Matshita dvd drive problem

What is the output of:

sudo lshw -C disk; sudo lshw -C drive; lsb_release -a; uname -a

Thanks

  *-cdrom
       description: DVD-RAM writer
       product: DVD-RAM UJ8E0
       vendor: MATSHITA
       physical id: 0.0.0
       bus info: scsi@2:0.0.0
       logical name: /dev/cdrom
       logical name: /dev/sr0
       logical name: /media/nick/8296095
       version: 1.00
       capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
       configuration: ansiversion=5 mount.fstype=udf mount.options=ro,nosuid,nodev,relatime,uid=1000,gid=1000,umask=77,iocharset=utf8 state=mounted status=ready
     *-medium
          physical id: 0
          logical name: /dev/cdrom
          logical name: /media/nick/8296095
          configuration: mount.fstype=udf mount.options=ro,nosuid,nodev,relatime,uid=1000,gid=1000,umask=77,iocharset=utf8 state=mounted
  *-disk
       description: ATA Disk
       product: ST500LT012-9WS14
       vendor: Seagate
       physical id: 0.0.0
       bus info: scsi@5:0.0.0
       logical name: /dev/sda
       version: 0001
       serial: S0VB1C6T
       size: 465GiB (500GB)
       capabilities: partitioned partitioned:dos
       configuration: ansiversion=5 sectorsize=4096 signature=000b553d
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 13.10
Release: 13.10
Codename: saucy
Linux nick-Aspire-E1-772G 3.11.0-15-generic #23-Ubuntu SMP Mon Dec 9 18:17:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

Nick, you should at least reference your previous question...

Here's what I tried already:-
https://answers.launchpad.net/ubuntu/+question/242767

Came across the problems with the drive manufacturer today. Could that be the reason?

 Matshita DVD drives *must* have a region set or they will not authenicate the drive to play a commercial dvd.
Also they will only play com. dvd's from the region the drive is set to

Install regionset, then
With a disc of any sort in the drive open a terminal & go
regionset /dev/sr0

If it shows as not set (user controlled changes resets available: 5) then set to your region
(1 for N. Americac, 2 for europe, anywhee else look up.

Note that dvd drives only allow 5 user sets before being locked at the 5th one so only do once, don't change if you have some dvd's from other regions