Using DirSync Pro you can make incremental backups. In this way you`ll spare lots of time because you don`t have to copy all the files each time you want to update your backup; only new/modified/larger files would be copied.

Pros: Use DirSync Pro to easily synchronize files between machines. For example one could synchronize files on to a USB disk or a device like a PDA, a notebook etc. The USB data then can again be synchronized to another desktop PC easily. The backups are incremental thus it saves a lot of time. Only the modified, new or larger versions of the files are copied. One major feature of the application is that it is free source, 100% free of charge, free of ads and publishers claim it is free of spyware. Free to use for as long as you like. The program is also freely distributable. DirSync Pro is programmed completely in platform independent Java™ so it can be run under nearly every modern operating system including Windows, Linux and Macintosh. The user interface is very friendly. You can set all the configuration options quite easily. The application can also be run via the command interface. The UI lets you set output, directory settings and default settings. Each tab lets you set up very elaborate set of options. Output tab has the file explorer integrated. The display area can be set to display a set of options which include all outputs, new files, modified/larger files, delete files and errors/warnings.

Cons: Unlike most other packages on the Freedownloadscenter the download was a little involved. You had to go through several steps to arrive at the right download page rather than download starting automatically.

Overall: This sophisticated yet free application deserves a 4 star rating easily.