hi all,i recently bought a 64g sd on amazon,i tried out the read and write speed on my mac and i was very disappointed as it was a class 10 and it seemed ridiculously slow. i put the card in my camera to format it,the format went fine and i tested out a few pics all seemed well,i turned my cam off for the night and today i went to power it up and it won't power up,i thought maybe the battery but i knew i just changed it the other day to a full one,i put in one that i just charged and also won't power up,i put both batteries on the carger and they went to green right away so i know they are fully charged,still won't power up,could a corrupt sd card damage the camera,like i mentioned it seemed to format just fine but all of the sudden won't power up,any suggestion?thanx in advance


