> For the complete documentation index, see [llms.txt](https://pimkb.gitbook.io/pimkb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pimkb.gitbook.io/pimkb/preserving-360-video/preservation-strategies.md).

# Preservation Strategies

## Preservation Preparedness

The following measures, presented in order of increasing ambition, will help ensure long-term access to 360-degree video and prepare for future preservation interventions:

⭐ **Level 1:** 

* Archive a copy of the **360-degree video file** in a suitable [preservation format](/pimkb/preserving-360-video/video-formats.md).
* Ensure **documentation** has been captured describing the video format, including projection format and mono/stereoscopic.

🌟 **Level 2:** 

* Ensure **spatial metadata** has been injected into the file, including the projection format and mono/stereoscopic format used.
* **Identify and test** suitable 360-degree **video player software**, via [XR hardware](/pimkb/preserving-xr-hardware/head-mounted-display.md).

🌠 **Level 3:** 

* Archive a copy of the **source video files** (pre-stitching), production/project files and any dependencies required to access these.