SyncBack might have discontinued, try finding SyncBack alternatives
SyncBack is software which allows backing up and synchronizing files to the same or different drives, to different media (CD, DVD, Flash, zip), or to a remote server.
Developed by 2 Bright Sparks
Apps available for
Sync Files Between Two Directories
Synchronize files between two directories.
SyncBack is an Freemium Product.
2 Bright Sparks has developed SyncBack