The Rigler and Deutsch Index of Recorded Sound, also known as the Rigler Deutsch Index, is a union catalog collocation of the U.S. holdings of 78 rpm records in the collections of the Library of Congress Motion Picture, Broadcasting, and Recorded Sound Division; the Rodgers and Hammerstein Archives of Recorded Sound at the New York Public Library; Belfer Audio Laboratory and Archive at Syracuse University; the Yale Collection of Historical Sound Recordings at Yale University; and the Stanford Archive of Recorded Sound at Stanford University.