I believe so. Just make sure that the Airport Extreme is running at least version 7.3.1 of the firmware. I personally use an Extreme and a WD MyBook as my backu

I believe so. Just make sure that the Airport Extreme is running at least version 7.3.1 of the firmware. I personally use an Extreme and a WD MyBook as my backup solution and while I wouldn't say it's fast I've never had issues where it wouldn't work. see also: http://www.engadget.com/2008/03/19/time-machine-now-works-with-airport-extremes-airdisk-feature/ http://www.engadget.com/2008/03/19/time-machine-now-works-wi...