YENRA UDO MIGRATION RECORD
Guide: https://yenra.com/udo-ultra-density-optical-drives/
Worksheet revision: September 16, 2026

Purpose: reconcile one archive collection before retiring its reading environment.
Complete a small representative export first. Keep originals and the catalog until
the archive owner accepts verified copies, retrieval tests and unresolved items.

COLLECTION AND DEPENDENCIES
Collection / owner / scope / inventory date:
Cartridge identifiers / generation / labeled capacity / exact recording type:
Side A volume identifiers / side B volume identifiers:
Drive / library / firmware / host adapter / connection:
Host OS / archive software and version / required application:
Catalog and configuration backup paths / backup method / verification:
Authorized credential or key custodian (do not record secrets here):
License dependency and access arrangements:
Known-good retrieval baseline / date / result:

PILOT EXPORT
Representative objects selected, including unusual names and formats:
Export method / tool version / settings:
Original file and metadata formats:
Any converted files, tool version and retained originals:
Pilot retrieval and interpretation result:

MIGRATION MANIFEST
Manifest path: record source object ID, cartridge/side, relative destination path,
byte count, checksum algorithm/value, metadata location, export date and result.
Expected object count:
Verified object count:
Missing / unreadable / mismatched objects:
Error log / retry log / unresolved-item owner:
Coverage = verified objects / expected objects x 100%, if expected count is nonzero.
Example: 998 verified of 1,000 expected = 99.8%, with two unresolved objects.
Also reconcile bytes and file relationships; a count alone is insufficient.

DESTINATION ACCEPTANCE
Copy 1 location / content verification:
Independent copy 2 location / verification / restore test:
Representative records opened with attachments and metadata:
Application and version used for retrieval:
Access, retention and audit responsibilities assigned to:
Remaining exceptions and recovery decision:
Accepted by / date / scope of acceptance:
Decision for original cartridges, catalog, software and reading hardware:

Generation reference: ECMA-380 specifies 60 GB second-generation UDO media,
30 GB per side. Confirm the exact drive's generation and recording-type support.
https://ecma-international.org/publications-and-standards/standards/ecma-380/