> For the complete documentation index, see [llms.txt](https://docs.castmagic.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.castmagic.io/reference/supported-formats.md).

# Supported Formats

The following file / URL formats are supported:

* `aac`
* `m4a`
* `mp4`
* `mpeg`
* `wav`
* Public YouTube videos

To request another format, please contact <justin@castmagic.io>, thanks!