Windows Media Video can be played on virtually any computer and also makes very small files.
MP4 of course.
The best way to export a video with a transparent background is to use a video editing software that supports alpha channel transparency, such as Adobe After Effects or Final Cut Pro. You can then export the video in a format that supports transparency, such as the QuickTime Animation codec or the WebM format.
You have to Publish the video first. You can't email it until it is converted to Standard viewing format.
probably AVI
Yes
AVi and mp4 are the best with xvid encoding you can download video converters and video encoders from many sites.
HD Camcorders are the best media format for high quality video. MiniDV is fairly dated, although some people still like using it.
mp4 320*240
The best video format for Macintosh is .MP4,but .AVI or .3GP are also supported by it.
The format is.... GET A LIFE! xD
The format is.... GET A LIFE! xD
The standard format for a student email ending typically includes a closing phrase like "Sincerely," "Best regards," or "Thank you," followed by the student's full name.