Burning Problems

I need some assistance please. Whenever I go to burn a Xbox 360 Image, I can burn 1 (One) just fine, in either CloneCD or ImgBurn. But If I want to burn another image or another copy of the 1st burn, The programs will lock up at the part where they set the Zone Capacity, where it sets the layer break. So I have to restart my whole computer between each and every burn. Why the heck is that? How do I correct this?

PC: Windows XP x64 Pro
Burner: Lite-On iHAS120.

As a Note: I have not had this problem for long. This only started recently in the last month.