Hi all. I recently erased all content and settings as I was troubleshooting a problem. I'm setting everything back up new like it was a new iPhone. Here's the problem. I copied all of my camera roll pictures and videos to my computer. Now that everything's set back up, I want to copy these files back to the camera roll folder. When I drag/drop, it's not letting me. I'm not getting an error - they're just not going back "to" the camera roll folder. Is this not permitted or something?