Robert Spann asked how best to copy everything on his internal drive. Should he image the drive, or clone it?
Cloning copies the complete contents of one drive—the files, the partition tables and the master boot record—to another: a simple, direct duplicate. Imaging copies all of that to a single, very large file on another drive. You can then restore the image back onto the existing drive or onto a new one.
Typically, people use these techniques to back up the drive, or when upgrading to a larger or faster drive. Both techniques will work for each of these chores. But imaging usually makes more sense for a backup, while cloning is the easiest choice for drive upgrades.