Well, this will drive me crazy now. I know the first one, but I can't come up with a title or composer right now. It will probably come to me in the middle of the night. Don't know the second one.
No, wait, I am pretty sure it is from Shostakovich's Symphony No. 5. It is from the first movment.
The first link is music right out of an anime film called "Galaxy Express 999". Now if the composer borrowed music from a classical piece I don't know.
Well, we all know (at least the three or four of us who listen to Japanese scores) that Masamichi Amano sure likes to help himself to the music of others!
The second one has a Herrmann kind of sounds to it, or almost James Bernard-like.