HumanCompiler said:
This depends on how the video creator made the video.  If you get a list of some that are wrong, I can forward them to the content team.
At least
seem to be affected.

The idea of widescreen wideos is nice as almost everybody has a widescreen monitor these days but the current ones just don't work as they're supposed to. A quick check revealed that problem appears in both the silverlight versions and the downloadable ones.