If you’ve been frustrated by the inability to skip past parts of DVDs on OSX the here is one solution. It’s a patch script that uses some binary hacking to remove the User Operation Prohibition locks from DVD playback software. Using UOP flags is a way to force users to watch trailers or warnings as part of the DVD experience. This script can patch Tiger, Leopard, and Snow Leopard systems. It also has the ability to generate diagnostic information for other installations that will lead to expanded support in the future.