Help! We are using Vegas 11 and DVD architect pro in the studio. Since upgrading to 11, and Windows 7 64 bit (in order to take advantage of accelerated processing, New Blue Titler, etc.), our duplicator copies of dual layer discs will not play on DVD players. Our original masters will play on 2 out of 3 machines, but duplicated copies always fail to play. Is this a software problem or duplicator problem?