Express Burn Free CD Burning Software is a program that allows users to create and burn audio, video, and data CDs, DVDs, and Blu-ray discs. It supports a wide range of file formats, including MP3, WAV, WMA, OGG, AVI, MP4, WMV, and more. The software also includes advanced features such as the ability to create and manage ISO files, normalize audio levels, and add CD text and metadata. It is compatible with Windows and Mac operating systems.