I'm on my the fifth iPod i've owned, and its giving me more headaches than my shuffles. It is a 5.5 generation full size. I've had it since last thursday. I'm averaging about seven hours of battery life only, and the hard drive makes clicks and hissing noises. Today on my lunch break, the iPod froze (just stopped playing music, the screen remained on and it wouldn't respond to anything). By the time i left the battery drained. Is this worth taking to applecare? My other question is if I get it replaced under applecare, will my warranty remain the same? I don't want to give up my year warranty for a 90 day one because their product was acting up.