Originally Posted by fredlave
Mujokin's advice to be cautious when using it is well founded. It does not list your disk drives as A:, B:, C:, etc. and it's easy to mistake the target drive for the source and erase your precious microSD card.
There are worse accidents than erasing one's original microsSD card image: some folks have accidentally overwritten their Nook internal drive or even their PC/Laptop C: home drive