So, my problem is very simple. I like organizing my things by tagging them. I like photos. I have a lot of photos that I took in 2 different external drivers. I can't combine those two. I can't put all of my pictures in my laptop. I want to organize those pictures. I want to put an driver in my usb and the app/software just organizes the pictures from that driver, than, when I plug in another driver, I want the pictures from the last driver out and the pictures from the connected driver in. Any suggestions? It can be for windows also.