World Conference 2022

Recordings Vol.1

World Conference 2022

The FIAT/IFTA World Conference 2022 was held in Cape Town, South Africa. It was FIAT/IFTA’s first conference in the African continent and the organisation’s first in-person event since the beginning of the COVID-19 pandemic.

To celebrate a World Conference to remember, we will be publishing recordings from a curated selection of the sessions from Cape Town. New videos will be available every Friday until the start of the FIAT/IFTA World Conference 2023.

This week’s presentation was given by Yo Narita from NHK, titled “Our challenges to preserve and to serve UHD contents in various formats”.

World Conference 2022

Watch more sessions from the World Conference Cape Town 2022 page by clicking the button below!

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New recordings every Friday!

Our challenges to preserve and to serve UHD contents in various formats

by Yo Narita

Archives Division, Rights & Archives Management Center, Japan Broadcasting Corporation (NHK)

Our challenges to preserve and to serve UHD contents in various formats

In this presentation, I would like to introduce the best practice of our latest UHD archiving.
Over the past few years, NHK archives have been tackling both technological and managemental issues regarding the preservation of the highest quality content.

NHK Archives has been proud to have one of the most advanced systems in broadcast archives. We have been successful in preserving and serving HD (High Definition/2K) content online, which boosted the use of archival footage in our programs.

As we entered the UHD (Ultra-High Definition/4K and 8K) era, we managed to start archiving UHD playout files on the same online system. The renewal took place in October 2019, about a year after the inauguration of the 4K/8K broadcast.

However, we faced completely new equipment and workflow for UHD production. The higher the quality, the larger and more complex the data. There are a variety of combinations of file formats, color gamut and dynamic ranges. As an archive, playout files are not the only materials that we need to preserve.

Our goal as an archive is to make sure that we preserve all the video materials as well as metadata. That is for re-run, re-production, and in terms of cultural heritages. Then we need to organize them to provide with user-friendly interface and in an efficient workflow. Finally, we need to do all this at a reasonable cost.

To achieve this goal, we have come to adopt realistic approaches to deal with the challenges.

I would like to present some interesting topics and details, including:

  • difficulties and uniqueness of handling UHD footage.
  • how we reached a consensus to preserve unedited UHD footage in LTOs.
  • how we tried to achieve both cost and risk minimization.

We strongly believe sharing our experiences will be valuable for our colleagues in the archiving community.

Yo Narita, System Engineer

2020/9-Present, System Engineer for Archives Information System in Archives Division, Rights & Archives Management Center, NHK
2014/7-2020/9, System project manager for broadcast playout systems in Engineering Administration Department, NHK
2011/5-2014/7, broadcast engineer at Kushiro Station, NHK 2011/4, Joined NHK
2011/3, Received Master’s degree in Information Science and Technology from Hokkaido University, Japan


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