Disclosed is a remote-controllable media device and method of operating peripheral devices using the same including the steps of monitoring whether a remote code is received from a remote controller, verifying that a present external input source mode corresponds to which one of the peripheral media devices when the remote code is received from the remote controller, and converting the received code into a code corresponding to the present external input source mode when the peripheral media device corresponding to the present external input source mode is connected to the media device and then transferring the converted code to the peripheral media device corresponding to the present external input source mode.