I have Adobe Digital Editions version 3.0.86137 installed on a desktop computer running Windows 7 SP 1 and I need to remove several books from my library. Is there any way to do that in a batch instead of removing one by one? I'm talking well over a hundred files that have been updated but not in the library. I need to remove the older files and add the new ones. However when I tried removing just one file and then adding the new one I get a message that the file is already in the library - although it certainly doesn't show up!