An information processing device comprising: a wireless communication unit adapted to perform media transmission to a first information processing device and a second information processing device; and a control unit adapted to perform control to exchange information in a device discovery process or a capability checking process in a case where the media transmission is newly performed to a second information processing device during the media transmission to a first information processing device, wherein said information is information for deciding a communication path for performing the media transmission to the first information processing device and the second information processing device or a data transmission format used when the media transmission is performed; wherein, in a case where a first data transmission format used by the first information processing device is switched to a second data transmission format usable by the second information processing device in the device discovery process or the capability checking process, the control unit is adapted to switch a data transmission format used by the first information processing device to the second data transmission format and is adapted to then set the second data transmission format as a data transmission format used by the second information processing device; characterized in that, when the first device does not permit the switch of the data transmission format, the device performs media transportation to the first device and the second device in different formats; and wherein the device decides which of the first and second devices is a connection target for the media transmission based on priority levels associated with the first and second devices. a wireless communication unit adapted to perform media transmission to a first information processing device and a second information processing device; and a control unit adapted to perform control to exchange information in a device discovery process or a capability checking process in a case where the media transmission is newly performed to a second information processing device during the media transmission to a first information processing device, wherein said information is information for deciding a communication path for performing the media transmission to the first information processing device and the second information processing device or a data transmission format used when the media transmission is performed; wherein, in a case where a first data transmission format used by the first information processing device is switched to a second data transmission format usable by the second information processing device in the device discovery process or the capability checking process, the control unit is adapted to switch a data transmission format used by the first information processing device to the second data transmission format and is adapted to then set the second data transmission format as a data transmission format used by the second information processing device; characterized in that, when the first device does not permit the switch of the data transmission format, the device performs media transportation to the first device and the second device in different formats; and wherein the device decides which of the first and second devices is a connection target for the media transmission based on priority levels associated with the first and second devices.