I've found that the ANSI switch (-c) is not necessary and adding the -d switch doesn't force the conversion of lowercase filenames to uppercase. My ISO image has no Joliet extensions but works fine and I haven't come across any problems with. This is what I use to create the image: CDIMAGE.EXE -h -n -d -x -o -m -bboot.img -lWINXP xpcd xpcd.iso