IDJ is in no way "one of the largest mainstream R&B labels out there".
http://www.islandrecords.com
Take a look at the artist roster; you'll be surprised.
I also agree with what emiko and haikudasai posted (and some of njanjayrp's points)... If I quote anymore, I think it'll blow a hole in the space-time continuum.
Oh, and I'll plug the interview link in case anyone else is interested (it got buried up there somewhere):
http://utadaunited.com/blog/?page_id=307
It's reaaaaaally interesting.