I tried doing mine through my iPod...totally didn't work, lol...the new computer/iTunes kept wanting to wipe my iPod clean. Eventually I had to let it because unless I did, it wouldn't recognize it. I don't know why...but that's besides the point.
I found all my music on my EHD anyhow, so it wasn't such a big deal...I just told it where to look for my music and it found it all.