Hi Ive backed up a good few games but most have been under 1gb these are 1)the simpsons road rage(about 300mb) 2)Wallace and Gromit(about 700mb) 3)kung fu chaos(about 400mb) 4)Worms (about 400mb) I have backed these up to one dvd-rw and they all worked perfectly on my xbox But... I decided to back up some other games Like 1)Far Cry (about 2gb) 2)Black(around 2gb) 3)Fable(Around 3gb) But when i burn these to the same disc and my xbox reads them but when i try and play the game i get the dirty disc message Does anyone know why?