I ran the mkbootdev script to create a bootable USB key, and it worked perfectly. I can boot from the USB key without any problems and I can see the files that the script created on the USB key in Linux and Windows; however, I would like to make the USB key read-write so I can save files on it while running Knoppix. I tried the 'mount -o remount,rw /cdrom; mount --bind /cdrom /mnt/sdb1' instructions listed in http://www.knoppix.net/wiki/Bootable_USB_Key (with the device name changed to match the one listed by Knoppix for my USB key) and it appeared that I was able to write to the device. Unfortunately, when I rebooted my computer it did not recognize the USB device as bootable, and I could not read any of the files in Linux or Windows. Is there a difference between the way the mkbootdev script works and the Bootable_USB_Key instructions that would cause the USB key to be unbootable after writing to it, or am I using the wrong mount commands? Any help would be greatly appreciated.