Q: iPod 160G not recognized by itunes, frozen

My 160G is frozen on the apple icon, will not fully open, not recognized by itunes. I have let the battery drain a few times and followed the steps to reset it. The last time it did connect to itunes it came up with a prompt that said a file may be corrupted and suggested setting back to factory settings. I didn't have time to do that at the time, and when I came back in an attempt to get it set, it would not recognize the ipod anymore. The battery won't completely drain and other methods to reset it have failed.