A long time ago I was repairing my dad's camera, I found an article describing the exact fault & a link to how to fix it, but the link was dead.
Used the wayback machine to find a text only copy of the fix (no pictures) which was enough.
Was immensely proud that someone had had the idea to invent the IA & have been recommending it ever since.
Yeah, shout out for rsync also. It's awesome. Combine it with ssh & it feels pretty secure too.