Not all of them. Some materials were purchased prior to advent of ubiquitous Closed Captioning. While we have made efforts to replace such material with captioned versions, sometimes the materials have not been released in a captioned version or are no longer available at all. If you need accommodations for library owned, non-captioned material, contact us for options.
The Library does not currently purchase physical materials (DVD/Blu-Ray) that do not have Closed Captions, except in rare circumstances where there is a specific curricular need that can be met no other way.