> if you want to burn a CD: > 1. do not mount it before. > 2. be sure you do not have an open file manager window to the cdrom > 3. umount the CD, if it is mounted, you can check that with the "mount" command in a shell > $ mount > /dev/hda3 on / type ext3 (rw) > none on /proc type proc (rw) > none on /sys type sysfs (rw) > none on /dev/pts type devpts (rw,gid=5,mode=620) > usbfs on /proc/bus/usb type usbfs (rw) > /dev/hda1 on /boot type ext3 (rw) > none on /dev/shm type tmpfs (rw) > .... > there should not be an entry with iso9660 or udf.. i've tried unmounting it but I get the same error thats it in use by something else. I tried just unmounting it through X and command with the same response. Its like something is mounting it daring boot or something and isnt releasing. Thanks