I introduce you Visual Renamer, you cannot imagine the amount of renaming methods it can perform. It is unique, apart from the basic features of file renaming software, it can preview what you will get with the possibility to cancel the executed actions. It can rename your karaoke files and also supports THM, EXIF as well as MP3 tags. Moreover, Visual Renamer also offers you several filters to sort your files (automatically or manually. It simplifies your tasks, so do not hesitate to try it! It is a shareware version and compatible with all Windows versions.