You can limit your search results in the Library's catalog by clicking on the options under "Refine My Results" on the left-hand side of the results page.
If, like in the example above, you are looking for a DVD about the history of surgery, you would click on "DVD Videos" under "Resource Type" to see the ten results that are DVDs. You can also click "More options" to see other formats.
You can also limit your results by online or print availability, date, library where the item is located, subject, author, and language, among others. All of these options, when available, will be displayed on the left-hand side of the results page, as shown above.