Anyone have this problem? It's a 160 gb Ipod classic that's worked fine for the few years I've had it. Then yesterday I go to add a few files and it goes to shit-tried restoring it and nothing. Will synch about halfway then makes a crackling noise inside. Last time I tried it said "Attempting to copy yo the disk failed. MAke sure your cd drive or internet connection is working properly and try again." Any idea how to fix or do I need to just bring it to the store?