Well, maybe /dev/sr0 is not your disk drive? lsblk -f should show fs info and the drive. There's no way you could fit actual 3.5G of information on a CD-R. Wha

Well, maybe /dev/sr0 is not your disk drive? lsblk -f should show fs info and the drive. There's no way you could fit actual 3.5G of information on a CD-R. Whatever this is it must be a miscalculation.