Here's more fodder for those who argue that a large number of consumers still want physical media: vinyl sales at Amazon are up 745 percent from five years ago, the company said this morning. "Vinyl is the fastest growing music medium on Amazon," the company stated.

Amazon also said that vinyl is the most popular medium within AutoRip, the feature that provides customers with free MP3 copies of select vinyl albums or CDs they purchase from the online store. Amazon's reported growth in vinyl sales is consistent with an industrywide trend. Nielsen SoundScan estimates that vinyl unit sales will grow to 5.5 million in 2013.