In Pandora's case it's almost certainly a fee per song, as it is the larger of those two values. Micahel Robertson (mp3.com) has a good write up of this http:

In Pandora's case it's almost certainly a fee per song, as it is the larger of those two values. Micahel Robertson (mp3.com) has a good write up of this http://michaelrobertson.com/ http://michaelrobertson.com/ (i can't find permalinks on his site, wtf?) I agree it's a great service. I use it frequently and have discovered lots of good music there. I'm still not optimistic it will be around long term, although $35 million should keep it around for a while. I wonder how close to profitability they are -- my guess is not very.