Best Tool or Program

[-Jumong-]

Im not really a web guy but i am trying to learn i saw on some discussion that flash is already obsolete, i saw now that some are using video like on their website headers, i wanna know whats the best tool to use on this kind of things this is the sample header i saw on one game

http://gamezaion.com/templates/eoe/img/header.webm

whats the best program to create this kind of video to be used on game websites like this?