Robin Hoods Playground

Im trying to make a backup and i keep getting mixed disk when i load it in my 360, im using imgburn, are there any specific settings i need to enter ?

You should be using a Liteon dvd burner flashed with burnermax custom firmware. Make sure you check your backup using abgx prior to burning. Last, if backups are showing as mixed media, maybe your 360 drive is not flashed correctly.