I was speaking to an engineer who briefly was talking about how much of a pain it is to mix for mp3, I didn't get a chance to further ask him about it, but it seems interesting enough, or at least to mix for streaming music (ie. Myspace, download.com etc).

Anyone delve into this relatively new art of mixing for the streaming mp3 format?

Though I am curious, as far as myspace goes, whether they provide a higher stream rate for more popular (signed) bands, as I am listening to a song by heavy rock band Atreyu whose music sounds curiously much better than your typical myspace stream.