The invention provides a reproducing device or recording/reproducing device having an off-timer function with improved operability, power saving, versatility and degree of freedom for the user or a video display device incorporating such a reproducing device or recording/reproducing device. During an off-timer function operation, when reproduction of contents is detected (step 201), a contents reproducing time is calculated from TOC information (step 203, step 204), and when this contents reproducing time is shorter than a timer remaining time X of the off-timer, the timer time is regarded as a contents reproducing time (step 206, step 207), and in this way, when reproduction of contents is finished earlier than a predetermined timer time, power is turned off at the end of reproduction of contents and when the set timer time is longer than the contents reproducing time, the power is turned off at the end of the timer time.