The real value in backing up your files becomes apparent if you lose or damage some files, or need information from a document that has changed a great deal over time. You can restore a single file, several files, or an entire hard drive. Using the Restore Wizard, you can specify which files you want to restore and where you want them to be placed. When you create a backup set, a catalog, or index of the backed up files, is built and stored on the backup medium. When you store the catalog on the backup medium, it speeds up the process when you want to restore the files.