Batch renames files or folders in a selected directory. File names can be completely changed (incremental number, rename with meta variables), or edited (e.g. change case, prefixed, remove spaces etc.). Can recurse directories, and insert Meta variables like file size, various dates/times and mp3 information (ID3v1 tags, ID3v2 tags and mp3 header information). Useful for making files Internet ready, cleaning mp3 filenames etc. Functions can be preformed individually or at once and include: Remove spaces, Replace spaces with underscore, Uppercase/lowercase filename, Prefix filename, Suffix filename, Catalog files (incremental number), Replace/remove strings, insert dates based on file creation, file modification, file access and the current day, insert image width/height, change extensions, upper/lowercase extensions, insert file size in bytes, KB, MB, GB or closest unit and insert mp3 and header information (bitrate, duration etc).