What would be great is if Magnatune had a stream-to-shopping cart click-through somehow. Unfortunately, there’s no real standard. One can embed Winamp minibrowser URLs, but that’s just plain annoying. Neither Extended M3U, PLSv2, or icy/shoutcast have per-song URL support (and no players with a clickthrough interface anyway)… This would be such an obvious thing that people would want to do that you’d think there be a playlist standard to attach extra arbitrary metadata onto streams, but I guess not.
Well, I guess you can have some smarter streaming software that tracks which song to which IP (or some other identification method that’d work for proxies; but you’d have to assign a cookie or something first), so that one can visit a page and be able to buy from there. Not *quite* one-click, but pretty close.