Pandora Quality

What's with the low-bitrate songs on Pandora? I've been listening to a few different radio stations, and it seems like about 20% of the songs are 64bit max. It's enough to make me want to stop listening! For example "Somewhat Off The Way" by "Dogs Die in Hot Cars" sounds just plain bad.That sad, they're making it better. I still am not a mood person though. Even after adding a bunch of different artists and songs to a random station, I'm still bored. Plus I love those stats!