I first heard the original mix at the end of a famous DJ's mix (can't remember who, unfortunately). It was a very memorable ending!
Back then, and for the longest time, if you downloaded this track from music sharing sites the track itself came with a glitch. At a certain point the track would skip about half a beat. In fact, you can hear that in the first video at around ~6:50.
I don't know if that was fixed for the legal copy from Beatport.