Amendment 1 - Processed disk records and reproducing equipment

This document constitutes the first amendment to the original standard concerning processed magnetic disc records and copying equipment. It was issued by the International Electrotechnical Commission following the initial publication from 1964. The revision introduces necessary modifications and updates to the technical specifications outlined in the base document to ensure continued relevance and applicability in the field of data storage and reproduction technologies. The content focuses on refining operational parameters, performance criteria, and interface requirements specific to magnetic disc systems and their associated copying mechanisms. By addressing emerging technological trends and addressing practical implementation issues identified since the original release, this amendment aims to maintain consistency across international manufacturing and testing procedures. It serves as a crucial reference for engineers and manufacturers dealing with legacy and contemporary magnetic media systems, ensuring interoperability and safety standards are met without altering the fundamental structure of the main standard. The document remains an essential component of the broader IEC 60098 series, providing targeted updates rather than a complete overhaul of the entire framework.