I’ve a dumb query

So I’ve a bunch of bodily Xbox video games with recreation instances and out of all of my Xbox one/collection instances solely 2 have completely different disc pegs from the remaining and I used to be questioning if anybody knew why, if they’re official instances, if it simply is dependent upon the yr. The injustice 2 case picture is what majority of the instances seem like and the mk11 is the one which solely has 1 different that appears prefer it, all the pieces else in regards to the instances are an identical