This is correct; if the disc specifies permissions, they are used. You appear to have a brain dead recorder that specifies the wrong permissions. As you noted, you will need to override the permissions to work around this, but it is not intended that permissions never be used by default.
** Changed in: util-linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1674164 Title: DVDs with restricted permissions are unreadable for normal user (regression?) Status in util-linux package in Ubuntu: Invalid Bug description: I'm using 16.10. I have a DVD with strange permissions for the root folder: michele@cassandra:~$ ls -l /media/michele total 2 d--x--x--- 3 michele michele 88 gen 1 2004 SONY_DVD_RECORDER_VOLUME The DVD is readable e.g. on windows but with ubuntu while I can access it as root: root@cassandra:~# ls -l /media/michele/SONY_DVD_RECORDER_VOLUME/ total 4 dr-xr-xr-x 2 michele michele 3628 gen 1 2004 VIDEO_TS I cannot as the non-root user that is logged in when I insert the disk: michele@cassandra:~$ ls -l /media/michele/SONY_DVD_RECORDER_VOLUME ls: cannot open directory '/media/michele/SONY_DVD_RECORDER_VOLUME': Permission denied Looking at the mount options it seems to me that this is a regression for bug #10550. The options used by udisks2 are: root@cassandra:~# mount |grep SONY /dev/sr0 on /media/michele/SONY_DVD_RECORDER_VOLUME type udf (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,uhelper=udisks2) while my understanding from bug #10550 is that I should have also mode=0777 and dmode=0777 And indeed this works: root@cassandra:~# mount -t udf -o ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,uhelper=udisks2,mode=0777,dmode=0777 /dev/sr0 ~michele/z michele@cassandra:~$ ls -l ~michele/z total 4 drwxrwxrwx 2 michele michele 3628 gen 1 2004 VIDEO_TS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1674164/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp