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How video actually works

Explainers for the questions underneath the tools. Written to be understood once rather than looked up repeatedly, and honest about the places where the answer genuinely depends.

12 articles across rights, fundamentals, codecs

Rights

Why Some Websites Do Not Allow Video Downloads

The licensing, business and technical reasons behind a missing download button, and what the absence of one actually means.

2 min read

Rights

Creative Commons Video: What the Licences Actually Allow

The six licences, what each condition means in practice, and how to attribute properly so the permission holds.

2 min read

Rights

Public Domain and Copyrighted Content: Telling Them Apart

What public domain actually means, how works get there, and why free to watch is not the same thing at all.

2 min read

Rights

Copyright Basics for Online Video Creators

A plain overview of who owns what, what permission actually means, and the assumptions that get creators into trouble.

3 min read

Fundamentals

Understanding Video Aspect Ratios

Why video is the shape it is, what changed when phones arrived, and how to handle footage that has to fit a frame it was not shot for.

2 min read

Codecs

What Is H.265 (HEVC), and Should You Use It?

Roughly half the file size for the same picture, with real costs attached. When H.265 is the right choice and when it will simply fail to play.

2 min read

Codecs

What Is H.264, and Why Is It Still Everywhere?

The codec that made online video practical, how it works in outline, and why newer and better codecs have not displaced it.

2 min read

Fundamentals

Understanding Video Frame Rates

Why 24, 25, 30 and 60 all exist, where the odd numbers like 29.97 came from, and what changing the rate does to your footage.

3 min read

Fundamentals

How Video File Size Is Calculated

One multiplication decides how big a video is. Here it is, along with the unit confusion that makes files come out different from what people expect.

2 min read

Fundamentals

720p vs 1080p vs 4K: What Actually Changes

A comparison of the three resolutions that matter, in pixels, in file size, and in whether anyone can see the difference.

2 min read

Fundamentals

What Does 1080p Actually Mean?

The number, the letter, and why a 1080p file can still look poor. A short explanation of a term everyone uses and few pick apart.

2 min read

Fundamentals

What Is Video Bitrate, and Why Does It Decide How Good a Video Looks?

Bitrate is the budget an encoder has to describe a picture. Here is what it means, why the same number can be generous or hopeless, and how to judge it.

3 min read