Hi greg and welcome aboard...
Besides Fengtao's DVD Region+CSS Free app, which works great btw, you may be able to use LtnRPC or Kprobe2. They work with most liteons, but I've never used them and I'm not certain about your specific drive.
Anyway, check out: Q: How do I make my drive region-free (RPC-1)?
You also have to deal with the OS and any software, eg., PowerDVD, so take a look here as well:
Hope this helps.