pshane wrote:
Besides all of the recommended 'Back-Up' info, - I would add that, as small and inexpensive SD Cards are, when one fills up. insert a new one in your camera, and save the SD cards in a 'Tiny Library'! -
I have every one that I've used since around 2000, in hopes that they will serve as a 'Just in Case' option, in hopes that they continue to hold the info on them.
They are charge coupled devices. The "storage" charge will bleed off over time unless refreshed by plugging them in to power them to re-build the charge. They are not "permanent" as much as hard drives.
I won't use them for archival storage. (Nor SSDs.)