A communication device capable of correcting a burst error exceeding a correcting capability of an error correcting code by only transmitting one packet. With respect to data to be transmitted, a frame generating section 22 generates a frame for which an error detecting process, etc., is performed. A frame dividing section 23 divides the generated frame, by a predetermined number, into a plurality of divided frames. A transmission control section 24 generates a packet in which the plurality of divided frame are copied predetermined times. A transmitting section 25 sends the packet to a receiver. A receiving section 35 receives the packet transmitted from a transmitter. A reception control section 34 divides the received packet by the predetermined number. A frame reconstructing section 33 reconstructs the frame by assembling the divided frames in predetermined order. A frame processing section 32 performs an error correcting process, etc., for the reconstructed frame.