bluebowser31 said:wait realy?!!? so what would the size of say 10 (legal) roms be?
maybe i only need 8gb...
It depends on which 10 ROMs those are, ROMs can be as small as 3MB or as big as 256MB. Newer games also tend to be larger than older games.
On average you should be able to get 125-200 games on a 8GB MicroSD card.
My sister, nephew and 2 nieces all have over 220 games on their 8GB MicroSD cards.