Mac sample rate converters!

I know this has been on here already and everyone is quick to jump the gun but. I can't find it anywhere and none of my searches have come up with any significant results....Where can I get a batch file format converter for mac. This is driving me crazy...It shouldn't be this hard to get loops into the mpc...I think it should convert different sr's for you but anyway does anyone have any advice?

if nothing else, itunes can convert them.