Just a couple of days ago I got a Lexar 64 GB XQD 2933x card for my D5. Today when I tried to format the card in the ca,mera I´ve got an error message; " Cannot format memory card. Card may be defective. Insert another card. My Sony XQD card worked without any problem in both card places... First I tried to use Laxars Image Rescue 5 and tried the secure format option there...After about 4 minutes formatting I´ve got an error message from the program; "An error occurred while formatting (-1)" After that I tried the other format options in the program the "Format FAT 32" and the card is working now... Should I use this card without any concerns or it would be better to get another one??? Have anybody similar troubles with the Lexar cards in the D5??? Thank You for your opinion about what to do now...