The disk on the top is the old SA disk
The disk on the bottom is the new SA disk
Major difference is between X10-14811 next to the UPC code and x10-34855 on the bottom one, and the small copyright date of 2003 vs. 2004 on the good one.
The bottom one has a different X10 number and a copyright of 2004
These are Software assurance disks, yours may look a bit different.