^ because in the clear inner hub of the CD it says this:
6161F4015+01598E07 - THIS IS A PRODISK MADE CODE BECAUSE OF THE PLUS SIGN.
a CMC made MCC-004 will say this: PAPA11KG28054684
also prodisk made MCC-004 will have sans-serif font of lock-open on the top of the packaging where as CMC made MCC-004 will have serif font lock-open font on the top of the cakebox.
In addition, the cmc manufactured ones have a very deep lip on the top of the cakebox compared to the smaller ones from prodisk manufactured ones.
When i bought these two 50 pack cakeboxes from BB yesterday, I didn't realize to look for the differences in packaging.