SOURCE
MXF
Material Exchange Format is the professional container written by Sony XAVC and XDCAM, Canon Cinema EOS, Panasonic P2 and ARRI cameras and by broadcast servers. It usually holds high-bitrate XAVC, AVC-Intra, DNxHD or MPEG-2 video with each microphone channel as a separate PCM track. Consumer players and phones can't open it.