How to Restart a frozen iPod Classic or iPod Video with the Menu & Center buttons
If you still have one of the older iPods, like the iPod Classic or the iPod Video, then you might have some problems with them freezing up occasionally. If that does happen, this video will show you the quick steps to restarting your Apple iPod by pressing and holding the menu and center buttons. If you this doesn't work, you can try restoring the software via iTunes. If that doesn't fix the frozen iPod, then you'll need to contact Apple or a repair technician.