Hi Grumpy..
you mean like this?
inverlochwindsurf.org.au/iwc-tarwin-river-mis-adventure/Simples!!!!
We took our GPS tracks and converted them into GPX files.
Then we imported them into Google Earth Pro and created a tour with speeds, height elevations and orientations.
Then we made a movie of the tour
Then we impoerted and edited the movie, adding graphic overlay
Then we converted the movie into mp4
Then we uploaded it
Then we realized we'd wasted a whole evening on it!!!