I just successfully flashed my Benq VAD6038 with the 1.5 IXtreme using Iprep 008. I burned a .mdf using magic iso onto a Memorex DLand was unable to load the disk on my console. I popped in an original Xbox 360 game and it worked fine. Are there specific disks I should be using? Methods of burning?

I've also verified that the iso is stealth using dvdMulleter. Please advise.
~Piga