Creative Speculation

You don't need to "turn up the sound" on real CD videos, unless you want to hear the "low rumbling sound" of the buildings destroying themselves in the collapses that follow the loud explosions:

I have no idea what Chandler thinks a collapsing building should sound like if it's not a "low rumbling sound," but I do know what explosives used in real CDs sound like on videos. You do, too, but you're in denial.

Chandler sneers at Sunder's statement, "This size blast would have produced an incredibly loud sound that was not recorded on videos of the collapse, nor reported by witnesses." But Sunder is exactly right, and since magical silent explosives do not exist, there is no rational reason to think WTC7 was brought down by explosives. The only video Chandler can produce that sounds anything like a loud explosion is the one of the fireman on the phone, and that was shot around 10:30am, nearly 7 hours before WTC7 collapsed. Hard to say what that was -- Chandler's "logic" that all explosions are caused by explosives is on par with his other "scientific" arguments -- but it didn't bring down WTC7, unless it was a magical delayed-action explosive.