Insert flash drive in USB port. Open Windows Explorer by right clicking on the Start button and click Windows Explore. If Win8 the folder shows on the taskbar when in the desktop. Drill down the left side for the flash drive, click the plus sign or triangle depending on which windows to drop down the menu or if only the movie files just click to highlight and the files appear on the right side. Right click on each file and click to rename in the pop up menu then simply add 10, 02 to 20 to the beginning of each video in the required order, clicking OK each time and you should be good to go. Edit: made slight update for easier understanding. This post was edited by owbist on Tue, Jan 14, 14 at 19:45

that is the whole point you use the image program to capture the image before something happens, then should you have any issues with the pc you simply reload the saved image and you are back to the time the image was taken just like a snapshot so you do want to do the occasional image backup so you have somewhat recent images. That way you are not just backing up your documtents and files you are also backing up your entire windows operating system fully updated and all your settings etc. You never want to wait till it is too late to do any type of backup. If you had to do a regular re-install that would mean you would need either your windows cd or the recovery cd that will bring it all the way back to how it was when you bought it which means you would need to do a LOT of updating of the operating system, redo all your settings then go through all your files and data and insert them in. Imaging is the fastest way to go and much easier in the long run. I use my external drive only when I need it I do not leave it connected. It can be left connected if you choose to do it that way. I use ADRIVE online storage, they provide 50Gig free storage over that you purchase. http://www.adrive.com/

Create the PDF...save it to your local machine...drag/drop it to the flash drive...what could be simpler? Am I missing something?

The fact the computer said it was not recognised shows the computer is aware 'something' had been attached. As Kudzu notes, it may be defective. You could ask a family member or friend to try it in another computer to confirm that. You could burn the photos to a CD to give away if you do not want to buy another flash drive.