Thank you! You have motivated me. That's huge.

One piece of feedback, though: please make the volume level higher, for future videos? If it's too loud, I can turn it down -- but I can't turn it up beyond maximum volume, which is still too low if there's ambient noise; then I need to get my headphones out.

You can do this in Windows' Movie Maker, it defaults to 50% so you can make it 100%, and if that's not enough you can save it, then load again and it'll again be at 50% (but louder) so you can keep "doubling" it by making louder/saving/reloading/repeat.