The next entry, Capturing Frames to Video, starts collecting single frames into a video file. The desired frames of the video signal are captured with Capture Frame to Video. Capturing is stopped by selecting Capturing Frames to Video a second time. (Both video capture modes, "continuous" and "single frame", go to the video file.)
Single frames are captured by selecting Capture Frame, they go to the frame file.
With Video for Windows, there are a few dialogs available to manipulate capturing. First, there's the Audio Format, basically to select the quality of the audio capture: sampling frequency, sample size, mono or stereo channels.
The Video Format is a dialog of the drivers for selecting the picture size of the captured frames and video. Video Source gives you access to some picture quality controls such as brightness, contrast, color intensity. Video Display sets other features of the preview/overlay display. Video compression selects one of the video codecs (enCOder/DECoder) available to compress the video frames before writing them into the video file. The list of codecs also appears in Windows' multimedia settings (Advanced -> Video Compression Codecs). And for video settings not handled by other dialogs, there's the Other Video Settings dialog. It contains the maximum of frames to capture into the video file. Audio capturing can be enabled here, and if audio is captured, the synchronization between the audio channel and the video channel can be selected.
When capturing both audio and video, the resulting data are two streams (of sound data and video data,) which can be stored in the video file independently, or they can be selected to be synchronized. This synchronization process can affect either the sampling frequency of the audio capture or the frame rate of the video capture, depending on the driver and device.
Note: Depending on the driver, some or all of these setting dialogs might not be available.