I have a clean iPod

After collected a few hundred megabytes of songs on my iPod, I decided to backup today. When I try to copy the songs in my iPod using the iTunes software, it doesn't work.

I think may be I can do a sync again. I deleted everything in my iTunes library and do a sync, and hope iTunes copy the songs on iPod to my desktop. No, it doesn't work.

I search internet and read this:

"... iTune disable copy function since version 4.x... you have to use third party software like ephPod or iDump... sync a black iTunes library will erase all songs on iPod..."

I check my iPod, all songs has been deleted. Oh! Great, I lost all my songs, the ratings, and many hours of work, and I have a clean iPod now.

Hei! Apple, what you have done with the iTunes software?

You can't just copy back the songs from the iPod back to your desktop, after you encounter a system crash and re-install your PC.

I heard Apple disable copy function in iTunes to prevent users to copy DRM songs from the iPod device. I though Steve Jobs said that "DRMs haven't worked, and may never work, to halt music piracy,"?