I found a sound file online of the Mac startup chime. I changed the name/extension to unlock.caf and ssh'd it onto a theme on my iPod. However, when I turned my iPod on, the file was incredibly quiet. I downloaded the file through Cyberduck from my iPod to my computer, then used Audacity to increase the volume, then put it back on my iPod, and my iPod automatically decreased the volume again. Does anyone know how to make the unlock.caf file louder?