Is there a way to prevent the user from scrubbing forward when watching a movie? I've seen this done on web commercials but I can't seem to find out how they do it. What I have is a very long training session where I need to make sure they watched it. They may need to replay something so I don't really want to remove the scrub bar, But I can't allow them to skip any of the content. Any help would really be appreciated. Thanks.