Michel Buechner addressed a metadata quality issue in the MyCoRe-Org/mir repository by refining the JATS to MODS XML transformation process. He implemented an XSLT-based solution that ensures only the first subtitle element is imported during conversion, effectively preventing duplicate subtitles and data inconsistencies in downstream systems. By aligning the fix with the MIR-1469 reference, Michel improved traceability for future audits and streamlined metadata handling for DeepGreen imports. His work demonstrated proficiency in XML transformation and XSLT debugging, resulting in more stable MODS exports and reducing the need for manual data cleanup in subsequent processing stages.