Oh wow I didn't expect that much time, think I'll just get 3 or 4 32G so I don't have everything on one card if I don't download them. But really a 16G with about 2hr would just right for a day or 2 and carry 4 or 5 plus they are cheap. Thanks
My files for 4K video are about 1.75 GB for each 5 min clip or about .35 GB/min. I use 16 and 32 GB cards. Remember they must be U3 (a 3 inside the U).