Hello FFMPEG devs and first of all, thank you for your hard work! I've stumbled across this type of MXFs coming from Avid Media Composer, and ffprobe gives following output: https://gist.github.com/Eugeny/2f962ed55d3efbbf004d I've uploaded a sample (1.mxf) at ftp://upload.ffmpeg.org/incoming/ Regards, Eugene