I have downloaded a copy of window8 ISO(32 bits) from microsoft web.whenever i click it(using NERO) following msg. is appear on screen- "the entered block size doesnot correspond to the image length.the block size may be wrong.do you want to CORRECT the value or IGNORE the problem?" I click on IGNORE option and burn the DVD but there is nothing in DVD except "desktop.ini" file. At present,I m using Window7 ultimate.Kindly help me..........