本文件定义了视听材料交换用材料交换格式（MXF）的数据结构。它定义了网络传输的数据结构，可用于存储介质。本文档未定义MXF兼容设备的内部存储格式。该文档定义了MXF文件规范的所有组件，包括文件头、文件正文和文件页脚中的所有组件。它定义了文件中分区的应用程序，这些分区提供了有价值的功能，例如MXF文件满足许多应用程序需求的能力，以及部分接收文件的恢复。 该文档还定义了文件结构的关键功能，包括分区包、结构元数据、初级包、随机索引包和索引表。该文档既没有定义Essence容器，也没有定义描述性元数据。相反，它定义了这些组件作为插件添加到MXF文件的要求。

This document defines the data structure of the Material Exchange Format (MXF) for the interchange of audio-visual material. It defines the data structure for network transport and may be used on storage media. This document does not define internal storage formats for MXF compliant devices.The document defines all the components of the MXF file specification including all those in the File Header, File Body and File Footer. It defines the application of Partitions in the file that provide valuable features such as the ability for an MXF file to serve many application requirements and recovery of partially received files. The document also defines key features of the file structure including the Partition Packs, the Structural Metadata, the Primer Pack, the Random Index Pack and Index Tables.The document does not define either the Essence Container or the Descriptive Metadata. Instead, it defines the requirements for these components to be added as a plug-in to an MXF file.