I don't know. I just try and download the albums i want to play.
But for me, i just want to know why it still has to connect to the internet for EVERY SONG, even though I've got the song downloaded. I downloaded a bunch of albums for a road trip and after every song it wanted to connect to the internet (i'm guessing to check license or something). The problem is I didn't always have the best cell connection. In turn it caused a LOT of cell data to be used (kept trying to check, etc). I understand if it needs to check every so often or even once you start to play a whole album, but it was just ridiculous.