Ubuntu :: Mounting DVD - No Medium Found

I can not get this DVD to mount for love nor money. It works fine in the crappy Windows POC I just pulled it from to replace a DVD that was doing a similar thing. I'm guessing the last update sent something wonky.

Code: #:/dev$ sudo mount /dev/scd0 /media/cdrom1
mount: /dev/sr0: unknown device
#:/dev$ dmesg | grep dvd
[ 6.485877] sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray fstab .....

The above is stuff that other threads all over the internet seem to ask for with mount related problems but most of it is semi-gibberish to me. I've learned tonight what a mount point is, how to make one, what the columns in fstab is, how to (sort of) use the mount command in the CLI, that I might want to look in dmesg for stuff using grep, that google sometimes has more noise than signal and that I don't want to fix computers for a living.

Errors like mount: no medium found on /dev/sr0 are fairly common too BTW. I'm going spare and spent what should have been a chilled out night of DVD watching getting stressed and digging about in the guts PCs. Had I known it was a hardware problem I would not have bothered changing drives over. There is a disk in the drive and the errors are the same if that is a CD or a DVD.