Internet viewing resolution uses CIF (Common Intermediate Format) as a measurement unit. It defines a video sequence with a resolution such as 352 X 288 that maybe converted for viewing in PAL or NTSC formats. Confused? Let us try that again. Your camera captures an image at a certain rate called frames per second. The CIF resolution refers to how your DVR records this image or sequence of images. In a nascent hard drive or hard disk industry, storage was expensive. Naturally, people preferred to compromise and capture low-resolution images by sacrificing 4 CIF and maximum frame rate. With video storage turning cost efficient, you can now capture images on 4 CIF and get maximum detail. As the name suggests, 4CIF offers almost 4 times the size of the image and is especially beneficial in places such as front desks, doorways, bank operations, and so on, for facial recognition and clarity in images. In other areas, where you prefer fluid action and no lapse in capture of movements, you may resort to CIF while recording.