Something's wrong with the hard drive or the system?

I bought a 160gb iPod classic and every time I try to put music on my external hard drive only copy up to 1500 songs and then freezes Itune me and I can not close the program asks me to restore the ipod as manufacturing, and do nothing. I try to close the program and itune will not let me, I try to turn off the computer and I can not shut, I looked to see if the iPod disk errors and says it's okay. I restored it about 8 times and I've put music and videos but I always delete everything. I crushed and Selection Menu to enter the diagnostic system ipod and I put the manual test where I enter the IO and tells me everything is fine. I have already given several Format directly from the Windows 7 and anything either, I always delete everything from passing over 1300 songs and freezes my entire computer. No longer have to think of this company because Apple gives no solution has this issue.

I have read everything I have in other Web pages and believe me now if I have the idea of ​​what happens q as my test result is that my hard disk has many bad sectors and that tells me the hard drive of 160gb Ipod this broke .... Now if someone gives me another solution they are grateful but a million or indicate to someone as I buy the hard drive on the Internet, I mean that it looks and name one that is better than the trash that brings the Ipod.

Retracts: 131

Reallocs: 16368

Pending Sectors: 8

PowerOn Hours: 1004

Start / Stops: 12993

Temp: Current 31c

Temp: 12c Min

Temp: 54c Max

If anyone can help me a lot ... they are grateful I know I can do?

Apologize for my English because I am writing in the Google translator ..