Ursprünglicher Beitrag von: Ben Eisenman ,
Unfortunately, there is no distinction in model number between the thick and thin 160 GB Classics. The best way I have found to distinguish them without opening it up is to do the following: # Locate the serial etched on the rear panel of the iPod. # Go to Apple's [https://selfsolve.apple.com/GetWarranty.do|Online Service Assistant] and enter your serial number and country. # Look at the text under the picture on the left. If it reads "iPod Classic," you have the thick version. If it reads "iPod Classic (Late 2009)," you have the thin version. Good luck!