We have one DVM 500+ and one DVM 800HD. The 800HD is garbage. The VuVault Software is the most user un-friendly I've dealt with yet. The old Video Manager Software was easier to navigate through and was on a CD. The VuVault Software doesn't come on a CD and is remotely loaded on you desktop or mdt/laptop remotely.
My department might still have the Video Manager Software CD in a file cabinet. It's the original one, not the Video Manager II