Your question is a little off-topic from checksums, but for your info, I use Norton Ghost from Symantec Corporation. Among the many features is the ability to "copy a drive" (think "volume" in Mac terminology) which will create a bootable clone. One site from which you might start your Ghost education is
http://nortonghost.radified.com/ . Now, I hope we won't be banned from the SuperDuper! board.