Backup your files in real time, as changes occur, with Yadis Backup
Yadis! Backup is a free and simple backup application, that will copy your files to almost any destination you want, preserving or not the structure of your directories.
Marked folders are backed up in real time (no scheduling needed).
Whenever you make a change, Yadis! makes a backup, and if your backup destination isn’t available, it remembers the changes and whenever the location becomes available Yadis! will backup your changed files.
The program comes with a full manual that will let you know how to use it.