problems with blu-ray openSUSE 13.1

i have some problems reading the files inside a blu-ray (vlc can’t open it) but MakeMkv can rip me the blu-ray film (ORIGINAL) in a mkv video …
all this when i am log in with normal use…i have Permission Denied error!
with root i have not these problems.

Super-Tux:~ # dmesg | grep sr0
6.452751] sr0: scsi3-mmc drive: 306x/306x writer cd/rw xa/form2 cdda tray
6.453000] sr 3:0:0:0: Attached scsi CD-ROM sr0

Super-Tux:~ # lsmod | grep sr_mod
sr_mod 22411 1
cdrom 46652 1 sr_mod
Super-Tux:~ #

Super-Tux:~ # ls -l /dev/cdrom
lrwxrwxrwx 1 root root 3 Jan 25 17:17 /dev/cdrom -> sr0

Super-Tux:~ # ls -l /dev/sr0
brw-rw-rw-+ 1 root cdrom 11, 0 Jan 25 17:17 /dev/sr0

what can i do ?
thanks
best regards
Andrea Verdi