Long-Term Preservation of Digital Data – The 3rd Seminar Held by the Department of Art Research, Archives and Information Systems
OYAMADA Tomohiro of the Department of Art Research, Archives and Information Systems made a presentation titled Long-Term Preservation of Digital Data on June 27, 2023. With the ongoing digitization of many areas of society and industry, it goes without saying that the long-term preservation of the digital data we produce is critical. Various technological tests have been conducted on the preservation of digital data, and many recording media for long-term preservation are now available. However, we know that many types of recording media and playback devices have disappeared from the market. Therefore, we must say that for long-term preservation of digital data, media management is more necessary than media technology.
In this presentation, the long-term preservation of digital data was examined from both technical and operational perspectives. For technical aspects, Blu-ray Discs, LTO, HDD, and SSD were compared as representative recording media. For operational aspects, the contents of the OAIS reference model, an international standard for the long-term preservation of digital data, were shown. Finally, our own proposal for a long-term preservation system for digital data that would be less burdensome for daily operations was reported and discussed.
The Tokyo National Research Institute for Cultural Properties has created digital data on valuable cultural materials and made it available on its website and other media. To ensure that these digital data can be used forever, we will continue to investigate the preservation of digital data.