Nearly 225 years ago, Benjamin Franklin wrote, “In this world, nothing can be said to be certain but death and taxes.” Chances are, if Mr. Franklin were around today, he might add a third item to that list: the constant — and rapid — advancement of technology.

Any discussion of advances in security video technologies has to start with resolution. It also has to end with resolution. When you think about it, each new wave of higher-capacity hard drives, video compression algorithms and other technologies are introduced specifically to deal with the challenges presented by HD and megapixel video.