If you have an iPod, not iTouch or iPhone you can try this.
This application claims it can read a MacOS formated HD and works with USB
http://www.mediafour.com/products/macdrive/Install the software connect the iPod and try to access it has a HD.
If you succed you can copy the contens from the iPod to the PC
Install iTunes for Windows and from the menu Add Folder, you should have recovered your music.