I created a data disc with the ISO 9660 file system. Why did parts of file names and folder names on the disc changed to underscore _ characters?
ISO 9660 file names and folder names are limited to characters A-Z, numbers 0-9, and an underscore ‘_’. Other special characters are not allowed, and they will be replaced with an underscore ‘_’. To retain special characters in file names and folder names, select the Joliet option in the Burn Disc dialog box.