an audio and video recording and reproduction apparatus of the present invention is an audio and video recording and reproduction apparatus , comprising : an input switching device for switching an input between a first input signal including a first audio and video signal which is input from a first input , a second input signal including a second audio and video signal which is input from a second input , and a third input signal including a third audio and video signal which is input from a third input , and for outputting one of the first signal , the second signal , and the third signal ; and a recording device for recording the second input signal and the third input signal on the information recording medium as one recording unit when the input switching device switches the input from the second input signal to the third input signal .