-Login in eZFlow as admin
-Go to "Setup", "Classes", "Media", and create a copy of the "Windows media" class...
-Edit the Class and input
-Input»
    Name: "HTML5 Video"
    Identifier: "html5_video"
    Object Name Pattern: "<name>"
    Change the "File" [Media] property option
    Name: File
    Identifier: file
    Required: Checked
    Media player type: Html5 Video
-Send for Publishing
- Goto Home page
-Create new folder
  Name: Videos
-Enter "Videos" folder
-Create new "HTML5 Video" media attribute
  Name: MP4
  Description: Testing .mp4 video in HTML5 compatible browsers
  File: Upload an .mp4 file
  Controller: Checked
  Width: 300
  Height: 200
-Send for publishing
-Click "MP4" object
-Validate that the Video has no thumbnail and isn't displayed.
-Validate that you get a message that the IE does not support this feature.
-Validate that the Video has a thumbnail and it's displayed properly.
-Validate that the Video hasn't started on it's own.
-Press "play".
-Validate that the video has both image and sound.