No offense, but I have seen many people use this video (or something similar) to convince others that any earphones/headphones are good enough for surround. Yes, you can tell which direction the sounds are coming from as long as you are using a stereo earphones/headphones, but these videos are recorded using an expensive dummy head and specialised microphones to mimic how the human ears hear. I believe most games do not use this technique to record their effects/sound tracks, so I believe this argument is invalid.