In Photoshop Extended, you can open a video file directly or add video to an open document. When you import video, the image frames are referenced in a video layer.
To open a video file directly, choose File > Open.
To import video into an open document, choose Layer > Video Layers > New Video Layer From File.
You can also open video directly from
Bridge: select a video file and then choose File > Open
With > Adobe Photoshop CS3.