They weren't made illegal. The lectures were inaccessible to deaf people. Given that they were created with public funds, that's not acceptable. Berkley decided to throw them away rather than remedy this, in a rather short sighted move reminiscent of cutting off one's nose to spite their face.
To those that are preserving/mirroring these lectures, I really hope you have plans to make them accessible to all, not just the hearing enabled.
To those that are preserving/mirroring these lectures, I really hope you have plans to make them accessible to all, not just the hearing enabled.