I have a bunch of photos that sat on a hard drive that didn't power on for several years.
From what I understood at the time is that the Headers were bad on some of the photos and that some of them could be fixed with headers from other whole photos taken in those sets.
And that these could be fixed with the right program to do it automatically, or could possibly even be done manually, albeit too time consuming.
Does anyone have experience with restoring photos with problems like this, or of the opinion that the photos cannot be repaired?'

I'd like any input, if there is affordable software, or if that software is garbage and what I need is at a price point where it would be better to send the files to someone else to try and restore what can can be saved.