I know YT have one at: http://www.youtube.com/my_videos_multiupload but it can be pretty time consuming. There was Youtube File Manager, but tried that and it keeps saying incorrect login details even though they are correct. As this was made in 2007, I'm thinking that's why it no longer works. So is there any software which can upload Youtube videos that's a lot easier than using YouTube's? If it can log in to more than 1 account after the other, then even better.