Why are their clips in the Wii cases' inside spine?

[zatos]

As the title says, I noticed the cases have clips on the inside spine. Anyone know what is the purpose of these?

 

[mastarecoil]

To hold paper advertisments.

 

[smalien1]

A thingy goes in there if there are ever 2-disc games.

 

[timred]

They hold sd cards/ds games perfectly.

 

[Scorch]

[quote name='timred']They hold sd cards/ds games perfectly.[/quote]

Ha, how bout that, they do.