[rhraziel]

Does the sound effect at 0:02 remind anyone else of the countermeasure launch sound?

http://www.youtube.com/watch?v=Yy4ogdLO6jw&feature=related

[StarSlayer]

I think its a stock sound that gets quite a lot of mileage, sorta like the stormie scream.  IIRC that particular noise was used in Total Annihilation if I'm not mistaken either as a unit select or a build queue. 

[Mongoose]

The Wilhelm Scream has become a bit of an in-joke among directors.  It's definitely one of the most recognizable stock sound effects out there.

Come to think of it, I was watching some random movie on TV the other day, and I heard a mechanical grinding noise that I know was used in Riven.

[Kolgena]

Heh. Sort of reminds me of how my Halo playthrough was filled with sounds I first heard from Unreal Tournament.

And that Agnus Dei boy soprano from the Credits track in FS2 that gets used in various different contexts.

[Scourge of Ages]

Another common sound is the Terran Academy in Starcraft. http://www.youtube.com/watch?v=B3WimCPUkQY
It's been used lots as well.

[Col. Fishguts]

I always hear the various beeps and clicks from XvT in various films... I think there are CDs full of stock sound effects available out there that get used by movie makers and game studio alike.

[Unknown Target]

Haha yea it sounds just like it. I think I've heard it elsewhere besides FS2 as well.

[Kszyhu]

I've heard FS2's sound of a missile locking on in Total Wipeout, IIRC.

[Destiny]

That CM sound popping up in the Mercedes one is so random it's...funny