I was lucky enough to find the DVDR 04 at my local Walmart last week and now ready to get the firmware upgrade. I read a post that said one person had great luck by doing the upgrade as soon as he hooked it up. Going to give it a try, but confused as to whether I need the 4x firmware WMEA 1097.E20 or the 8x E30 upgrade. Any help for a newbie?