The requested URL was not found on this server.
I was just going through my videos and found that about ten of my videos are not accessible. I believe that just a few weeks ago they were still accessible, though I cannot specifically remembering testing that since late December. Their thumbnails are now gray squares with a small "MOV" in the middle, and when I try to play them the first frame of the video is displayed with the play icon, but a message pops up saying "The requested URL was not found on this server." (The option "OK" is below the message.) When I tap the play icon, nothing happens. I cannot figure out why this would happen as none of my photos or videos are stored on iCloud or Photo Stream, so I don't know why URLs or servers would matter. Also, these were taken on my device so I know it's not an issue with the files not syncing correctly from my computer. Does anyone know how I may be able to salvage these randomly, recently corrupted video files? As a side note, I do not regularly sync my device, so restoring a backup is not an option for me, this would cause bigger problems than ten missing videos, probably.
iPhone 5, iOS 7.0.4