title: CD/DVD Boot Sector
body: <p>Can anyone explains how CD/DVD Boot Sector works to me? I've extracted some boot sectors from ISO images and found out that some of them are 6 sectors long and some are 8. I tried to look it up but no results. What is the minimum(maximum) length of a CD/DVD boot sector? Does it have to end with 0x55 0xAA?</p>