This has got to be the greatest burning software of all time. It lets you burn dual-layed DVD-Rs up to 9GB! Ahhh, if only there were a mac version. Anybody see something like this in Mac's future? 
http://www.pinnaclesys.com/ProductPage.asp?Product_ID=1153&Langue_ID=2&SID=199
http://www.pinnaclesys.com/ProductPage.asp?Product_ID=1153&Langue_ID=2&SID=199