ISO IEC 29121:2021 pdf download – Information technology — Digitally recorded media for information interchange and storage — Data migration method for optical disks for long-term data storage. 1 Scope This document 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 if data errors are completely corrected before and during the migration and provided copying of the data is allowed. This document...