I'm sorry, but I was almost shouting at the screen when you placed the ice and the lava at the wrong sides. I guess you learned! Haha. Nice Let's Play anyhow.
I've been meaning to start a let's play of my own, but as I said before, my laptop cannot handle that.
It does seem that your videos also have quite a low FPS. When I try to record it guess it would go down to about 15 on a Skyblock, so I guess I could do it.
When I record The Legend of Zelda: Ocarina of Time, it's fine. The FPS is about 50.
I'm also not sure whether I'd have enough space for these.