Hey, I'm not sure what could be wrong but here's the short version of the story. I burned an ISO file to a DVD+r disc, which I've done before. I used Nero Burning ROM software, and i have the settings that I don't change. And the disc burned without error. I then placed the disc into my xbox and it reads as Unknown. I have done this before and I haven't had this problem. I thought it might be the file itself. Any ideas what could be wrong?