There are other types of audio CAPTCHA but they doesn't mean they're any better. I reemmber one that had me type out a random movie quote or something and it wouldn't take just part of the phrase. It was a total pain in the ass and wound up being harder to do than attempting to read the blurry letters. I'm not blind, but I can't always read CAPTCHAs and I thought that might be easier. I guess not.I spent some time trying to figure out what site that was. I thought it was Yahoo!, but they just go for the garbled stuff technique. Then I thought it might've been AOL since I had trouble getting some instant messenger passwords at some point, but that one uses a similar technique only it involves really obnoxious beeping sounds. It made me wanna stop the noises as quickly as possible. Ug. Really, had I felt compelled to stick around, I'm not sure I would've been able to process the relevant information, anyway.The whole thing is pretty frustrating. Having to sift through tons of spam comments is a pain, but there really aren't a lot of viable solutions to the problem.