JRiver's newest version has a "listening test" of sorts that converts tracts of choice into various mp3 resolutions. I haven't tried it as I really am less concerned about mp3 anyhow as storage is now dirt cheap. My issues with streaming have less to do with the sound quality and more to do with their lame interfaces themselves. Dumbed down for the masses is what you get and until they have a way to let me use my own media player to stream my subscription through I simply can't take streaming very seriously. They will simply not get there on their own as most people don't want to learn any new software but simply want to switch on some music, with limited control over it.