camera 3d. I like these as I have a 3d tv but kind of avoid them as sometimes they don't seem recognized in the computer. I click to open and windows says it needs to know what program created the file and It gives a .mpo file extension???. In Nikon software it shows the photo but wont let me adjust it . Just there in the file list. But here is the weird thing. I dragged one back from google backup so they are automatically backed up. and the one I dragged back from google backup I can adjust as it comes back with a .jpg extension. I think windows is confused...