Digital duplicators are known for their high speed in comparison to other printing methods. Captured typewriters and duplicators were used to fabricate bogus issues of the paper. The duplicators would operate at double (or greater) tape speed. Plants are the most prolific genome duplicators. He starred in "The Human Duplicators" (1965) and regularly guest-starred on TV shows. ATF later purchased the competing Davidson line of duplicators and changed their name to ATF-Davidson. One of her few starring roles was in the 1965 science-fiction film "The Human Duplicators". "The Human Duplicators" has not received particularly good reviews from critics over the years.