recovery of physically corrupted photos (whether deleted or not) e.g. bad flash card & etc.

There are may resons why phootos get corrupted, e.g. kids messing with your camera, batteries fail during save, "simple stupidity" and more.
So a program that can rebuild a damaged photo whould be handy.
Plenty recover deleted photos, but I have never come across one that properley recovers corrupted photos (whether deleted or still existing in their folder).