for class 6, there are only two companies that are on top and competing for first IMO. they are A-Data and Transcend. both of these give you the true class six speeds, altough the sandisk class 4 is sometimes faster, according to what it's doing and whose testing it. there are a bunch of other brands on ebay (transflash, ridata, team, topgram) but i would advise against these since they are known to either die within a short period of time, not hold the 16gb like promised, or not actually give you class 6 speeds.
There are people here that would swear to the quality of no name brands, but those people are getting "lucky". the reason for the cheaper cards are either becasue they have been sitting in a warehouse for a while or because they are very cheaply made in a cheap factory.
A-Data has been around for a while now, so has Transcend, and I know they have good cards, but i don't have any first hand experience with them so I cant vouch. I am also not sure if they have true class 6 speeds or if they have lifetime warranties.
If I were you (and I was yesterday when I bought my card) I would go for the Transcend card. Transcend has a lifetime warranty an all of their cards and have been proven to have the true class 6 speeds.
here is the link:
Amazon.com: Transcend - Flash memory card ( microSDHC to SD adapter included ) - 16 GB - Class 6 - microSDHC: Electronics
If you want more decisions, you could do some googling, but I have done some research on this myself already.
good luck on your decision.
Edit: It looks like a-data DOES have the warranty as well. So you choices now basically come down to price. and the above poster found an a-data card for 60 bucks.
p.s. thatnk for finding that AFTER i bought mine for 74 bucks. grr...... jk
) iPod box, or PS3 etc...
