If you would like to provide a visual display of the percentage of the video file that has been downloaded then use the downloadProgress MovieClip. It will be automatically centered placed at the same location as the timeLine and will be stretched to become the same width as the timeLine when the video has completed downloading.Here’s an example of it in action: ( download example FLA )

A few things to know:

• I would suggest using a rectangle - any width - as the shape inside the downloadProgress MovieClip. It will stretch as much as needed without pixelizing.
• Don’t use a stroke on the shape. It will deform in the corners and doesn’t look good.
• The registration point should be x=0 and y = something near 0. You may have to move the shape up or down inside the MovieClip to adjust it’s vertical placement over the timeLine. The video.Maru code will vertically center the downloadProgess bar over the timeLine. Depending on your design it may not end up where you want it.