Video size can often be adjusted using the web browser "view" controls.

   This video may be downloaded for personal viewing
   and for viewing by study groups provided the video
    is not altered and no charge is made for the viewing.
No commercial use of the download is permitted. 

Recent browsers will usually provide for the download.
The download files are found by clicking on the
"Clip Info/Download button" underneath the video player.

Link to Download page

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