Start up IsoBuster, Insert a CD or DVD, select the drive (if not selected already) and let IsoBuster mount the media. IsoBuster immediately shows you all the tracks and sessions located on the media, combined with all file-systems that are present. This way you get easy access, just like explorer, to all the files and folders per file-system. Instead of being limited to one file-system that the OS picks for you, you have access to "the complete picture". Access data from older sessions, access data that your OS (e.g. Windows) does not see or hides from you etc.