Primera recently released a copyrighting program called PTProtect ( PTProtect DVD Anti-Rip Copy Protection Software (http://www.primera.com/ptprotect.html) )for all of it's automated duplicator units. Unfortunately, that have not made this for the Mac because they say they have not had any interest. This seems like a good and affordable solution for a small production house. If any one else is interested here is the information:

TSupport@Primera.com
Daniel Wagner
Primera Technology
Technical Support
763-475-6669