This is from a 1992 production in which Tosca was performed in the exact places of the libretto, in something close to real time. The orchestra was a few miles away.
1992, Conductor: Zubin Mehta.
For a free English translation, please see the following:
http://operainenglish.blogspot.it/2012/06/vissi-darte-tosca.html
Met Centennial 1983 - Catherine Malfitano & Alfredo Kraus - Roméo et Juliette
Va! je t'ai pardonné, love duet from opera Roméo et Juliette by Charles Gounod, act IV
Catherine Malfitano - soprano
Alfredo Kraus - tenore
Metropolitan Opera Orchestra,
Conductor: Jeffrey Tate