My company has no problem. I would hope no one brings in vulgar material, or some headbanging song that is 12 minutes long, but what are the chances of that? Most karaoke enthusiasts are quite aware of "the program" and generally buy their discs open market and bring their favorites because not all karaoke companies are sure to have their particular songs they like to sing....that is the general motivation of the karaoke singer who brings discs to a show.