I get the error message NO FIND SYSTEM FILES. I purchased two new sdhc memory cards and non of them seem to work with the dstwo card. The brands that i bought were sandisk and patriot. The first sandisk micro sd card that i bought works fine, but i thought i lost that card, so i went ahead and bought two new micro sd memory cards and non of them load up. I formatted it with my pc format and i even did the format with panasonic and still i get the same message, NO FIND SYSTEM FILES. Can someone tell me why this is happening?