Spencer is correct, the zune would have to have a built in powersource that never turned off. This could be a battery or even a capacitor, but at least the old zunes do not have either. the backlight can be ran using a counting program, it can start at 0 everytime it starts counting. As for the 3 days rule, i have no idea, it could start counting and whenever the zune is told to shutoff, it could save the last number and continue when the zune is turned on, but then anytime the zune is off its not counting. Maybe thats why they eliminated the 3 days rule?
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