What is the moov atom, and why does losing it break your video?
October 1, 2026 · 6 min read · How it works
A plain-English tour of the MP4 file format: ftyp, mdat and moov, and why a missing moov atom makes a perfectly good recording unplayable.
October 1, 2026 · 6 min read · How it works
A plain-English tour of the MP4 file format: ftyp, mdat and moov, and why a missing moov atom makes a perfectly good recording unplayable.