On Sat, 5 Feb 2022, Russell Senior wrote:
I think you want something like wodim for writing iso's to optical media, not dd which is more suited to writing to block devices like usb.
Thanks, Russell. It looks like k3b will do the job once the drive is writable. That's the problem: every tool reports the drive is read only. I need to wait for /dev/md0 to finish being prepared before I can reboot and see if then the rw permission for the drive is accepted. Once I get the DVD written I'll make another copy on a USB thumb drive, too. Rich
