[quote name='bruceg']For the psp, I used to regularly buy Sandisk cards over the Sony brand. The Sandisk cards were faster and equally reliable.[/QUOTE]
Same. All of my memory sticks were SanDisk, except for a 2GB Sony branded one somebody gave me. You'd only get the same speeds (sometimes faster IIRC) on the Sony cards if you bought the most expensive ones- they have the normal, then the HC or whatever, and a few others. They'd tack on anywhere from $15-20 more for each tier of card, so the normal card would be like $20 vs the best card (of the same capacity) for like $60.
[quote name='pyschonerd']4GB is pushing it tight though right?[/QUOTE]
Yeah, that's pretty bad. You'd only be able to hold 1-3 Vita games on it, depending on the size of the games (Uncharted and Sly Cooper are both 3+ GB- almost all the big games are in the 2-3+ range). I'm having a hard enough time with my 8GB stick... Was fine until PlayStation All-Stars got like 1GB in patches, and prior to buying Sly Cooper (cross-buy).