The ultimate in choice. Watch what you want, when you want it without any of the programming hassles. That's the attraction of digital video recording. Don't throw out your VCR yet, but definitely make room in your entertainment center for a DVD based digital video recorder or one step up, a personal video recorder (PVR). PVR and DVR are both used to describe hard drive based digital video recorders. In this report we will call all hard drive based digital video recorders PVRs.