Good Morning Everyone,

I have a question. I am trying to upgrade my operating system from 4-1/60 to 4-1/91. I downloaded v.29 from this site http://www.megaupload.com/?d=TNC9LTY2 to my desk top. Then unzipped its contents to a cd-r as instructed by a few threads I read. When I insert it into my MK4 dvd drive for my navigation it gives me this message. Invalid cd/dvd for this computer. Do i need to download the software to a dvd since I have a dvd drive where i put my navigation cd into? Can anyone assist. Is there something I am doing wrong?

Many thanks.