<p>This speech comprises at least 10 things that are 2+2=5 type situations people do not realize about hard drives. For Example, Data is written in Cylinders on hard drives, all partitions are created on Cylinder Boundaries and that leaves an offset from the end of one partition to the next which leaves a gap between partitions that is unusable or free space at the end of the disk. Since the outer edge of a disk starting at Track 0 is the FASTEST location on the drive, and the first partition is created on a cylinder boundary at the outside edge, then each and every partition you create on the disk is further into the disk on a cylinder boundary. This means the second partition is slower than the first partition due to its location on the disk. So for YOU MAC OSX USERS that created a WINDOW partition on your drive, YOU just installed Windows on the SLOWEST part of your hard drive. If you want to know more, well this is the talk to see!</p>