I too used REMC9 and created several mpg files and DVDs for >1 week before getting the MPEG-2 Codec problem. I removed all cookies, went off-line, and wenr thru the same process with the MPEG-2 activation. After waiting 10 minutes for the program to fail to connect to the server, I finally clicked 'Cancel', but never got a key code. I also have gone to the 'activation' website and entered my 20 digit (including 3 dashes) key, but that failed and a message requested a 25 digit code. - - - Any suggestions?
Update: I eventually got an 'Offline Product Activation' - - - then went to http://activation.roxio.com/activateme/ and entered the 25 digit (not counting 4 dashes) "product key", but keep getting a "Try Again" or "Cancel" choice. (I tried with and without the dashes.) Apparently, if I ever get thru to the Roxio servers, I will then be given an "activation key" that may have to be used in another attempt at 'Offline Product Activation'! Any other solutions?