Lets you choose pairs of documents, folders, or disks that you wish to keep “the same”. Once pairs are specified, you can “synchronize” them so that the most recently modified version of a particular document in one place will replace an older version in another place. The items you synchronize can be on the same computer or on different computers. If you use a computer that has more that one hard disk, you can synchronize files with copies stored on different disks. Good for backup use. Replaces the application, “PowerBook File Assistant”.