Example 1: The pupils and stuff on the crystal ponies' eyes aren't rounded. They are octagons/hexagons (I really didn't count the sides, but the point is still there) normal ponies pupils are round.
Example 2: The crystal ponies' manes are slightly metallic/shiny. Normal ponies' manes are like human hair.
Now that you know the differences between the crystal ponies and normal ponies, look at the cover of the new DVD again. Notice anything?
Edited by ~Chaotic Discord~, 20 October 2012 - 01:27 AM.