Cataphract,
I have the same enclosure:
http://www.byteccusa.com/product/enclosure/ME-320.htm
I use it with a LG 4040B dvdr unit and Fujitsu P5010D notebook via both USB2 and Firewire with no problems. I set the IDE jumper at "CS" for auto select with no problems. I did not try the "master" or "slave" settings.
The LG 4040B performs like a champ via the enclosure. Please note that this combo unit come with a 6 pin - to 6 pin firewire cable. You will need a 6 pin - to 4 pin firewire cable for use with most Notebooks (you can check this on your laptop).
Sabesh.