Well Typically I stream AVIs when it comes to shows/movies, I find it will play just fine for a few minutes, but then it will stop and buffer for 30 seconds, or st-t-t-op and st-t-t-utter for a while until it catches back up. I suppose I could pickup a quality wireless adapter while i'm out tomorrow and give that a shot. Something tells me a PCI adapter should fare better than a USB adapter.