Quantegy
Quantegy Inc. was a manufacturer of magnetic tape and professional external hard drives based in Opelika, Alabama. Their tape products were primarily used in analog audio and video recording studios, but they also have some use with digital data storage devices and instrumentation recorders along with some audiophile home hobbyists. The company was created at the end of World War II by Major John Herbert Orr as Orradio Industries. This was a result of the US Army requiring an American supplier of magnetic tape. Magnetic tape was a German invention and after the war, the German manufacturing ability was  destroyed. , Quantegy was working on reviving Quantegy 456 Studio Mastering Tape, Quantegy 499 Gold Studio Mastering Tape, GP9 Platinum Studio Mastering Tape, as well as the Black Diamond Series of products. But , no progress had been made. Most of the tape production facilities, located in Opelika, Alabama, were sold in 2008 and few years later demolished.