ISO/IEC 11172-4:1995/COR1:2007

ISO/IEC 11172-4:1995/COR1:2007 is a technical corrigendum linked to the compliance testing requirements for moving-picture and associated-audio coding for digital storage media at up to about 1,5 Mbit/s. It is relevant where engineering teams, test laboratories, and procurement specialists need a reliable compliance reference for ISO/IEC 11172-4:1995/COR1:2007 as part of MPEG-related verification activities. As a corrigendum to the parent document, it supports technical review and documented evaluation rather than serving as a standalone specification.

Overview of ISO/IEC 11172-4:1995/COR1:2007

This document belongs to the ISO/IEC 11172 series and specifically modifies Part 4, which addresses compliance testing. The corrigendum helps users apply the parent compliance-testing framework with improved technical accuracy, which is important for conformity assessment, test planning, and engineering documentation. In practical workflows, it may be used to confirm how testing rules should be interpreted when evaluating coded audio-visual content for digital storage media. For organizations maintaining quality workflows, it supports a more consistent technical assessment process.

Compliance applications of ISO/IEC 11172-4:1995/COR1:2007

ISO/IEC 11172-4:1995/COR1:2007 is typically consulted during laboratory evaluation, product evaluation, and compliance workflows involving MPEG-compatible storage or playback implementations. It is useful when teams need to verify that testing methods and interpretation align with the corrected compliance-testing text in the parent series. Such use may appear in certification preparation, supplier review, and internal validation of media handling systems where operational consistency matters. It can also support technical review of documentation used in regulatory preparation and procurement decisions.

Importance of compliance with ISO/IEC 11172-4:1995/COR1:2007

Using this corrigendum helps reduce the risk of relying on outdated or inconsistent compliance-test interpretations. That matters because testing consistency directly affects interoperability claims, conformity assessment preparation, and quality assurance outcomes. For engineering and compliance teams, the document supports more dependable verification activities and can improve confidence in technical validation results. In procurement and audit contexts, it provides a clearer reference point for documenting how a product or system was assessed against the corrected compliance-testing guidance.

• Supporting corrigendum for the compliance-testing part of the ISO/IEC 11172 series
• Relevant to MPEG-related verification activities and test documentation
• Useful for laboratory evaluation, conformity assessment, and technical review
• Helps maintain consistency in compliance workflows and validation records