Is'nt that already covered in the lessons?
Anyway, your question interested me so did a little recall
and research.
The FS9 Flight Video is not a video file, but simply flight parameters recorded at interval and then 'played back'.
If your intent is to creat a video, that would require a video screen capture program, like Fraps, or hardware video capture, and audio recording for voice over. Combine these with video editing program (if you have XP includes Windows Movie Maker which might do the job).
If you looking to create an FS9 lesson type tutorial.....
Looking in FS9 the lessons appear to be generated using 3 files, *.wx, *.flt, and *.abl.;.wx and .flt are the same type files used to 'save flights'.; .flt and .abl are text script files.
As for the voices these are seperate .wav files, called by one of the above, I believe the .abl file.
Looking at the FS9 sdk page there is an 'abl sdk' download.
At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.
