TSCompFolders is a very useful Folder compare utility. You almost certainly have many files with the same name on your computer, CDs, and diskettes. If you wanted to know if they are really copies of the same file, all you can do is look at the file sizes. If they are different, you know the files are different. This is all you can tell. Unfortunately, just because two files have the same time/date stamps or even the same size doesn't mean they are the same. You may also want to move or copy files with the same name back and forth between two places after determining they are different.