: The prefix "NACR" is frequently used in technical schemas and format rules by the Národní archiv (National Archives of the Czech Republic), particularly in their format validation tools for long-term preservation.

: While a paper specific to this file does not exist in the public domain, research into digital archiving for such formats often covers:

If this file is part of a specific or private repository (e.g., a lecture recording or a specific case study), the "long paper" would likely be found in your internal syllabus or institution's library.

: The "-CS" suffix often denotes "Czech" language or "Closed Subtitles" in media metadata.

: Protecting and defending information systems to ensure availability and restoration.

: Regulations for preserving digital objects in state-level repositories.