Hey guys i recently bought the halo 2 collectors edition and i tried playing it on my xbox 360 slim but i cant play it. i just get this message saying "Cant play game. Try downloading the game again." I was also looking around the web to try to find a solution and i saw this post in yahoo answers saying this"some games are not able to play on the xbox 360. like juiced. I have tried both halo 2 regular and halo 2 collectors edition. you can't play the collectors edition because it is not compatible with the system. microsoft made it clear on a lot of games that you can't play. if you want to go technical on trying to get it working, you can download the backwards compatibility ISO from xbox.com and burn it to a disk so you can try seeing if it worked that way. So i was wondering if it actually has anything to do with the disc being from the collectors edition.