minutes of erasures were not accidental, as Nixon's secretary Rosemary Woods claimed. Stockham was able to discern several distinct erasures and even determined the order of erasure. Stockham's team reached agreement on seven conclusions detailed in their 87-page report to Chief Judge John J. Sirica: Development of audio technology Stockham led the development of the Digital Audio Tape (DAT) format, a user-recordable digital tape that was popular for a time in the 1990s. The continually lowering price of compact discs led to DAT being used only in certain roles, and its last major manufacturer, Sony, phased out development starting in 2005. Stockham received wide recognition for his pioneering contributions to digital audio. He received, among many others, the Gold Medal award from the Audio Engineering Society in 1987, a Technical Emmy award in 1988, the Poniatoff Gold Medal from the Society of Motion Picture and Television Engineers, a Grammy award from NARAS in 1994, the IEEE Jack S. Kilby Signal Processing Medal in 1998 and a Scientific and Engineering award from the Academy of Motion Picture Arts and Sciences in 1999. References External links An article on Soundstream and the introduction of commercial digital recording in the United States 1933 births 2004 deaths MIT School of Engineering alumni Montclair Kimberley Academy alumni People from Passaic, New Jersey University of Utah faculty Grammy Award winners Emmy Award winners