"The requested URL was not found on this server."

I have some videos taken on my iPhone 5 that are giving me this message. On top of that, they won't let me email or transfer them to my computer. This doesn't make sense, because these are files that are native to my phone. There should be no URL that they would have to connect to. It's also effecting some photos that I can't transfer.

This isn't the case with every video, as I was able to transfer videos/photos to a computer. The sucky part is that most of these videos are of my 11 month old son and they exist nowhere other than my phone. Please help!