Description from the publisher
Synchromagic - foolproof synchronization of files and directories, either one-way or bi-directionally. Tasks can also be performed over a local area network, FTP and Internet Kiosks. Multiple targets, silent mode, shutdown after synch, and email report included. File can be selected or excluded by either byte size or extension. Exclude specific folders and files. Create disaster recovery backups. Scheduler, invisible mode and dial-up included.
Other products of this publisher
Inforix is a very useful utility which count size of subdirectories and show the result in foolproof way. It can be called from shell extension of Windows explorer (right button click submenu), from Windows start menu or using command line.