ComparatorPro will compare files, folders and sub-folders (if desired) to quickly update backup set before you get down to some serious work. It can easily sync the files to ensure a perfect match. This comparison utility will compare and verify your files based on your choice of Data, Size, Timestamp and, or CRC. ComparatorPro synchronize your files between PCs, backups or any removable media such as CD RW, ZIP, JAZ, FLASH drives etc. ComparatorPro will list you the changes between two media, presenting you the Missing files, those that are Newer and those that are Duplicate from both media selected. You can select which files to copy over to the other media, or copy them all in one go. ComparatorPro let you select how files are compared, and where to look for files. Scan Sub folders let you scan for files not only in the selected folder, but including all of its sub folders. This is very important to synchronize or backup an entire folder, or drive. CRC is an option that will caculate the CRC (cyclic rudency check) to be used in data comparison, or for your own use. Include is Presets for fast synchronization of multiple source and destination. ComparatorPro is an alternative to the Microsoft Briefcase. The Windows system menu is available to you by right clicking a file.