To buy or not to buy LG GDR-8163B?

I was going to buy a Lite-On DVD ROM but have had much trouble trying to buy a model I was recommended here in NZ. I cant get a LG GDR-8163B but have read on these pages many people complaining about them!
Am I making a mistake to purchase tomorrow or should I buy something else?:confused:

Don’t they sell Lite-On DVD-ROM drives where selling Lite-On DVD writers?