Recording device and multiplexing method

A recording device comprising:

• a video encoding unit configured to compress and then encode video data pieces by a first unit of data;
• an audio encoding unit configured to compress and then encode audio data pieces in a second unit of data, a time length of the second unit of data being different from that of the first unit of data;
• and
• a multiplexing unit configured to, when a pair of record instructions made up of a record start instruction and a record stop instruction is repeatedly provided at time intervals, couple the respective video data pieces, which have been encoded by the video encoding unit, corresponding to a period from the record start instruction to the record stop instruction, and also multiplex the respective video data pieces with the audio data pieces, which have been encoded by the audio encoding unit and which correspond to the respective video data pieces, as one piece of record data, wherein
• the audio encoding unit continues the encoding at least from a first one of the record instruction until a last one of the record instruction, and
• the multiplexing unit selects the audio data pieces by the second unit of data from the audio data pieces, which have been encoded by the audio encoding unit, in such a way that an amount of temporal shift between the respective video data pieces and the audio data pieces, which have been encoded by the audio encoding unit and which correspond to the respective video data pieces, will become less than or equal to the time length of the second unit of data and then multiplexes the selected audio data pieces with the video data pieces.