David Bowie NIN Work Pix from video on Vimeo.

David Williams, wrote today, shedding some light on the origin of those clips.

This shoot was when Virgin Records was going under and did
not have the money to finish. The footage is lost forever. I was the
editor of record for this project. This concert was probably never paid
for to the production company due to the snafu with the label.

"This footage is not the best quality since
it was never finished and was in the old days before HD." Upon visiting
his Vimeo page, I found that he had uploaded a 39 minute clip that
includes Reptile, Scary Monsters, Subterraneans — well, see for
yourself: