I know all of this. In fact. Thank you for asking. Here are 2000 era videos by similar cameras.I infer you believe you have detected signs of manipulation in this video and are considering whether it is poor fakery or deliberate intent to discredit the original.
I presume you appreciate that the various videos made on 9/11 were recorded on video tape, and the investigators would have sought those original tapes and not download copies from YouTube a decade or more later.
I understand fully what you are saying and it is true. We are not dealing with that in my examples.
There is a solid masking line around that building. unbroken. I didnt find this yeaterday and run here with it in my hands.
Halo. Masking. Everywhere. Its not explainable by conversion or compression.
Yes. There are many examples of it being exactly what you said. That wall right there is not one of them.