Perhaps add a login and get people (crowdsource) to contribute transcripts/accessibility features until it is deemed OK for public release? I don't know how to incentivize people to contribute though - maybe add their names as credits in the video description?
Seems like early access could potentially be incentive enough, perhaps? I mean, it's a public service that I would think/hope many people would be willing to chip in their time for free (I mean, you take notes when you're in a class, anyway...the very act of writing down what you've heard is an important part of learning for many people). So, sign up for a class, get access while it happens if you agree to help with the transcription and captioning. Progressing to the next video requires either contributing to the transcription or signing off on it. YouTube has incredibly good tools for captioning; perhaps they can be convinced to work with UCB to enable this kind of system.
It would need some kind of percent complete count, or something, along with maybe a rating system where visitors who need those captions can report poor or confusing transcription.
Braille is harder; but, I would think most courses already have written course notes and materials, which can be read by screen readers. I'm not sure what to make of the mention of braille, here, actually. Are they expecting UCB to send out printed materials? That doesn't make sense, and goes beyond what websites are required to do by the ADA.
