Hard Reset and SD Card.


Android Enthusiast
Not the same ol question here. Hard time searching for an answer..

I have a 16Gig card that i used in my moment before my EVO, I didn't format it before i started using it in my EVO and i want to clean it up while doing the Hard reset (hopefully to solve a bat issue and a few bugs from Froyo) I'm wondering if i format the disk is there anything on there (aside from music and pics obviously) that i should keep on there? Functionality wise?