[ltp] DVD not working

[Richard Neill]

>> The MATSHITA UJDA745 DVD/CDRW on my refurbished T40 Thinkpad seems 
>> faulty. It will read: CD-RW data discs, audio discs and photo discs.  
>> But it will not read DVDs containing movies which can be read on 
>> another computer running Mandriva 2007. 

Another thought, which may help:
  Put in a commerical DVD, but instead of trying to play the disc, try 
to mount the filesystem. You should find 2 directories named 
VIDEO_SOMETHING_OROTHER and AUDIO_SOMETHING_OROTHER  (sorry - can't 
recall exactly what!).

If you *can* see them => it's a DVD playback problem, either regionset 
or css.

If you can't see them => almost certainly a hardware fault (possibly a 
dirty lens or badly scratched disk though)

Obviously, you'll need linux for this - a nice way to do it is here:
   https://wiki.ubuntu.com/LiveUsbPendrivePersistent

Richard