Modern Warfare 2 on Xbox Live played remotely using the Spawn HD-720 and Spawn Player
This video was recorded by the Spawn Player recording feature while Eli played Modern Warfare 2 using the Spawn Player - i.e. the same laptop was both playing and recording the game at the same time in HD. Eli was playing Modern Warfare 2 on Xbox Live. So Eli was playing Modern Warfare 2 using a laptop remotely from the Xbox 360, while the X360 in turn was running Modern Warfare on Xbox Live (two levels of remote indirection). By the way, the original video recording quality is significantly better than what you can see on YouTube as YouTube compresses the heck out of it.