A DVD is usually much more affordable for the library to purchase (and own permanently) than to license or purchase online streaming rights. DVDs can be much more cost effective in one of the following circumstances:
A video is to be shown during class time in a physical classroom.
A video is to be shown to an online course via Zoom during a scheduled class meeting time.
A video may be streamed via Electronic Reserves under Fair Use if:
Students visit the library to physically check out and watch a DVD on Library Reserves.
Instructors want a back-up for:
If you have a legally purchased DVD (your personal property or checked out from the Library), playing the DVD on your computer and sharing your screen via Zoom falls within copyright Fair Use under the following conditions:
Streaming Non-DVD Video Content via Zoom
While DVDs will work for screen sharing, most streaming services--Netflix, Hulu, Amazon Prime, Disney+, etc.--are often set up to detect screen-sharing software and will automatically disable that ability. Free video sharing websites like YouTube and Vimeo can be screened over Zoom, and they can also be shared/embedded within your LMS (Sakai/Canvas).
DVDs will work for screen sharing, but streaming services may be able to detect the screen share and disable that ability (So Netflix/Hulu may not work due to their technology). While Netflix and other services may have terms of service that disallow screen sharing, there is no market harm from this activity if there is no time or ability to negotiate public display rights with the vendor.