Short description of MP3 Filename Formatter 5.0.112: MP3 Filename Formatter quickly renames MP3 filenames and sets internal MP3 ID Tags. This tool removes Underbars (" _" ), extra spaces and other unwanted characters from the filename and leaves a nice-looking formatted filename. It has many options including Mass Renaming, Multi-File Tagging, Search and Replace of characters, Auto-Fill-In of Internal ID Tags, and Edit record and repeat options.