[El Gato]

surely you have seen the first video of underside and the the impact as it occured,

I haven't seen that one. Do you have a link?

[XBob]

70 - follow the links in 71, to "Observation on TPS damage", somewhere buried in there in the first 500 posts is the link, posted numbers of times. I think it is on a NASA 'manned spaceflight' program website.

I downloaded it, and still review it regularly, but I neglected to get the link address, unfortunately. But it is/was there.

[XBob]

the name of the 1mb file I have is "ET208Mag.mpeg", and I downloaded it on 5 Feb.

[XBob]

found it.

goto

http://www-pao.ksc.nasa.gov/kscpao/shuttle/countdown/sts107/vidtoc-b.htm

and there are 3 clips:

External Tank Debris Footage
Clip 1, Clip 2, Clip 3