make sure your burning the iso as an image. I use (as well as many others) record now max (or even dx) choose image, choose options, choose 2048 dvd and track at once closed (or whatever the first option is make sure its closed) and it should work fine. Let us know how you get on.
stomp recordnow max rocks! I just burn xbox iso's by selecting "burn as a data disc" works every time, using stomp, dont have to adjust anything. also use craxtion or qwix to make the image, theyre the best, xiso sux