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Hello, I am a beginner in surveillance systems and I bought the following products : NVR Acusense Hikvision DS-7608NXI-I2/8P/4S, DS-2CD2386G2-I - 8mp, DS-2CD2346G2-ISU/SL -4MP. I mention that at the moment the nvr registers continuously. I have some questions: 1. What do you recommend...