I have a Panasonic HC-V110, and I have taken several videos with it. I have a PNY 64GB memory card in it, it's only ever been used for this camera, and is formatted to work in it. All the video files that are on it work fine anytime it's in my camera. The problem is that it's getting full and I want to transfer them to another drive so it'll free up some space. I'm using a Window's 7 computer, but I have a Window's 8 as well. When I tried using the USB port, all it did was charge my camera's battery. So I tried the memory card slot in the front of the laptop. This brought up the prompt to format the disk in order to open it. I know that this will delete my files, and I definitely don't want that. I'm pretty new at this, so I don't know what else to do. Any ideas?