Oh, I wanted to mention that there seems to have been significant work done as far as open world demo recording sophistication and/or demo file saving speed. And, though I'm not sure if this is an independent change, the efficiency of memory usage while demo recording.

I'm afraid I do not yet have an answer from h2orat. For now you may wish to crop the video using black horizontal bars.

After you use wegame or fraps to grab the video, if your editing program of choice does not support cropping, you can get a free program that lets you do this at http://virtualdub.sourceforge.net/ .
This documentation tells you how to crop: http://www.virtualdub.org/docs_processing.html

You can click Video then Filters, and click Add to apply a null transform filter(null means it does nothing to the video itself)

I'm sorry there isn't a solution for those who wish to capture via 3rd party recorder at this time. If you would like, you may try this(quoted from the documentation):

It would seem there is officially no way to shut off the UI, for those who were waiting for an answer. H2orat replied to me today.

This means that capturing via Fraps/Wegame is an unsupported method for exporting machinima scenes. For this, the guide will be changing to reflect the supported export method. It doesn't mean you are wrong to do it, it only means that you won't be able to hide the UI and it's better we learn the official way now.

Well, it's good to know that we're not just missing a command.

Does the frame-by-frame render also export any kind of synched audio, or will I have to capture the audio on a normal playback and synch it up in an editing program?

i just stumbled across this page by accident, and all i can say is OMG THANKYOU! this is like solid gold!

CoH used to have a demorecord feature and you could actually use commands and make your own videos with input (as opposed to just recording something). Sort of like putting it in a textfile and then running it.

There was one I remember where someone walked up behind ms. Liberty and she got AS'ed.

I can't help put to wonder if this is the same thing.

Yes, people can manipulate the textfile and switch animations, positions, creature ids, and a bunch of other things.

Ohhh, has anyone come up with a details, cause I would <3 to mess with that again. I enjoyed it in CoH.

No public documentation exists yet, but I can say this:

The first half of the text file will typically define the costumes of the entities and grant them numeric labels.

The second half contains positional,animation,and some size data and has a timestamp that I currently do not know enough about, since I do not know how time is measured in the demo environment. Feel free to tamper with the numbers and come up with something wacky.

I feel silly about this but I found the solution to my comic outlining problem appearing in my demos. Even though I have it turned off in the game when I record, they would show up when I play back the demo.

While working on my next video, of course the outlining appeared again, but not on the first playback. I discovered that when you press the f7 key to switch between different graphic card sets, it also turns on all the default graphic options. So I hit the tilde, then typed in options, and the option screen appeared. Then it was a simple matter of clicking on the video tab and turning off the comic outlining.

I hope this helps anyone else. Life is good again....