Ugh. I hate it when any of my devices make sounds without me explicitly allowing it to, both in principle and on a practical level. (Dear Macbook, please shut the fuck up forever so I don't wake up my girlfriend at night when I boot you up.)

Thanks!

It's kind of ridiculous that I have to dig through a Japanese-language-only website to find a Beta software to simply control the fact that my computer moos like a cow with intestinal distress every time it boots up.

If you mute the computer before rebooting, it doesn't make any noise.

This works in Snow Leopard (and possibly Leopard), but in Tiger it definitely didn't work.

try plugging a headphone jack into the audio-out on your Macbook when booting if you don't want to hear the chime.

This does not work. The headphone/speakers output is software controlled and as such at boot even with the headphones plugged in the chime will sound.

It is not, however, mandatory that they continue to make sounds when they are recording video.