Says 54001 instead of 54000 (very minor issue):

Info: Loading TBC input source #3 - Filename: "simonds4_commS_mapdoc.tbc"
Info: Processing input TBC JSON metadata...
Info: Video format is PAL
Info: Determining input TBC disc type and VBI frame range...
Info: Disc type is CAV
Info: VBI frame number range is 1 to 54000
Info: Source has 0IRE at 16384 and 100IRE at 54016
Info: Loading input TBC video data...
Info:
Info: Sources have VBI frame number range of 1 to 54000
Info:
Info: Verifying VBI frame multi-source availablity...
Info: All frames have at least 3 sources available
Info:
Info: Beginning multi-threaded diffDOD processing...
Info: Processing 54000 frames - from VBI frame 1 to 54001
Info: Beginning multi-threaded dropout correction process...
Info: Processing frame 100