I have encoded all of the videos using the Miro converter. The videos work in Safari and Internet Explorer fine, but for Firefox I get the error message "The media could not be loaded, either because the server or network failed or because the format is not supported." All the videos are saved in the same place so it shouldn't be a server or network failure, and when I use the free VideoJS script with the Miro WebM encoding all works fine.
Dreamweaver Version 11 Build 4964 Mac OS X 10.6.6 HTML5 Video Ver. 1.0.0 Browsers Tested: Safari 5.0.3 Firefox 3.6.13 Internet Explorer 6-8