GNOME Bugzilla – Bug 309204
DVDs are not created as UDF filesystems
Last modified: 2008-09-17 13:21:07 UTC
This bug has been opened here: https://bugzilla.ubuntu.com/show_bug.cgi?id=11724 "When creating DVDs the filesystem is created as ISO, just as it should be for a CD. Some DVD players will cope with this, but many will not. It seems like if I am burning a DVD it should use UDF for the filesystem, or perhaps it should have an option. I'm not sure whether this should be considered a bug or a feature request. ... Also consider that iso9660 has size limits around 2 GB or 4 GB. And filename legth limits etc... Just use UDF."
That looks like something that shouldn't be done in nautilus-cd-burner: mkudffs --spartable=2 --media-type=cdrw /dev/scdN mount -o rw,noatime /dev/scdN /mnt/cdrom (From http://fy.chalmers.se/~appro/linux/DVD+RW/#udf) Should this be added to gnome-volume-manager instead? (See bug 145029)
I duped the Ubuntu bug to start as an equivalent of #145029 but the submitter put this comment: "11307 is about adding packet writing support. This bug is about writing DVD compliant DVDs with nautilus-cd-burner. UDF happens to be the filesystem in question in both bugs, but DVD-Video is most definitely not packet-written." He speaks about DVD-Video here, not sure if that applies to data DVDs (mkisofs has a "-udf" option though)
" -udf Include UDF support in the generated filesystem image. UDF sup- port is currently in alpha status and for this reason, it is not possible to create UDF only images. " Not a good idea.
I don't see it as such a bad idea. What it's saying here is that it will create a combined UDF/ISO image (which appears to work just fine on my DVD player (adding the -dvd-video option for mkisofs might be required, I'm not sure). What mkisofs won't do is create a UDF-only (no ISO) image. Obviously it would be preferable if mkisofs had a complete UDF implementation.
http://en.wikipedia.org/wiki/Universal_Disk_Format Since ISO 9660 is fully compatible with UDF capable systems and UDF is not compatible with ISO 9600 only capable systems. I don't think that n-c-b should use UDF.
*** Bug 318292 has been marked as a duplicate of this bug. ***
What's the current state of UDF? The last comment is from 2005.