My 30GB zune freezes up

MORE INFORMATION loadTOCNode(1, 'moreinformation');To restart the Zune device, follow these steps: 1. Set the Hold switch to the unlocked position. Note To make sure that the Hold switch is in the unlocked position, you may have to move the switch back and forth until the switch is in the correct position.
2. Press and hold the Back button while you press the top of the Zune pad.

listen to the zune's hard drive when you are switching between songs. if it spins but makes a repetitive read access pattern (tic tic tic trrrg), the HDD is broken. if it spins fine, either the hard drive of the motherboard may be broken. it's usually the hard drive that causes this. there is a zune repair tutorial online that gives you an idea on how to do the replacement yourself parts are on ebay.