OBS Recording Formats: MKV, MP4, MOV and Hybrid
Your OBS recording format affects interruption recovery and whether a file opens in your editor. It is separate from the video codec and quality setting.
For many workflows, MKV or a supported hybrid format is a practical recording choice. Decide based on the editor and upload destination you use, rather than the file extension alone.
Understand container versus codec
A container holds video, audio, and related information. MKV, MP4, and MOV are containers.
A codec is the method used to compress the video or audio. H.264, HEVC, and AV1 are examples of video codecs.
Two MP4 files can contain different codecs. One may work in your editor while the other does not.
Compare the main recording formats
| Format | Main consideration |
|---|---|
| MKV | Resilient to an interrupted recording, but some editors require a different container. |
| Conventional MP4/MOV | Widely useful for editing and delivery, but interruption before finalization can leave the recording unusable. |
| Hybrid MP4/MOV | Combines fragmented writing with normal-file finalization to improve interruption resilience and compatibility. |
| Fragmented MP4/MOV | Designed to remain usable without normal finalization, but compatibility can vary by editing workflow. |
Resilience does not mean a damaged drive or every incomplete file can always be recovered. Keep backups of valuable finished content.
Choose a compatible codec too
H.264 with AAC audio is a widely compatible delivery combination. HEVC and AV1 can offer efficient compression, but hardware, software, and upload support differ.
Hybrid MP4 and Hybrid MOV do not support exactly the same codecs. For example, the OBS hybrid-format guide lists AV1 for Hybrid MP4 and ProRes for Hybrid MOV.
Choose the combination your actual workflow accepts. Do not change a live stream's codec simply because a recording format supports it.
Remux when only the container needs changing
Open File → Remux Recordings, select a compatible recording, and create the required output copy.
Remuxing repackages the existing streams. It does not re-encode AV1 into H.264, fix distorted audio, or improve the picture. If the editor cannot decode the original codec, a different container may not solve the problem.
Keep the original until you have opened and checked the new copy.
Test before choosing a permanent workflow
Record a short sample with the intended format, encoder, and audio tracks. Open it in the editor, export a small finished file, and test the destination's upload process.
That complete check is more useful than assuming the default format or a familiar extension will work everywhere.