I know it's a burden to have all of these come into your care. I too!
But you are lucky to have the videos, which are somewhat special over photos. I have exactly one 2 minute video of my dad. He passed well before everyone had a video of everything. I'm sure he was captured before but this is the only one we have shared with us.
How lovely you have something to share with your siblings as well as your own family. He looked like a loving man. I love how your sisters eye contact with him is.
My best to you as you go on your journey, it's not easy some days is it. You'll always find a bit of your parents in each and every day as you go along - embrace it, it's their way of saying hello.
Thank you for sharing your dad.