That is one amazing video. The abort occured approx 40 seconds into the take-off run so the aircraft would have been very close to V1.
Interesting to note that the plane only took 20 seconds to stop!
The power was cut exactly half-way along the runway and the aircraft took less than 3000ft to come to a complete stop. It is interesting to see just how quickly these planes can be brought to a halt if the need arises!