The first notable difference is seen in the camera's interlacing. The IP network surveillance camera is at an advantage in this criterion as analog cameras have significant problems with interlacing. High resolution analog camera is not able to capture fast-moving objects and keep the quality of the image because, with in an analog video signal, images are made of lines and all images are created from two interlaced fields. While the analog camera produces blurry images of fast-moving objects, the IP network camera provides crystal clear images because the whole image is captured at one time.

Getting power to an analog camera means hurdling a major obstacle and shelling out a major amount of cash. With the IP network camera, you have an IEEE 802.3af standard PoE (Power over Ethernet), which means that your networking devices get its power from an PoE-enabled switch over a standard cable that transmits data and video. The device offers major savings to IP camera users as the standard in place means all models or equipment are compatible with the device. PoE also gives the camera centralized backup power, so they continue to work even with a power failure.

The analog camera follows the olf NTSC/PAl specifications, which corresponds to 0.4 megapixels at 4CIF. The newer IP Network cameras require a higher megapixel range. The higher the resolution of the camera, the more the detailed the coverage of large areas. The camera's higher resolution also enables essential surveillance functions such as tilt, pan, and zoom.

• Easy to use -- operates like a VCR
• Changing cassettes and rewinding regularly means human error frequently interferes with effectiveness
• Image quality is poor
• Storage tapes wear out over time
• Broadcasting images live isn't practical
• Storage is bulky
• Uses analog recording, recording in low-grade picture quality and inability to search and track easily
• Adding DVR systems must be done in 'blocks' of 16 channels

• IP-based recording means instant transmittal of images anywhere in the world.
• Can monitor multiple cameras from one remote location
• No decrease in recording quality over time or with repeated replays
• Digital picture quality far superior to analog
• IP-base recording is highly compressed for easier storage and can be transported over a variety of media
• Digital images can be encrypted for security purposes
• Updates and add-ons are relatively inexpensive through software packages and Internet computer networking
• Adjustable frame rates
• Remote or shared viewing may be done over the Internet or a wireless connection
• Standard IP video compression techniques are used
• IP surveillance cameras may be added individually or in groups according to your needs