4-Channel digital video recorders are one of the most amazing inventions to enter the market during the 21st century. It is amazing to think what has developed throughout the last 20 years. When you think about what was available 20 years Dago, you will understand how important it was to have a good camera as an individual, but now there are digital video recorders to help record everything that was going on around your home. People everywhere loved what these cameras were able to do for them. It is a relief to know that if something were to get stolen you would be able to find out exactly what went down and who the perpetrator was.