I don't think you messed up, I think dTube doesn't yet compress its videos as well as youTube does. I use industry standard software to make the smallest of mp4s, and some people still can't view it on dTube... So I'm going to try to upload to both if I can...
dTube will catch up soon I think.
My humour gets crazy, I wonder what everyone will think! So far, feedback has been great...
I know, I wonder who ran the DDoS attack?