Thanks, Nicholas, for posting a reply. It's been a while since I posted the message to which you're replying...since then, I have been backing up to CDs from my desktop computer and I'm anxious to try the newer flash disks out now because they hold more data than earlier ones. However, I don't have a clue as to how to choose the right one for the job. Quality and endurance are important and I want to make sure the one I choose will do the job. Any advice you might have would be appreciated.