. The AMP 1 selects a musical piece data to be regenerated from the control lists in accordance with indicated information transmitted from a remote controller 1a or the like, and adds the selected musical piece data to a regenerated list. The AMP 1 successively indicates the regeneration of the musical piece data to be regenerated to the corresponding target equipment in accordance with the regenerated list.