Over the last week or so I've taken several pictures and videos of a concert and some valuable time spent with my daughter. Today, when I went to my gallery to try to review them, they are not showing up. I only get a grey screen on the pictures and same with the videos. When I click on the video, it says it's not playable. The pictures and videos all took and I assumed were saving. I thought maybe it was just an issue with my phone so I uploaded to my computer, but they won't play there either. Any recommendations? These are very important to me. Any help anyone can provide is much appreciated!