8GB Sony Pro Duo Cards

Hello all, I recently bought my first PSP (don't know why it took me so long to get on board) and i've been addicted to reading all about the massive homebrew scene. It came with a 512 mb card, but while i'm waiting for my copy of Lumines to come I've been tempted to upgrade to a larger memory card. I've been carefully searching ebay for genuine cards and tonight I came across a dozen of so auctions for 8GB Sony Pro Duo cards . I thought 4GB was the largest current memory card... Does anyone have an 8GB?

I have no intention of buying an 8GB mainly because it's more than twice the cost of a 4 GB and I think a 4GB San Disk will do my just fine. Also, is there a noticeable difference between the Ultra II San Disk cards and the regular San Disk cards?

if there are that many 8gb cards on ebay id be careful cus most are prob fake, were u live buddy?

Yeah, i won't be buying an 8gb off ebay... most of the auctions are located in Hong Kong. I live in the Bay Area, California