What are the things you should look for in a digital security system? There are several things to consider before you make a decision.

You need to decide about the picture quality. Screen resolution, compression format, file size and color depth are considerations also but what you should really think about is the subjective video quality.

For some applications the file size is not really very important. Since many DVRs are used in closed systems, either the kind that can stand alone or on their own dedicated networks, The file size is a consideration when you need to move files around on a network and have limited network bandwidth availability. If the DVR is used on a private network it is not an issue but if you are sharing an LAN you may need to think about this.

File size does matter in your digital security system when you start calculating the data storage requirements so that you can determine the number of hard drives you will need. The size of your files also matter if you are using your digital security system to record high activity cameras for long periods of time.

You should think about the platform you will be using with your digital security system. Some are more user-friendly than others and you can find models that are less expensive, smaller and more reliable.

It may be important to implement a digital security system that comes with a good support system. There may be times when you will need the help of a support person in the middle of the night.

Think seriously about your digital security needs.