I would also like to make two notes.
When you tell fraps to half-size the video, you are also losing quality and performance from if you were to record at full size, and then later resize it in a video editing program, this is because fraps needs to resize the video on the fly, and it's resizing method is not as clean as video editing software. Fraps will create a more pixilated and messier resize than if you were to use video editing software.
Doing half-size on newer systems won't give that much of a performance hit over full size(hardly noticable), but on older slower systems it can help if your system takes too big of a performance hit.
And checking the "no sync" box should make it so that the video will capture at 30fps, but it won't force the game to sync down to 30fps, allowing the game's fps and the video recording fps to be different.
