ISO/IEC 29121:2018 Standard: Data Migration Method for Optical Discs for Long-Term Storage

ISO/IEC 29121:2018 specifies the data migration method for DVD-R, DVD-RW, DVD-RAM, +R, +RW, CD-R, CD-RW, BD Recordable and BD Rewritable disks for long-term data storage.

By applying this document for information storage, digital data can be migrated to a next new disk without loss from the present disk as long as data errors are completely corrected before and during the migration and provided copying of the data is allowed.

ISO/IEC 29121:2018 specifies:

Data migration method for long-term data storage;
Test methods including test parameters, test area, test drive, disk preparation and test execution;
Initial performance test and a periodic performance test that check a readability of the data recorded on the disks with categorized Maximum Data Error tables; and
Necessity of precaution to reduce the possibility of deterioration in order to assure the integrity of the disks during their use, storage, handling or transportation.

ISO/IEC 29121:2018 offers guidelines to use disks with estimated lifetime of Bmig (B0,000 1) Life which is introduced using B5 Life and B50 Life specified in ISO/IEC 16963.

This third edition cancels and replaces the second edition (ISO/IEC 29121:2013), which has been technically revised.

Main changes compared to previous edition are as follows:

CD-R, CD-RW, BD-Recordable and BD Rewritable disks have been added as the optical disks for long- term data storage applicable in this document, and accordingly, the title of this document has been changed.

Terminologies have been harmonized with those used in ISO/IEC 16963 and relevant updates in the latest version of ISO/IEC 16963 have been reflected.
ISO/IEC 16963 has been moved from the Normative references clause to the Bibliography at publication stage in order to conform to the requirements from the ISO/IEC Directives Part 2.
Minor editorial changes have been made to conform to the latest version of ISO/IEC Directives Part 2.

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