As they say on DOA.... "320kbps or STFU!" Actually, I would prefur if these websites like Juno would sell you the full quality WAV file on a CDR then as 192kbps MP3s. I think selling 192kbps MP3s is just totaly crap.
BTW: The people who say that you can't tell the difference between 128 or 192kbps in comparison to a WAV are just FULL OF CRAP!!!!! There is a dramatic difference, mostly in the high end and its the 909 OHs that stand out as suffering the most because its a sound that your used to. I've done my encoding experiments. The lowest KBPS you can use that doesn't "seem" to suffer sound quality loss is 256kbps, anything lower is uncivilized.