I have a WinXP laptop and a desktop, both running iTunes 184.108.40.206. After making a backup disk from the laptop to consolidate my library to the desktop, iTunes on the desktop gives me the following error message whenever I try to restore: "The disc "Backup 2007-12-02" cannot be read. An Unknown error occurred (-50)." iTunes won't read the disc, but Windows Explorer on both computers finds data just fine.Please Register or Log in to view images Anyone have an idea of what's going on before I blow my ONE phone call to support for my iPod touch? Thanks.