A slide show display system with background music BGM that comprises at least one content provision device that is arranged to store at least one of image content and music content and to provide at least one of the image content and the music content, a playback device that is arranged to play back the image content and the music content, and an information processing device that is arranged to request the playback device to display a slide show with BGM on the playback device, using image content and music content that are selected for playback from the image content and the music content that are stored in the at least one content provision device, the information processing device, the playback device and the content provision device all being interconnected through a home network; wherein the information processing device includes a playback selection input portion that is arranged to input information for separately selecting at least one of the image content and at least one of the music content for playback, a content information notification portion that is arranged to separately transmit to the playback device: image content information that pertains to the at least one of the selected image content; and music content information that pertains to the at least one of the selected music content, and a playback request portion that is arranged to make a playback request to the playback device to play back simultaneously the image content and the music content that have been separately selected for playback, and wherein the playback device includes a content acquisition portion that is arranged to acquire the image content and the music content that are selected for playback from the at least one content provision device, based on the image content information and the music content information that are transmitted from the information processing device, a content playback portion that is arranged so as, in response to the playback request from the information processing device, to display the acquired image content sequentially and simultaneously play back the acquired music content in order; and wherein the content information notification portion is arranged to transmit to the playback device, as the image content information, information that pertains to a storage site in which the at least one of the image content that is selected for playback is stored; and wherein the content information notification portion is arranged to transmit to the playback device, as the music content information, information that pertains to a storage site in which the at least one of the music content that is selected for playback is stored. a playback selection input portion that is arranged to input information for separately selecting at least one of the image content and at least one of the music content for playback, a content information notification portion that is arranged to separately transmit to the playback device: image content information that pertains to the at least one of the selected image content; and music content information that pertains to the at least one of the selected music content, and a playback request portion that is arranged to make a playback request to the playback device to play back simultaneously the image content and the music content that have been separately selected for playback, a content acquisition portion that is arranged to acquire the image content and the music content that are selected for playback from the at least one content provision device, based on the image content information and the music content information that are transmitted from the information processing device, a content playback portion that is arranged so as, in response to the playback request from the information processing device, to display the acquired image content sequentially and simultaneously play back the acquired music content in order; and wherein the content information notification portion is arranged to transmit to the playback device, as the image content information, information that pertains to a storage site in which the at least one of the image content that is selected for playback is stored; and wherein the content information notification portion is arranged to transmit to the playback device, as the music content information, information that pertains to a storage site in which the at least one of the music content that is selected for playback is stored.