Quick File Rename + MP3 Rename - Version 3.0 Quick File Rename allows you to rename multiple files at once, just by dragging and dropping from an explorer window. It allows you to change the first letter to uppercase, change all letters to uppercase or lowercase, change the file extension, and advanced options which allow you to replace certain characters of your choice, the concatenation of characters, and the removal of characters.NEW in this version are advanced features such as Undo, Real-time Preview, DOS 8.3 file convert, file rename using wildcards, file mask, mixed case rename and many more!Supports smart MP3 Renaming as well as ID3 tagging too.