Patience
by Gilbert and Sullivan
To Patience page at boisestate.edu
Opera Pages johnrpierce.com
Patience on video (for United States and Canada) at amazon.com
EMI has re-released on 16 compact discs  recordings of  nine operettas of Gilbert and Sullivan conducted by Sir Malcolm Sargent--Trial by Jury, HMS Pinafore, The Pirates of Penzance, Patience, Iolanthe, The Mikado, Ruddigore, The Yeomen of the Guard, and The Gondoliers--in a budget-priced, space-saving box (without librettos).  Sargent used very good singers, and recorded the music of the operettas without the dialogue. Available from amazon.com.
The Complete Annotated Gilbert and Sullivan
The Complete Annotated Gilbert and Sullivan
at Barnes and Noble

Review of a performance in New York, May 2002