I was doing some exploring of some of the things I've posted as coursework at OISE/UT and thought I'd refer to a couple of pages here. As much to have ready access to some fairly convoluted URLs, as anything else.
I made a series of tutorials last summer on how to produce multimedia files. Each of these sites has links to step-by-step screen caps of how to make videos.
Each link leads to a site with a "tutorial" for the application named: Adobe Premier, Helix Producer and Windows Media Encoder.
The reason for all of this, was a desire to provide a resource for educators who wanted to use these software applications to create and post files in each of the three types of files (Quick Time, Real, and Window Media) for audiences in the name of accessibility.