You can't view this video since the owner hasn't set any rights yet.
You can remind him to do so by using the formular at the video's page.
You don't have access to a video marked with a lock symbol because of the owner's access restriction.
Try to login to gain access, or contact the owner using the formular at the video's page.
The symbol in the upper left corner hints to the access level of the video.
Its actual meaning can be found in the tooltip that opens when hovering the video.
The stars in the lower right corner indicate the rating of the users for this video.
They represent a common star rating ranging from one to five stars.
Any user that has view access can rate a video on its detail view.
The date in the lower left corner represents the record date of the video.
A more detailed version containing the actual speaking time can be found in the tooltip.