Question 1

How do I estimate video file size?

Accepted Answer

Bitrate × Duration. A 5 Mbps video for 1 hour = 2.25 GB.

Question 2

What bitrate for quality video?

Accepted Answer

1080p: 5-10 Mbps. 4K: 25-50 Mbps. Higher = better quality but larger files.

Question 3

Why is my storage smaller than advertised?

Accepted Answer

Manufacturers use decimal (1 GB = 1 billion bytes). Operating systems often use binary (1 GB = 1.07 billion bytes). This ~7% difference explains 'missing' space.

Question 4

What's the difference between bits and bytes?

Accepted Answer

1 byte = 8 bits. Storage is measured in bytes (GB, TB). Network speeds are usually in bits (Mbps, Gbps). Divide Mbps by 8 to get MBps.

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