How the hell did they power a 4,000 watt PA system and all of their electrical instruments? With generators?
ANSWER: Yes, generators. There would be no other way. Unless.........THEYRE NOT EVEN IN POMPEII!!!! OOH NOOO!!!!! lol.

Second:
Does anyone know why the key of the songs was moved up a half step? It's annoying to try to play along to Pompeii because of this!
ANSWER: I know exactly what you mean. I hate trying to imitate this video's performance on my standard tuned Fender without having to tune up 1 note/fret higher before hand. Maybe the tape speed is off, which is doubtful really, but still possible.

Third:
What are those things on Nick's drums?
ANSWER: As any drummer would know, these are cheap effective ways to dampen the heads of drums, as to cut down on the resonation, to give a more tight sound, possibly just used for this recording.

these are MY views only.

one more thing, 'A Saucerful of Secrets' never sounded better. i just wish they would have done 'A Pillow of Winds'...(sob sob)

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"I open the door, to an empty room, then I forget."