usb-image-toolSay you got a brand new advanced MP3 player for Christmas, one of those with a USB interface..  Lets say you wanted to play around with it, but still wanted to be able to return it to how it looked when you got it!?  Possible?  Why yes indeed 🙂  You can create an image of a usb device (possibly not all types of devices) using – USB Image Tool 

Cool 🙂