Hi David A Nacrelli.
Thanks for posting here in Microsoft Community, I understand that you’re looking for guidance on how to request a VPAT for extended licenses of Windows 10.
You can request a VPAT for Windows 10 extended licenses by downloading the Windows 10 Accessibility Conformance Report (VPAT 2.4) from Microsoft’s Accessibility Compliance website or if you need a formal copy by requesting it through your Microsoft account team or licensing partner.
Also, may I know if this happens with all video files or only specific ones?
If you still needed further assistance or you still have any more question feel free to comment I'll be happy to assist you.
Best regards,
April P.