One way, is putting the file adress on DAP and imagingly download it (ofcourse it won't download a thing, but on DAP you can see the file quality.
An other way is downloadind MP3 Lister from http://www.codevisions.de/, though it is Mp3 Lister you can use it for other audio types. If amazingly it won't let you, just search for a suitable lister..
The 3rd and last option, though I'm not sure about it, is using MusicMatchJukeBox. Just listen to the music, I think it writes the quality somewhere.