Working at a PBS TV station, trying to convert ProRes HD Quicktime files to MXF format for server delivery. I am using the codec flavor for my MXF of XDCAMHD 50 NTSC 60i, working off the format flavor MXF OP1a. We have 2 tracks of audio(Stereo) and the encoded MXF file we make comes out with 8 tracks of audio(4 stereo pairs) but all the pairs only have 1 track of program. Any ideas? We are converting to 24 bit 48000 audio.