Recommendation for sync software

How about using the NAS as a Time Machine Backup and only choose to backup that one folder in Time Machine preferences?

Or you can use software like "sync 2 folders" --> google it.

 

Here's an automator workflow to copy to another folder by schedule:

http://www.macworld.com/article/1157339/automate_backup.html

But I've used the free Backup application included with your system to do the same thing.

Both do it by schedule, not by sensing when a change has been made. But perhaps you could do that with a folder action and a script.

I liked the above actions because they overwrite existing files, which is what I wanted instead of versions. Both have their uses, depends on what you need.

 

Chronosync