Incorrect Parameter Error

I recently had a hard drive failure and lost my itunes and music stored on the old drive. I've tried following the instructions posted to copy files from my IPOD. When I try to drag the MUSIC folder from the IPOD hard drive to my desktop, I get an "incorrect parameter" error message that won't let me copy anything to my hard drive and then to itunes. I also tried importing the files individually in itunes, but that only worked for 4 songs. On top of this problem, I think my IPOD is about to die and won't be around much longer for me to retrieve the music on it. Any help is MUCH appreciated!