 Probably the greatest single loss occurred in the late 1960s when Metro-Goldwyn-Mayer Studios in Culver City, CA, discarded all of its orchestra parts and full scores (orchestrations), material that was both priceless and irreplaceable.At the same time music tracks recorded on nitrate film or magnetic film had begun to deteriorate.Responding to what was dubbed the "M-G-M Holocaust" by film historians, the veteran film and TV composer Fred Steiner formed a small watchdog group in the 1970s that included himself, his film composer colleague David Raksin, and music librarian Jon Newsom of the Library of Congress Music Division.