> For the complete documentation index, see [llms.txt](https://assimilate.gitbook.io/live-fx-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://assimilate.gitbook.io/live-fx-documentation/video-playback/playback-h.264-files.md).

# Playback h.264 files

By default, h.264 files may have issues when playing back in Assimilate, but there is a way to ensure they playback correctly.

1. Go To System Settings
2. Click on the Advanced Tab
3. Search for h.264.
4. Select h.264: Number of GPU decoders
5. Make sure it is turned on and enter 0 as the maximum number of decoders.
6. Restart Assimilate