Heh, it's no worries. My SD card is an 8GB SDHC card but right now there's only 1.28GB free. I plan on saving up for a 32GB one so I can fit a few more games on there.OOPPS - just seen your Edit now oh well, now you know how you can test your USB-stick
PS: You can also use a big SD card - mine is 256 gb. You just have to make some thing to make it work.