Creating Accessible Alternatives of Corporate Site

After hearing of the Odeon fiasco in the UK, it's nice to know that it couldn't (shouldn't?) happen in Canada. The Canadian Intellectual Property Office states:

Another category of user to benefit from exceptions is persons with a "perceptual disability." This term refers to someone who has difficulty reading or hearing. Persons with a perceptual disability, or at the request of a person with a perceptual disability, or for a non-profit organization acting for his or her benefit, to copy a work protected by copyright in alternate formats such as braille, talking books or sign language. The exception applies unless a work in an alternate format is already commercially available.

Therefore, if a company has an inaccessible web site, you have the right to create an accessible version of their site. That's my interpretation, anyways.