UFO video footage - what do you make of this?

A year ago I was sat in my office at home working on my pc when I heard a deep drone sound comming from outside. I initially ignored it but after five minutes or so I decided to take a look. I found myself staring at a glowing red-orange ball which looked very much like a golf ball, with a plasma-effect light eminating from all around the dimples on its surface. Coincidentally, it was about the size of a golf ball held at arms length and seemed to be a mile or so away, although the distance was difficult to estimate without a real point of reference to compare it to. I managed to grab my video camera and film it for several minutes and you can view the footage that I took via the link below. It was completely static, with any movement being due to me fighting to keep the camera still. The image isn't nearly as clear as it was with the naked eye and the colour on the film is white instead of the red-orange that I saw, but if anyone has any ideas as to what it might have been I'd be glad to hear from you.

Here's the LINK

(please note, the file is about 5MB in size and in Windows Media format)