Which is better NVR or DVR? What is the best PoE security camera system?

IP Camera Software can keep eye on your home, office, parking area, or anywhere you have an IP camera.
View video from multiple cameras simultaneously. What ip camera software is the best?
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LaView 4 Channel Full HD 1080P Business and Home Security Camera System 4X Weatherproof Bullet Cameras with 4CH DVR w/ 1TB HDD 2MP Night VisionĀ ...

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