Drives Supporting All DVD Writing Standards?

lnxslak asks: "I was asked today to research a viable DVD burning solution. I thought this would be a simple task, little did I know of the horrors waiting me just around the corner. There are 5 different DVD writing standards. DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW. After coming to terms with this I figured I'd just get a drive that does them all. Is there a drive out there that does this, and (hopefully) more ? Have you guys had any experiences positive/negative with various brands? C-Net reviews are great, but I'd like some comments from people that actually know how to use a computer."