This screen shot shows the Database Control Media Families page.
In addition to the table described in the surrounding text, this page includes a section called "Media Families" with the following text:
"Media families allow related backup images to be stored on the same media and to have common management policies applied to them. Each backup image is assigned to a Media Family. Only backup images with the same media family can reside on the same volume set."
At the bottom of the page is a section called "Related Links" with links to Devices, Media Servers, and Volumes.
Below the "Related Links" section are links for Database, Setup, Preferences, Help, and Logout.