With Rename Expert, renaming files and folders is especially easy, particularly for large collections of photos, pictures and music files. For instance you can use the photo taken date, image dimensions, artist or album of your mp3 files for file names. By using action lists, you can freely combine actions such as numbering, replacing, inserting, and moving individual parts of the name and save the lists for future use. Before the renaming takes place, the real-time preview and conflict-checking displays the new name and any existing naming conflicts. Any renaming actions can be undone and previous names can be recovered.