Many people start off with the free CCTV recording software provided by manufacturers such as ACTi or Vivotek, and then later decide that they'd like to add another camera from a different manufacturer.
In particular, we need to find software that plays nicely with a mixture of IP cameras from ACTi, Axis, Sanyo, and Vivotek.
We don't believe that there is a best for all circumstances...
The best CCTV software?