So I have 2 Delkin eFilm PRO 16GB SDHC cards. One just got replaced because of failure and when the replacement got in today I tried sticking it in the camera and formatting it, and it said "CARD ERROR". When I first got the camera in and stuck the cards in they worked just fine, so anyone know what the problem might be? I tried going in and still trying to format and it just repeats "CARD ERROR"? Thanks