[nfbcs] Captcha

[David Andrews]

Yes, it is usual.  The letters for the sighted are distorted, so you 
have to figure it out.  If they make it to easy, it is then to easy 
for machines to do.

Dave

At 08:38 AM 2/28/2012, you wrote:
>The hospital I work for is creating a system where patients can see their
>medical records online, and I volunteered to advise them on accessibility,
>so far as I can.  The system is using a captcha during registration.  It
>has an audio version, but it's very hard to understand.  It took me 4
>tries to solve it, although it might have been easier if I'd had
>headphones on.
>Is that usual for audio captchas?  Can anyone give a site where captchas
>are particularly well-handled?
>Thanks.
>Tracy