Hello I have a bit of a problem. I Modded my 360 to play backups and have come into some trouble. I have a hitachi 49 drive flashed with iextreme 1.2rev 2 and it plays only some of my backups fine. skate, cod4, half life, and others work fine but some will only load halfway through the intro after the microsoft logo and give me the dirty disc error. I only use verbatims. some burnt at 2.4 and others at 4x (i heard 4x helps sometimes) I recently tried the pot tweak and tweaked it to 2.98 and still no use. i dont want to go any lower burn out the lens. I have also tried the ruber band trick (although since i have a hitachi i added plastic so the button presses earlier) to no avail. I am really scratching my head on this one and lke the title says am in great need of help. anything would be greatly appreciated. p.s. yes all my originals work too. p.p.s. mulletter says everything is patched with the ones that dont work.