Firmware version 1.1 can be a dangerous escapade for iPod Classic owners, as we hear the headphones are getting damaged once the update is installed and the device is turned off. For some reason, the latest update sends electric pulses, up to 500mv, causing a real danger to the users and to their earbuds. I guess you should wait with this update until it gets fixed by Apple. If you ran out of patient and already installed it, you should dowgrade to an earlier version.

[via slashgear]