I have an N1 that has never been upgraded (I'm still using the CNDV-40MT ver 1.1 Discs) and I am trying to upgrade to the newest CNDV-80MT Discs. I've searched up and down the forums for a simple answer but couldn't find it... Anyway, My question is this: Can I just get the new CNDV-80MT discs and use them to upgrade from 40MT ALL THE WAY to 80MT? I have downloaded the 80MT discs but they dont work. So I'm assuming one of two things... Either my discs/iso/burn is bad or I am missing an upgrade step such as using the 60MP discs and then upgrade to 80MT. I looked around on ebay and noticed that people are noting the 80MT discs to be MAP UPDATES only... So I'm not sure if that means I need an upgrade between 40MT and 80MT. Can someone please provide a simple answer for me? Thank you all very much!

-Tony

Never mind. I found out that my N1 Lens was dirty, all I had to do was use a lens cleaner on it and it works like a charm now. If anyone is having issues with their navigation and think it might be a bad burn... Try a dvd lens cleaner!!!