I can hear and feel the hard drive clicking more with this model as compared to my 3G and 4G iPods. I may be noticing it more since I hold it more often (to watch video), but I think there is an objective difference. I hope there's nothing wrong with it, because if I need an exchange I'll have to re-buy the skin (Best Skins Ever), which was tough to apply but worth the effort. The other thing I noticed is that when I select a song, it doesn't always play right away as it did with my 4G iPod. Finally, after the iPod is finished updating, the "do not connect" warning disappears automatically, which never happened with my other iPods. Is all of this normal? Otherwise I love it. If QT Pro's export to iPod format were faster, the process would be perfect!