Identifying copyrighted materials are only possible if you have the original copy with its digital signature. So the current methods aren't sufficient as we think since many people can still sell and play copyrighted videos.

 Video piracy has become a serious issue nowadays and researchers at Tel aviv university have found a way how to protect original video's and preventing video piracy that way. They have made a video technology that prevents video players from playing pirated videos. It should be quite useful because as it scans and analyzes the footage in grids to see if the footage elements are there. In that way the DNA of the video is being analyzed and scanned and if there's a DNA mismatch the video player wont play the copyrighted videos.

This might be the ending of those people making a living of selling pirated and copyrighted videos. But so fat it hasn't been implemented,but will it be successful?