JangoMail has expanded the Image Library so that you can now upload Quicktime .MOV files. Once stored, you may create links in your messages that reference the hosted files much as you would a PDF or other non-image file.
JPG and GIF files remain the only image file types that are recognized by the HTML Editor's Insert Image function because they are the file types that are viewable across most HTML-capable e-mail clients.
Other file types are accepted into the library for hosting. Our tutorial on linking to hosted files (PDFs and others) can be downloaded here.