If you are trying to play a video in the Firefox browser but receive a Video format or MIME type is not supported error message on the player, these solutions are ...

A MIME header associated with an executable attachment is modified to the type that IE does not handle properly, which causes it to be executed automatically. Such bugs are corrected with a patch ...

Mime is the art of demonstrating an action with an object that doesn’t exist. It’s a very disciplined and precise act. The actor must pay real attention to detail for it to be effective.