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IS1 Digitised TIFFs do not meet storage and access requirements
Detailed description A important part of digital preservation is the willingness and financial commitment of a memory institution to preserve the data for the long term. Given the time scales in question any cost saving is to be welcomed.

At the BL, as elsewhere, the cost of storing uncompressed TIFFs currently outweighs the risk of replacing these images with a (perhaps) compressed format.

As a side benefit, replacing the TIFF images with alternative representations will facilitate access to the materials - smaller files to manipulate and download and native tool support in browsers and standard OSs.

Access metrics also help to obtain the commitment of the memory institution to preserve data.
Scalability Challenge
The JISC1 collection is high volume (80TB). There are no specific requirements around performance of migration+QA solutions, although it would be desirable to complete processing within weeks rather than months.
Issue champion Peter Cliff (BL)
Other interested parties
Schlarb Sven (ONB)
Possible approaches Migration from TIFF to JPEG2000
Lessons Learned
Training Needs  
Datasets JISC1 19th Century Digitised Newspapers
Solutions SO31 Preservation Grade TIFF to JPEG2000 Migration
qa qa Delete
lsdr lsdr Delete
issue issue Delete
obsolescence obsolescence Delete
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  1. Jun 17, 2016


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