According to the invention, a video reproducing apparatus includes: a reading module configured to read out video information and caption information, the video information including control information; a video processing module configured to generate a display image to be displayed on a screen, the display image having an image corresponding to the control information; a caption processing module configured to generate a subpicture based on the caption information, the subpicture including a caption image for a caption and a mask image for masking the image corresponding to the control information when the subpicture is superimposed on the display image; a video synthesizing module configured to generate an overlapped display image by superimposing the subpicture; and a video signal outputting module configured to output the overlapped display image to a control signal extracting apparatus that extracts a control signal from the masked image corresponding to the control information.