It has been almost a decade since the first mass market digital audio (MP3) player came to the market ("MPMan" from SaeHan Information Systems)…. And boy have they come along way since. http://en.wikipedia.org/wiki/MP3_player.Size - Ultra Compact MP3 players have shrunk from the size of a deck of cards to the size of the tip of your finger.Storage - From the original 16MB of flash memory to 32