Ok. In the meanwhile I found an extensive discussion on a bug report, here
. It looks like a problem with permissions setting for UDF filesystem (as for many DVD Video and as reported from your mount command). Despite there is still not a solution, some workaround has been suggested.
You can try to modify the relevant line in your /etc/fstab, for example if you have:
/dev/scd0 /media/cdrom1 udf,iso9660 user,noauto,exec,utf8 0 0
in /etc/fstab, try to change the order of the filesystem types:
/dev/scd0 /media/cdrom1 iso9660,udf user,noauto,exec,utf8 0 0
Another user suggested to play the dvd from the command line, using
Regarding the strange user and group ID, it is normal since the DVD structure uses a dummy ID of -1 and 4294967295 is -1 if interpreted as signed 32-bit integer. Hope this helps.