Duplication Technology Inc of Boulder, Colorado claims to have the first Digital Audio Tape data duplication system, the ECHO-4000 Tower, which uses Archive Corp’s Python 5 quarter-inch digital drives to duplicate up to eight 4mm tape cassettes simultaneously; additional cabinets enable up to 12 copies to be made at one time; a separate keyboard, monitor and menu-driven software simplifies the duplication process and a disk drive and a master storage option are also available so the user can copy from disk to tape or from tape to tape; the Echo-4000 is from $24,200 for the two-drive configuration to $60,800 for the eight-drive configuration.