I can't seem to be able to mount my optical drive. I have tried numerous solutions from this site with no results. I am not able to see the device inside the file browser either. There is a DVD in the drive. I am running 12.04 on an HP g60-235dx portable. I have a link below to the specs. I will also list what I have tried (that I can find back right now.) I know the drive is functioning, because just before Windows 7 crashed and my MBR went fubar I was watching movies just fine. I am fairly new to linux, so don't assume I know anything. Ok, so here is what I have tried:

sudo wget --output-document=/etc/apt/sources.list.d/medibuntu.list http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list
sudo apt-get --quiet update
sudo apt-get --yes --quiet --allow-unauthenticated install medibuntu-keyring
sudo apt-get --quiet update
sudo apt-get install libdvdcss2

dmesg | grep sr0 (no output)

apt-get install libdvdnav4 (already installed, and up to date)

sudo /usr/share/doc/libdvdread4/install-css.sh

ls -l  /dev/cdrom /dev/cdrw /dev/dvd /dev/dvdrw /dev/scd0 /dev/sr0
ls: cannot access /dev/scd0: No such file or directory
lrwxrwxrwx  1 root root      3 Sep 10 03:51 /dev/cdrom -> sr0
lrwxrwxrwx  1 root root      3 Sep 10 03:51 /dev/cdrw -> sr0
lrwxrwxrwx  1 root root      3 Sep 10 03:51 /dev/dvd -> sr0
lrwxrwxrwx  1 root root      3 Sep 10 03:51 /dev/dvdrw -> sr0
brw-rw----+ 1 root cdrom 11, 0 Sep 10 03:51 /dev/sr0


wodim --devices
wodim: Overview of accessible drives (1 found) :
-------------------------------------------------------------------------
 0  dev='/dev/sg1'  rwrw-- : 'TSSTcorp' 'CDDVDW TS-L633M'
-------------------------------------------------------------------------  

sudo lshw optical

 *-cdrom
                description: DVD-RAM writer
                product: CDDVDW TS-L633M
                vendor: TSSTcorp
                physical id: 1
                bus info: scsi@1:0.0.0
                logical name: /dev/cdrom
                logical name: /dev/cdrw
                logical name: /dev/dvd
                logical name: /dev/dvdrw
                logical name: /dev/sr0
                version: 0200
                capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
                configuration: ansiversion=5 status=nodisc


sudo lshw | grep cdrom

*-cdrom
                logical name: /dev/cdrom

Spec sheet for portable:

http://www.cnet.com/laptops/hp-g60-235dx/4507-3121_7-33496192.html

If you need any more information than all of that... please let me know.