The 1:11 Super Copy Tower HS CD/DVD Duplicator incorporates eleven of the latest 20x DVD Recorders for eleven simultaneous DVD copies at up to 20x speed or 11 simultaneous CD copies at up to 48x, without a computer. It can also copy to DVD-RAM media and also copy up to 8.5GB on Double Layer media offering the broadest format compatibility available. It has a built in removable 160GB hard disk drive to store frequently used source disc images and maximizes copying stability especially in high speed copying operations. It can also make a quick copy of a DVD/CD, by just placing the master disc in one of the DVD/CD Recorders, loading in blank media for the number of copies you want and the master disc in one of the DVD/CD Recorders, loading in blank media for the number of copies you want and pressing "Copy". The towers will sense the master disc and automatically make the copies. The distinctive "professional black" design fits perfectly in any environment, from the computer room to the Hollywood Studio.