I know how to import videos into Mathematica using the FFmpeg packagepackage (Mathematica's built-in import for AVIs rarely ever works for me or anyone, since Mathematica is usually missing the right codecs), and I can then play the videos using ListAnimate. The problem is, when I do that, video compression is lost, and the notebooks become gigantic: For the particular example I am currently working on, I have a .wmf video that's roughly 35MB, but when I import that into Mathematica I end up with a notebook file that's about 775MB. Is there a way to import and animate compressed video formats in Mathematica?
Mind you, the main application I have in mind right now is importing and displaying videos in, say, a Mathematica slideshow, the way I can do that in PowerPoint, say. I'm not interested in saving compressed video externally, unless Mathematica would be able to load and display such videos directly.
Finally, ideally I would like to display just the running videos, with no control elements whatsoever. I haven't figured out how to do this, however. I can display a hide button with the AppearanceElements -> "HideControlsButton" option, but if I hide the controls then the video stops running. AppearanceElements->None on the other hand seems to have no effect.