Synchronize! Pro is an application that will keep all or part of an important file server mirrored to a secondary server on a network. In the event that one server goes down, the secondary server is immediately available. Synchronize! Pro can ensure that only the latest version of your documents are stored on each Mac. This prevents an older document from being edited, or overwriting a newer version. Synchronize! Pro is also useful for backing up all or part of a file server or a hard disk to another hard disk, a removable cartridge disk, or a networked file server. Since Synchronize! Pro copies only the files which are changed, backup is quick and painless.