Learn@UW - Type .avi Artifacts Embedded In-Place in e-Portfolio Presentations Don't Play Unless Using Internet Explorer
If you are using a browser other than Internet Explorer to view an ePortfolio presentation, any .avi artifacts embedded in-place on pages don't play.
You see messages flash such as "Connecting" and "Open Media" followed by "Ready" in the lower left corner in an otherwise blank area where the .avi file should play. Right-clicking and selecting "Error Details" pops up the message "Windows Media Player encountered a problem while playing the file."
The error occurs because browsers other than Internet Explorer have dropped native support for .avi files.
As a workaround, if the .avi file is added to a page as a link instead of being embedded in-place, selecting the link plays the file externally in a media player using any supported browser.