Apple recently released iPod classic Firmware 1.1.1, which appears to fix a problem where an audible hiss was apparent when the unit was turned off. Some users have speculated that the hiss was a byproduct of a feature that allowed the classic to wake from sleep upon insertion of headphones; that feature no longer works in 1.1.1. Other users have complained of audio still being audible even when the volume is set to zero (an issue that pre-dates this?

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