A demultiplexer unit separates a transport stream (TS) of an input digital broadcast into video information and audio information. A video decoder decodes the video information output from the demultiplexer unit to output a video signal. An encoder encodes the video signal output from the video decoder. A buffer stores the audio information output from the demultiplexer unit. A remultiplexing unit multiplexes video information encoded by the encoder and the audio information stored in the buffer. An HDD stores the video and audio information multiplexed in the remultiplexing unit.