Use HM Find+Rename to search for files in a folder and its subfolders and to rename or sequential number the found files at once, to format the filenames to upper/lowercase/mixed formatting, or to change file date/time and attributes, quick and easy, using wildcards and regular expressions. The application provides a preview function, an undo function and a comprehensive help function. Often used search/replace patterns can be stored persistently and recalled later via a popup menu. HM Find+Rename is particularly qualified for quick working with a large number of files (for example your JPEG, MPEG or MP3 files collection).