(1)  Download and install Gregion from www.gregion.com

Two major features of Gregion we are interested in are:
1) Captures audio and video in perfect sync
2) Has an option to capture at lower resolution than current screen size

Because capturing full-size video is a disk and CPU intensive operation that slows down gameplay. To avoid that, gamers usually play at lower resolution during capture. And they usually hate switching the video modes, playing the game at lower settings and then changing all the settings back.

Fortunately, with Gregion we can play the game at our usual settings, at the same time recording a smaller, smoothly resampled, video.

(2)  Run Gregion

Default settings are usually fine, but some still may need adjustments:
1 - Destination folder where the captured videos are stored. To change it click the little arrow in front of it, then choose Set Output Folder.
2 - Audio playback device. If your video has no audio, but it should have, you may need to adjust this option. (more details)
3 - Size of 50% means the video will be captured at half-size. Ignore the first two numbers ("640x480").
4 - Program preferences. Opens a dialog with more settings, such as video codec, recording hotkey, etc. (more details)

(3)  Start your game

Don't close Gregion. Leave it running so it can do its job. While in the game, press the video recording hotkey (default is Ctrl+F5) to start recording. To stop recording, press it again. You can start and stop recording several times during gameplay. This will produce multiple videos in the destination folder, one for each scene. In this example we recorded several scenes of a stunt race in Trackmania Nations Forever free full game.

(4)  Exit the game

All videos are saved to the "My Documents\Gregion" folder, unless you choose another destination folder. To view your videos click the topmost arrow and choose Open Output Folder.

(5)  Compose the final video

Here's a sample video made with Gregion. We recorded several scenes, added comments, joined them and encoded to a more portable format using VideoMach. To see how we created it click here.