The biggest Media card the 83xx series can handle is 4GB. if you use a bigger card it will only allow 4gb of storage. Rumor has it that the new OS v4.3 will allow larger cards but cant confirm that. Hope this helps!
I wish I got the 4gb after reading this. All I saw was people using up to 2gb so thats what I got because I was dting without any type of storage. Oh well, I will wait and see how fast I use this up.