For discussion’s sake – while I don’t know the specific nature of your videos, my guess is that they might be demonstrating various techniques or other content in which simply hearing the audio of the video wouldn’t deliver the full context of the content. If making that content accessible is something you’d want to do, you’d likely want to start with a written description of what takes place in the video. Beyond that, high contrast vector images or diagrams showcasing specific parts of the technique would certainly help.
Most recently, however, pizza chain Domino's has been brought under suit for their website not being accessible for specialty ordering. The U.S. Supreme Court refused to review the case, instead upholding the decision of the 9th U.S. Circuit Court of Appeals who said the “alleged inaccessibility of Domino’s website and app impedes access to the goods and services of its physical pizza franchises—which are places of public accommodation.”
Any business that is considered a “place of public accommodation” is required to provide equal access to services under the nondiscrimination requirements of Title III of ADA. When you look at the guidelines closely, this includes hotels, entertainment venues, legal and accounting firms, retail stores, and virtually every business that is not a private club, including businesses that exist solely on the web.
I have previous experience with a company that sold a platform to help alleviate ADA compliance issues on websites. From my understanding litigation is being brought to a few industries with it beginning to trickle down into others. Government agencies, education, banking, and law firms were some of the early initiators that were paying more attention to ADA before any lawsuits approached their door.
...the full and equal enjoyment of the goods, services, facilities, or accommodations of any place of "public accommodation" by any person who owns, leases, or operates a place of public accommodation. Public accommodations include most places of lodging (such as inns and hotels), recreation, transportation, education, and dining, along with stores, care providers, and places of public displays.
There are several phases to go through to make a website ADA accessible. First, it is important to have your existing website evaluated for ADA accessibility. Have this evaluation done by a company that specializes in ADA compliance for lodging properties. Most existing websites will not pass a detailed ADA evaluation. Depending on the results of your professional ADA inspection, you will either have to make necessary changes to your existing website, or have it redesigned to meet ADA accessibility guidelines.