Blu-ray
The origin of the name “Blu-ray”is not hard to guess: a Blu-ray player uses a blue laser light to read the disk. With a classic DVD and CD, this laser has a red colour.
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Storage capacity
Blu-ray discs (BD) are designed specifically for the capacity of feature films in high resolution: high definition (1080p) or ultra high definition (2160p). With a storage capacity of approximately 25 GB, there is enough room for these types of video files in high quality. It is even possible to write different layers on top of each other, each with a capacity of 75GB. That way one disk can hold over 150 GB. Do you want to etch a family video on a Blu-ray? That is possible! You can overwrite the BD-R (Recordable) and BD-RE (Recordable Erasable) yourself.
Did you know …
… that Blu-ray is not the safest method to preserve data long-term? Neither are CD-R, DVD-R or other variants. Self-written optical discs have a life expectancy of less than 10 years.
More information about Blu-ray discs can be found on Wikipedia and on the Museum of Obsolete Media:
About this website
This website is an initiative set up by meemoo, the Flemish Institute for Archives, supported by the Flemish Government and ERDF. Please do not hesitate to contact us with your comments, questions or recommendations. For more information about meemoo, visit www.meemoo.be/en.
The project won an Archive Achievement Award in October 2019, presented by FIAT/IFTA, within the ‘Excellence in Media Preservation’ category.
