Yes this is the same hack for multi-regional capabilities.
To make it play all regions, instead of pressing 1 after you see COdE -- on the LED of machine, press 0.
Most machines play RCE discs by doing the exact same procedure as the LG-DVD3200E, but obviously doing a different key sequence on remote according to make of machine, by making the disc think that you are actually in America with a region 1 machine. RCE discs wont work when machine is set for multi-region ie region 0 but when put to region 1 they work fine.