MPA is an audio file that closely resembles thte audio-only formats like MP2. This audio format is small in size but with minimal quality loss. Technically, MPA files use MPEG-2 compression, which is known to offer small file size with original sound quality. MPA can be opened on most OS platforms and come with a .mpa filename extension.
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MXF (Materia Exchange Format) is an audiovisual container format developed by SMPTE. It contains full metadata and timecode support and is considered as the future standard for audio and video applications. Theoretically, MXF can streamline data between different platforms, like servers and digital cameras.
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SMPTE (Society of Motion Pictures and Television Engineers)