Creating and Configuring Markers for the Output Media File
You can use the Preview window to add and configure chapter and podcast markers for
the output media file. You can manually add the markers or import a chapter marker list.
Each chapter and podcast marker can be named, have a URL added to it, and have a still
image added as its artwork.
To control the size of the marker images, you can also enter values in the “Fit marker
images within” setting near the bottom of the MPEG-4 Inspector window.
When played, the artwork displays along with the URL (which the viewer can click to
open a web browser to show).
Working with Markers and Poster Frames
for details on adding and configuring
markers in the Preview window.