Video Compression Guides
Measured answers to the questions that come up when a video file is too big: what the platform limits really are, which setting to change, and how much quality it costs. Every number here says where it came from.
What 424 Video Compression Jobs Reveal About File-Size Limits
We analyzed 424 real compression jobs: which mode people chose, the sizes they targeted, what completed, and what the data cannot prove. Includes the dataset, method, limitations, and a testable follow-up experiment.
How to Compress a Video Without Losing Quality (2026)
Four levers control video file size, and one of them does most of the work. A practical guide to shrinking a video by 70% or more without a visible difference, with measured numbers.
Video Compression Troubleshooting: Upload, Processing and Download Fixes
Fix failed uploads, stuck compression jobs, expired downloads, unplayable output and wrong file sizes with the next step for each failure.
What Is Video Transcoding? Encoding, Compression & Remuxing
Video transcoding decodes an existing video and encodes it again. Learn when to transcode, when to remux, and what each choice does to quality and file size.
CBR vs. VBR: Which Bitrate Mode Should You Use for Video?
CBR keeps bitrate predictable; VBR spends more bits on complex scenes. Compare quality, file size, streaming, and the best settings for 1080p and 720p video.
Gmail Says 25 MB. It Means About 18. Here's Why Your Video Bounced.
Email attachments are base64-encoded in transit, which inflates them by about 37%. Gmail measures the encoded message, not your file — so a 25 MB video arrives as 34 MB, and what happens next depends on how you sent it.
Discord's File Size Limit Is 20 MB Now — Here's How to Fit Under It
Discord raised the free upload limit from 10 MB to 20 MB in August 2026, and most guides online still say 10. The current numbers, what fits inside them, and why uploads still fail under the cap.
CRF Explained: What Number Should You Actually Use?
We encoded three kinds of footage at six CRF values and measured VMAF on every one. The right CRF depends on what you shot — here is by how much.
Looking for a definition rather than a guide? Try the glossary.