Re: 64GB SDHC Memory Cards
 

I use Transcend as well as Verbatim 32Gig class 6 cards, they have performed flawless in my NX5U and AX2000....

Re: 64GB SDHC Memory Cards
 

It really depends on the brand of cards that you are using in the camera. Class 6 Delkin cards work just fine, but Class 10 Kingstons don't. Lost a bunch of material that seemed to record just fine on to Kingston cards and the data was corrupted upon trying to offload it.

--Ben