[Alondite]

I knew within about 3 seconds which was the 320 and which was the 128. It wasn't difficult at all if you know what to listen for. What's startling though is that most people picked the 128clip as sounding better...
 

 

[Coop]

Took the test with my ATH-ES10 directly hooked up to my laptop. 
 
Picked the 320kbps clip in an instant. I can't really put my finger on it, but there's something different in the background noise...