I cannot mount a DVD, most probably because it is blank, so it contains no filesystem.
Is there a way to be sure that the disk is blank?
cdrecord -v -minfo.
If you have more than one CD/DVD/BluRay drive, you need to specify a
NOTE: the option
-minfo (media info) has been introduced 12 years ago, so you need to use a halfway recent
cdrecord version to be able to use that option.
See man pages:
A recent version is here: http://sourceforge.net/projects/schilytools/files/ today, the version 2018-12-06 is recent. Just unpack the tar archive and call
make inside at top level.
This worked for me on Ubuntu 18.04 Bionic, may need to be tweaked for others:
alias dstat='/lib/udev/cdrom_id -d /dev/dvd 2>&1 | /bin/grep status' ⏵ dstat hardware reported media status: blank