In a study conducted by the British Medical Journal, 88% of patients who failed to respond to PDE5-Inhibitors (Viagra, Cialis, Levitra) were successful with injection therapy. Additionally 48% of men who failed to respond to PDE5-inhibitors responded when used in conjunction with injection therapy.
The following year he released Graffiti Bridge (the sequel to Purple Rain), which turned out to be a considerable commercial disappointment. In 1991, Prince formed the New Power Generation, the best and most versatile and talented band he has ever assembled.
From Wikipedia: The first Compact Disc for commercial release rolled off the assembly line on August 17, 1982, at a Philips factory in Langenhagen, near Hanover, Germany. The first title released was ABBA's The Visitors (1981). CDs and Sony's CD player CDP-101 reached the market on October 1, 1982 in Japan, and early the following year in the United States and other markets. This event is often seen as the Big Bang of the digital audio revolution.