Idem enables the user to automate file synchronization and replication. Idem secures critical data duplicating them from a computer location to another. It is a good solution for "mirroring" important folders from a Windows NT server toward another. It checks a list of source folders at regular time interval and updates target folders with new or modified files. It is distinguishable from other expensive mirroring or clustering products by its ability to fully preserve Macintosh filenames and structures stored on a Windows NT server. You can use Idem to synchronize a laptop on a network.