To insert a video into a dreamweaver document, within the document, you must place the insertion point where you want to insert the video
Insert the video in one of these ways:
Insert – Media – Plug-in – Find and select the video file with mpg or mov extension – OK
In the "Insert" bar click on the "Media" tab – Click on the Plug-in icon – Find and choose the video file (mpg or mov) – OK
To preview the video in the Document window, click the green Play button in the Property inspector. To end the preview click the red Stop button
To remove the video:
Select the video
Press the Delete key.

