METHOD AND APPARATUS FOR COPY PROTECTION, AND COPY PROTECTION PROGRAM

摘要

A method is provided for determining whether a video medium is DVD or not during playback on a computer with video output terminals using a DVD playback application. If the video uses MPEG 2 compression and overlay is 640 pixels 480 by pixels or above, the video is judged to be DVD. In that case, the video output of the computer is turned OFF.