I have been trying with a new HP Probook, Windows 7 Pro to create a bootable CD with Windows server 2003 Enterprise 64Bit. When I finish burning the CD, and I've done this about 10 times, I get the error above. The probook is 32 bit. I tried extracting various boot sectors and using them with WinISO and Isobuster. I used various programs to burn the CD, Roxio and another that starts with A. No matter what I change, I get the same thing. I put an external CD/DVD burner on the computer and used it to burn it.. Sam. anyone have any ideas or possibly know what the code 4 means?