SMPTE ST 391M PDF

This standard defines operational pattern 1b for the exchange of a MXF file with a single item contained in multiple, synchronized, playable essence containers, each comprising either a single essence element or interleaved essence elements. It defines the operating restrictions, structural metadata objects and individual attributes that shall be applied to the MXF file format specification to achieve interoperability when exchanging an MXF file as a single, continuously playable item comprising a set of synchronized essence containers.

Operational pattern 1b is intended to meet the requirements of acquisition, storage and interchange applications where more than one essence component is required and it is wished to carry these in two or more essence containers. Operational pattern 1b does require the use of body partitions for internal essence containers. Subdivision of each essence container by using body partitions is optional.