A distribution system comprising a distribution device and an information device; the distribution device including: a communication part, configured to communicate with the information device, a memory part, configured to store a video data, and a controller, configured to transmit the video data to the information device through the communication part of the distribution device; the information device including: a communication part, configured to communicate with the distribution device, and a controller, configured to execute an application that reproduces the video data downloaded from the distribution device through the communication part of the information device; wherein the controller of the distribution device is configured to transmit the video data to the information device, and wherein the controller of the distribution device is configured to add dummy data to the video data and to transmit the video data including the dummy data to the information device in response to a request signal comprising a data size information value of the dummy data to be added; characterized in that the controller of the information device is configured to transmit the request signal to the distribution device through the communication part of the information device under a situation that the application is running in the background, and receive the video data including the dummy data from the distribution device; wherein the request signal is for requesting the video data including dummy data having a data size with which a transfer rate of the video data becomes greater than or equal to a termination threshold value; wherein the operating system executed by the controller of the information device is configured to terminate the download of the video data while the application is running in the background and the transfer rate becomes lower than the termination threshold value. a distribution device and an information device; the distribution device including: a communication part, configured to communicate with the information device, a memory part, configured to store a video data, and a controller, configured to transmit the video data to the information device through the communication part of the distribution device; a communication part, configured to communicate with the information device, a memory part, configured to store a video data, and a controller, configured to transmit the video data to the information device through the communication part of the distribution device; the information device including: a communication part, configured to communicate with the distribution device, and a controller, configured to execute an application that reproduces the video data downloaded from the distribution device through the communication part of the information device; a communication part, configured to communicate with the distribution device, and a controller, configured to execute an application that reproduces the video data downloaded from the distribution device through the communication part of the information device; wherein the controller of the distribution device is configured to transmit the video data to the information device, and wherein the controller of the distribution device is configured to add dummy data to the video data and to transmit the video data including the dummy data to the information device in response to a request signal comprising a data size information value of the dummy data to be added; characterized in that the controller of the information device is configured to transmit the request signal to the distribution device through the communication part of the information device under a situation that the application is running in the background, and receive the video data including the dummy data from the distribution device; wherein the request signal is for requesting the video data including dummy data having a data size with which a transfer rate of the video data becomes greater than or equal to a termination threshold value; wherein the operating system executed by the controller of the information device is configured to terminate the download of the video data while the application is running in the background and the transfer rate becomes lower than the termination threshold value.