http://www.swissinfo.ch/e...d=28996072

"Unique live concert footage spanning the entire 44-year history of the Montreux Jazz Festival has been saved for future generations under a new initiative.

Recordings by artists such as Ella Fitzgerald, Aretha Franklin, B.B. King and Prince will be preserved and immortalised in the “Montreux Sounds Digital Project”, launched with the Federal Institute of Technology in Lausanne (EPFL) and private sponsors. (...)"

Prince should contact the Federal Institute of Technology in Lausanne. Maybe they could save all those rotting tapes in his vault...