Grrr. I'm so pee'ed off! I thought I had selected three albums, to update an artist, but selected over half the library. Now every single album has the same artist and title. The library is a huge mess. I'm in a strange situation at the moment. When I open the library on another computer obviously it downloads the changes that I had made, with all the incorrect names. However I know that there are 'Previous iTunes Libraries saved on the computer. Is there any chance to roll back all the 'file' names to that date? Or even update the XML file in a text editor, so that it appears as though the last updated date is newer than whats in iCloud. Really need an iTunes iCloud expert that understands the data files that I can manipulate to trick itunes to change the names back?