Please pardon my ignorance, but when you say "resetting," do you mean doing a factory reset, or something else? I have tried removing / re-inserting the SD that did not help. I even tried a different battery -- just in case, ya know? If you mean factory reset, I will definitely try that.
I'm also thinking the card was damaged, as it cannot be read by my computer either. I'm just very upset that I'm losing the pictures and videos (especially the videos) of my daughter.