You'll do better putting the clips on a web server and then emailing out the URL.
Here is an example:
The camera I used shoots MPEG2. I re-encoded the web-version as a .wmv.
What is this screen you are asking about? You should be able to view it on your computer monitor.
What format is recommended for taking short videos that you can load into your computer and email someone. I would also need to have a screen for viewing as well