Hello David, Depending on your OS and the formatting of the drive you should be able to find an app that will clone the drive and verify the checksum at the time of the copy. Can you provide OS details to refine suggestions? With Regards, *Matthew Patulski* listening / thinking / doing +1 (616) 361-3951 / mrpatulski_at_gmail.com / linkedin.com/in/mrpatulskiReceived on Fri Mar 31 2017 - 11:22:31 EDT