is the card full?
no - do you have all those files (pics) on the root?
- yes - theres a limit on how many files/directories you can have in root based on the format. for fat i beleive its 128
- no - the number of files in a directory for FAT formated drive is 512.
IE - reformat to fat32 or NTFS and test it in the evices its going to be used.
edit - fat32 max # of files in a folder is 65k for what its worth.