Doug Brandon is an American composer. He started doing music for games at Radiance, and then moved on to Atari. Brandon currently works at Hijinx Studios as a freelance composer.
Doug used Cubase for Atari ST, and it was converted to Mike Riedel's sound driver. It's unclear whether Doug did the conversion himself, or if it was done by Stephen Rozner, who was chiefly responsible for porting The Great Waldo Search to the NES.
Doug used GEMS.
Doug still has Cubase for Atari ST, but it was converted to Nick Eastridge's sound driver. It is unclear if he got the driver from THQ themselves, or from Nick Eastridge himself.