Some of the advanced home security cameras provide distant viewing features that allow remote recording of video to a personal computer over the internet. These features help you to keep a back up of the video on a different PC over the internet to save a copy of the video if the DVR or DVR PC is stolen from your home.
Some of the security camera systems even provide you the facility to view your security cameras distantly from iPhone or a PDA phone. There are two types of remote viewing from an iPhone. The first type of viewing is web based that uses the web browser and give you a view of what is happening on your cameras. This type of viewing is very popular with standalone DVR systems. The second type offers a more advanced viewing that communicates with your PC-Based DVR system.