I might have fixed: Try new DVD+RW -- mount , and cannot do anything
THEN I did: newfs_udf /dev/rcd0d mount -t udf /dev/cd0a /cdrom to test copy large file to DVD+RW, and delete it. That worked. I will reformat tho old DVD+RW disks. On Mon, Jul 29, 2024 at 3:43 PM Robert Nestor <rnes...@mac.com> wrote: > > It’s been a few years since I played with RW DVD so this may not be correct, > but as I recall they’re basically like flash. New write/deletes basically > revector previously written blocks to new blocks called “sessions” until > there are no more unused blocks on the device OR the last write closes the > session. At this point the DVD becomes RO and can only be restored to be RW > by totally erasing the DVD.