Cost of CDs and other digital media have fallen dramatically to compete with the illegal free-trade of copyrighted material and legal online distributors. In reality, the CD album, as most people know it, is experiencing the process of extinction.[19] The sales of CDs have been falling dramatically over the past five years or so; Kusek, in his book The Future of Music , attributes non-competitive pricing of CDs, among other things, to the downturn of CD sales.[20] DVDs and video games add so much more value for price than a CD does.[21] To quote Kusek on the issue of value and CDs, he says, “The CD simply no longer seems to be in the same league in terms of customer's value perceptions.”[22] As a result of online file-sharing and the rigid marketing policies of record industries, “the best-selling CD has become the blank, recordable one.”[23] Cold, hard, facts such as these have forced artists, in many ways, to ensure their work is of the highest quality; disappearing quickly are the days of buying entire albums of music, at full album price, simply for one song.