Two things related to inserting URLs to post MP4s....
Lately I've been putting MP4's in our web space and then inserting their URL in the "insert/edit media" field in the toolbar.
(1) Why is the default dimension 300x150 ? That's tiny.
So I set it to something like 600 x 400 and it seems to fill the field nicely. (I really don't know the dimensions of some of the videos, and does the dimension include the 'play' toolbar with it? Or is that "in addition to" the dimension of the video clip?)
(2) When I insert a video, the EMAIL notification of that post is BLANK where the video is supposed to be. This has led some to think I posted nothing and they have received blank message. Like to suggest a placeholder graphic or text.
Other than that, we're fat, dumb and happy.