MagicMirror is Free program for Mac OS developed by Nicolas Jullien
MagicMirror allows you to effortlessly create a reproduction copy of any supply (or division of) mounted on your Mac towards any other mounted supply or handy in the network. Only the modified files are effectively copied. This results in a moderate hard disk access and the system lets you continue working with your Mac.
Backup verification tool is Freeware program for Mac OS developed by Eon Works
cpverify verifies that a documentation or directory structure has been copied or burned without errors. That is, the copied documentation(s) is precisely the unchanging as the original. This is done by calculating a cryptographic checksum using the md5 digest algorithm.