Thanks BZN. You're = bad things can turn out good.
I rebuilt that Matchless 30 years later and sold it only last year.
I also have a 1948 G80 Matchless that I bought from my two door down neighbour when he saw me riding the 55. He had it from new so I am the 2nd owner. It was in a zillion pieces and also took 30 years to get on the road.
I did another trip through Japan this year. I will put up some more videos when I have time. My computer died last week so I need to find the same software I use (don't think I will be able to use it like the old one I had though).
Sorry but can't say I know much about dash cams.