If you have nothing to show, then don't show it?

[Apeotheosis]

I would have to agree with Pwolf on this one, it has the potential to be extremely effective, but on the other hand, it can probably drive a video into the ground.

For example, take Otohiko's video "The Wasteland". I could definietly picture a long black screen sequence somewhere in there to add to the dark mood, but if you took a video like "Toushi" and slapped a black screen in for 30 seconds, I'd probably think there was some critical editing error that occurred...then I'd most likely chastise the editor with my home-made MS paint images.

[Voices_Of_Ryan]

This is a bit of a selfpromotion, so I'm not going to link it.
But in my "Lost [And Still]" AMV, I had a very large scene with nothing but black (sometimes text would fade in, but still).

Then again, that video had alot of the use of black and white in it so.
There you go.

[Flint the Dwarf]

I'm not talking about the blank space between a fade-out and a fade-in when a phrase is done in the music, but just a straight black (or white) screen while the instruments keep going.

The opposite.

/pointless

[Rozard]

I'm not talking about the blank space between a fade-out and a fade-in when a phrase is done in the music, but just a straight black (or white) screen while the instruments keep going.

The opposite.

/pointless

Aw man, whatever happened to prius?

[Flint the Dwarf]

I don't know, man, I don't know.