I am running a late 2011 Macbook pro 2.8 GHZ intel core I7 4GB 1333 MHz DDR3. I am trying to use bootcamp to load Windows 7 for one specific program I need it for. When I get to the section to partition the hard drive and load the windows 7 installer disc that I burnt during the install process I get an error message that it can't read the installer disc. What am I doing wrong. I have tried several times. How big does the disc have to be to burn the installer disc? I am using a 700mb disc.