DNAS 864 error..

[Spezialize]

Hey guys. Trying to play madden 07 online and I am getting this error
DNAS 864

-864Invalid media, e.g. using CD-R and DVD-R discs against the production server, or using manufactured discs against the development server.

is what it says when I look up the code. How do I fix this?

[PS2Daddy]

you need to use a patching program to get your backup to work search google for ps2 online patcher