Gilbert and Sullivan of these recordings have been reissued on CD. After the company was revived in 1988, it recorded seven of the operas. After the copyrights on the operas expired, numerous companies around the world released popular audio and video recordings of the operas. In 1966 and again in the 1980s, BBC Radio presented complete cycles of the thirteen extant Gilbert and Sullivan operas, with dialogue. Ad hoc casts of operatic singers conducted by Sir Malcolm Sargent in the 1950s and 60s and Sir Charles Mackerras in the 1990s have made audio sets of several Savoy operas, and in the 1980s Alexander
Gilbert and Sullivan (reportedly including a version of "Pinafore" transformed into zarzuela style), Catalan and others. There are many German versions of Gilbert and Sullivan operas, including the popular "Der Mikado". There is even a German version of "The Grand Duke". Some German translations were made by Friedrich Zell and Richard Genée, librettists of "Die Fledermaus" and other Viennese operettas, who even translated one of Sullivan's lesser-known operas, "The Chieftain", as "(Der Häuptling)". Gilbert adapted the stories of "H.M.S. Pinafore" and "The Mikado" into children's books called "The Pinafore Picture Book" and "The Story of The Mikado" giving, in some cases, backstory that