WebM.
An open, royalty-free video container designed for the web, typically pairing VP8 or VP9 video with Vorbis or Opus audio. The default output of every browser-based screen recorder.
Why browsers prefer it
No licensing fees, no patent encumbrance, native support in every major browser. Producing MP4 from `MediaRecorder` requires non-default options or post-processing.
Playback in Screendog
Screendog's share page plays WebM (and MP4) inline in the browser, with the transcript and AI notes right next to the video. If you upload a WebM file recorded elsewhere, it plays and transcribes the same way.
Frequently asked
Should I convert to MP4?
Only if a downstream tool requires it. Modern browsers play WebM natively.
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