It's misleading to compare a single track download on iTunes with an entire album bought on CD. If you assume that a CD comes with about 10 songs, the iTunes payout is actually better than a Retail Album CD (low end royalty deal).
Of course we all know that record labels loved making users buy an entire album for one or two songs -- but that's their own fault.
The numbers they display for iTunes and Amazon are completely incorrect. Having listed albums on both through Tunecore, I can tell you you get closer to 70% of the sale price through Amazon or iTunes than 9% - and when we sell MP3s/albums on Bandcamp.com, we get 100% of the sale. Good riddance to the compact disc.
That said, they're pretty much on the money as far as Rhapsody, Spotify and the like are. It's amusing that these companies even bother reporting the pennies we "earn" through them.
Of course we all know that record labels loved making users buy an entire album for one or two songs -- but that's their own fault.