I think the problem is with the file format on SD card. I have 8 MR and 32 MB SD cards, formatted as FAT, the only option that works for them. I believe that this camera may require FAT16, FAT32, or ExFAT file format. I don't know why the SD cards won't support these different file formats, but all my attempts to format them other than FAT fail. Can someone confirm my finding?