Look at Plextor Japan (and, apparently, soon Plextor US):
http://www.plextor.jp/pc/products/px...softwares.html
Interestingly this is not the same drive as the 920 Model, that is on the european market. Could it be a Panasonic like the original 900 model? It can, for example write DVD+-R DL @ 8x as opposed to 4x for the 920.