This is my first post and I writing on behalf of my buddy who's on a safari vacation in Africa.
Before his trip he purchased a 5200 and a couple of SanDisk cards. He found that the camera/cards never give a warning that the card is full and will overwrite existing images. Luckily his prized images of gorillas were backed-up before the camera overwrote those.
Anyway has anyone seen this behavior before? I don't know if it's on more than one card. Is there a setting on the camera that he missed? He mentioned he did format both cards in camera before use.
I did warn him that he should test the camera before he left for his trip but the camera just became available the day before he left.