A 1956 Fidelio under Erich Kleiber from Cologne,Germany. Featured are Birgit Nilsson, Hans Hopf, Paul Schoeffler, Gottlob Frick, Hans Braun (Don Fernando), Gerhard Unger (Jacquino), and Ingeborg Wenglor (Marzelline.)\xa0\xa0\xa0\xa0 (73 min.)