Question 1

How much storage do I need for CCTV?

Accepted Answer

Storage depends on the number of cameras, resolution, frame rate, compression (H.264/H.265), and retention period. A single 2MP camera at 15fps with H.265 uses roughly 7-10GB per day. Use our calculator for precise estimates.

Question 2

H.264 vs H.265 — which saves more storage?

Accepted Answer

H.265 (HEVC) reduces storage by approximately 50% compared to H.264 at the same quality level. Most modern IP cameras support H.265. If your NVR supports it, always use H.265 to cut storage costs in half.

Question 3

How long should I keep CCTV recordings?

Accepted Answer

Typical retention is 30 days for most commercial applications. Some regulations require longer: banks often need 90 days, casinos 6-12 months. Check local laws — GDPR in Europe limits retention to what's necessary.

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