Here is small php captcha app: http://tnt.goldnet.ca/captcha/

I would appreciate browser test to make sure the sound plays when you click on the speaker icon. If it does not or if it misbehaves in some way, please do let me know.

This is just a "proof of concept" and actual implementation would need some changes.

To join mp3 sounds I used mp3wrap utility from http://mp3wrap.sourceforge.net/ with slight modifications to remove some unnecessary id3 stuff.

Here is the source:
http://tnt.goldnet.ca/captcha/captcha.tar.gz

Here is modified mp3wrap:
http://tnt.goldnet.ca/captcha/mp3wrap-0.5.src.moded.tar.gz

it didnt work for me with Firefox 1.5.0.7 on Suse 10.1
i tried quite a few times (refresh and F5)

it didnt work for me with Firefox 1.5.0.7 on Suse 10.1
i tried quite a few times (refresh and F5)

What do you use for mp3 plugin?
With firefox 1.5.0.7 and 2.0 and mplayerplug-in works just fine here

mplayerplug-in 3.25

mplayerplug-in 3.25

Thanks for checking. It is odd I have the same here and it works. Any chance your sound is muted :)

no i checked all that already, i am currently reinstallling the plugin

no i checked all that already, i am currently reinstallling the plugin

Please do not waste too much time on this. It was just something i put together and thought i would share it. Maybe someone else downloads it who has more time / energy to improve it.

it still didnt work so i changed it to use realplayer and it didnt work either, its 5am here so it prob something at my end

I updated script in the original post and add examples of suing custom font and changing direction of characters. From here on, only limit is your imagination.