MXF标准SMPTE ST 377-1提供了描述性元数据方案，如？插件？到MXF头元数据。本指南旨在为MXF描述性元数据方案的使用提供指导。本指南是SMPTE EG 377-3的补充。本指南解释了常见的结构元数据组件，通过这些组件，所有MXF描述性元数据方案都可以与其描述的本质相关。还描述了MXF描述性元数据方案所需的其他约束。本指南描述了如何使用SMPTE ST 377-1中定义的结构元数据将MXF描述性元数据与essence关联。它还描述了如何将MXF描述性元数据编码为KLV数据以用于MXF文件，以及如何将其编码为XML以用于基于文本的元数据交换。 本指南还为实施MXF描述性元数据方案提供了指导。描述性元数据是一个复杂的主题，至少需要对描述性元数据的各种属性以及数据建模技术有一些基本的了解。本指南提供了总结这些主题的附件。

The MXF standard SMPTE ST 377-1 provides for descriptive metadata schemes as?plug-ins?to the MXF header metadata. This guideline is intended to provide guidance for the use of MXF descriptive metadata schemes. This guideline is a supplement to SMPTE EG 377-3.This guideline explains the common structural metadata components by which all MXF descriptive metadata schemes can be related to the essence they describe. Additional constraints required for MXF descriptive metadata schemes are also described.This guideline describes how MXF descriptive metadata is related to the essence using the structural metadata defined in SMPTE ST 377-1. It also describes how MXF descriptive metadata is coded as KLV data for use in MXF files and as XML for text-based metadata exchange. This guideline also provides guidance for implementing MXF descriptive metadata schemes.Descriptive metadata is a complex topic and requires at least some basic understandings of the various attributes of descriptive metadata together with data modeling techniques. This guideline provides annexes that summarize these topics.