@karl,
my 2 cents for thanking you for your tenacity and for the politness of your above-enclosed remark in this forum.
My personal standpoint is that RV9 is by far the best format for movies' backup presently available on the net, both in terms of envisable lifespan for the future and of perceivable video'n'sound quality.
I'm glad to keep on reading you here, please take into account that your effort is precious and valuable for some of us - for me, at least
sincerely,
[atx]