Wait, so how does 8GB work? The phone sees it as a 2X4GB card?

So if I stored all of my music on the "first 4GB card", then my W580 can see the files there just fine, problem free. Now if I have to store additional files, then the files would be on the "second 4GB card" since the "first 4GB card" is already full.

Example: Say I'm listening to Linkin Park which is located under the "first 4GB card" and if I decided to listen to Simple Plan which is located in the "second 4GB card", my W580 can find Simple Plan without any problems.