Guides
Reference material on video formats, quality and licensing
These are explainers rather than product documentation. They cover the things people tend to look up when they start working with video files seriously — what the formats mean, what a licence actually permits, and why two files with the same resolution can look nothing alike.
Video codecs explained: MP4, WebM, MOV, and when to use each
What a codec actually is, how it differs from a container, and which combination to pick for editing, sharing or archiving.
What “4K” actually means, and why file size varies so much
Two files can both be 4K and differ tenfold in size. Here's what the label covers, what it leaves out, and what to look at instead.
A plain-English guide to Creative Commons licenses for video
The six licences, what each one lets you do, and the conditions people most often get wrong.
How to check whether a video is licensed for download
A practical routine for establishing what you're allowed to do with a video before you do it.
Offline viewing best practices for travel and low-connectivity work
Choosing formats, sizing files to the device, and organising an offline library that still makes sense a month later.
How creators can back up their own uploads
Why the platform copy is not a backup, and how to build an archive that survives both hardware failure and account loss.
Subtitle formats: SRT, VTT, ASS, and how they differ
What each format can express, which players accept them, and how to convert without losing timing or styling.
Bitrate vs resolution: what actually drives video quality
Why a 1080p file can look better than a 4K one, and how the two numbers interact.