A megahertz is one million (or 106) hertz. See hertz, kilohertz (one thousand hertz), gigahertz[?] (109 hertz), terahertz[?] (1012 hertz), and petahertz[?] (1015 hertz).
... Consortium sought to impose. The cryptographic keys themselves have been discovered and widely disseminated (see DeCSS). See Professor Edward Felton's freedom-to-tinker ...