So i downloaded a WAW Motion Flex v2.1 iso with motion flex already set up for installing. All i had to do was burn to a dvd. so i burned with 2.4x onto a memorex+r DL then hotswapped,

But i had a problem, when it ran it just said "this is a xbox 360 game please insert to an xbox 360" what did i do wrong? is it something to do with the MEMOREX Dvd? do i need to get another type of Dual Layer?

P.S don't rage for spelling errors, I just wanted to type this fast so i can get some possible answers..... ALSO COULD I RETURN THE MEMOREX ONES IF THEY ARE THE PROBLEM I ONLY USED 1 DVD, and i bought the 25 pack for $40, so i dont want to waste they money....