Super Flexible File Synchronizer is used to back up your data and synchronize PCs, servers, notebooks, and online storage space.
You can set up as many different jobs as you need and run them manually or using the scheduler. The software comes with support for FTP, WebDAV, Amazon S3, and AES file encryption, as well as SSH and ZIP compression. There are powerful synchronization modes, including Standard Copying, Exact Mirror, and SmartTracking. Version 4 features a completely redesigned GUI with numerous improvements to make an extremely versatile synchronizing and back-up tool. The wealth of features fulfills all requirements that users typically have, while still being easy to use.
Archives contain the repairing data. You don't have to worry about CRC errors.