Considering developing a software product which will enhance the control ability of existing media players for audio enthusiasts (audiophiles, htpc users and more). The first step is to estimate the market size for sales of PAID players such as JRIVER.com & AlbumPlayer.com. Does anyone have access to similar information? (preferably: how many people PAY for premium desktop media players; secondary: how many downloads of premium free players e.g. the above or others: Winamp, Foobar, Media Monkey etc).