Using both SMPTE and IRIG-B time codes Is there a way to insert both SMPTE and IRIG-B time codes to a video file? 

I'm asking because I use video for experimental test purposes and having both allows me to track non-video signal along with the video shot during a test. After it can be used to create visual overlays of data on top of the video clip matched in real time.
If the instrumentation code is available as an audio signal (Modulated or Modified Manchester), it can be added as a new track on the video (separate stream in the file). In a multi-track environment it should survive editing etc.