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 synchronizes your files between PCs, backups or any removable media such as CD RW, ZIP, JAZ, FLASH drives, network, etc.