hi all i have a liton cd writer that is ok & a cd rom in seperate tray;s if i replace the cd rom with a dvd writer will i be able to copy dvd onto a 80 min cd ? or will i need to get dvd cd;s to copy onto? if so how much are dvd cd ? . And when you buy a dvd writer do you get software to with it to copy dvd ? many thank;s for your help