I haven’t tried this yet - but I think this might be relevant to your problem:
Originally Posted by CatsEyes
Hi jm1647, and others,
I popped the drive in my computer (data cable wouldn’t stretch over to the 5005), reset the drive to region free, reinstalled the drive in the 5005, and all is well. The machine now reads and writes DVD+RWs and DVD+Rs, and reads commercial DVDs. Better than new, in fact. And better than endless repairs.
To summarise: the Liteon 1693 drive works fine as a replacement in the 5005. But you will need to set the region code manually, or else use the region free hack, both for drive and system. Because the 1693 isn’t able to go through its region-setting routine unless it’s inserted in a PC.
Many, many thanks to Jm, Mr Horse and others for their sage advice and examples.
This quote comes from the “Drive change ?” thread on the LVW-5005. Do a search on “1693s 5005” and you should find that thread. I am still waiting for my 1693s to arrive to try it myself - but the procedure seems to be to install it on your computer first and then run the LtnRPC utility on the drive to set it as region free (even if you use the “remote code” on your 5005) before you install it. Hope this helps. Please post back as I will be treading this path soon.