That should work
look at page 12 of your manual here
any micro sd or micro sdhc up to 8gb should work it doesn't have to be samsung
would work as well but the one you picked from samsumg is very fast and usually for cameras you don't need to be that fast for mp3, unless yopu are shooting or watching video, if that is the case get the first one.
I'll shut up now I'm starting to confuse myself