Thades, I had the same problem that you're having.... (my post and a reply is further down the chain) I used 4 programs to rip a .cdi image, and put it back together again in a self boot that my december model DC would read.... upon doing that once, I packed up my DC, took it to an independant video game retailer. I took the $85 canadian he gave me for the system and three crappy games, and bought an older model DC... PROBLEM SOLVED
You might want to think about doing that, rather than ripping your hair out trying to get games to work in your system... just a suggestion