About Video Resolution
Video resolution refers to the number of pixels that can be displayed in each dimension. It is also quoted as width× height; for an instance: “1024 × 768″. In this example 1024 represents the width while 768 shows the height that the display could be resolved in pixels.
Two types of video resolution: Standard Definition (SD) and High Definition (HD). The most common standard resolutions are 640×360 and 640×480 for video, and 720×480 and 720×576 for DVD.