Have not yet tested the live and playback on a pc, but I have been able to get it working on mac by editing the security settings.
My DNR-322 still is pretty useless though. I have not been able to get it to actually record. It is connected to the camera. It is set to always record, but nothing ever records. ultimately i'd like to only record during certain hours based on motion, but for now i'm setting the bar really low, apparently not low enough for this thing. I've sent in another ticket to Dlink to see if they can help, but I think i'm going to look at QNAP hardware next. Right now, I'd rate the DNR-322 as somewhere between Big POS and turd.