"The SPARS code is a three-position alphabetic classification system developed in the early 1980s by the Society of Professional Audio Recording Services (SPARS) for commercial compact disc releases to denote aspects of the sound recording and reproduction process, distinguishing between the use of analog equipment and digital equipment." Wikipedia, USA Richard James Burgess, the Marketing, Sales and Licensing Director at Smithsonian Folkways Recording, i.e. the non-profit … Continue reading Technology - AAD, ADD, DDD: the SPARS Code in the 21st century