Hi Guys,

This is really interesting sound file I came across. It is the best surround sound I have ever heard.
In fact, it is not 5.1 Surround, but it is recorded using 2 channel mono recording technique. The process is called binaural recording. Check out more information here

Now recommended you listen to this clip using a good earphone or headphone with your eyes closed

Enjoy

Cheers,
Ifthikar Ali