Grab tunes off Pandora

Pandora is an excellent music software that you can use to find new music. But how are you gonna keep those music that you hear? You can use this app called Pandora Downloader. Using it, you can save the music that you hear as MP3 files. It is certainly handy way to get new music, but I'm quite skeptical about the legality of this thing. Also, seems like Pandora has blocked the saving of music using this method, but you can count on the developers to find a way round it.