What is the difference between SD and SD MMC digital camera memory cards?

I want to buy Kodak C633, and it says SD card, but SD MMC memory, I assume it's just how memory called, but just want to make sure :)

All cameras that can use SD (Secure Digital) cards can also usually use MMC (MultiMedia Cards)...because they are the same physical size.
However, most, if not all people never ever use or think about using MMC.
So, don't worry about MMC....just get an SD card.

i think the difference is in the shape of the actuall card
i have an SD

An MMC Card can be read by SD Card Readers and writers.

Your camera has an SD Card but you can also use SD MMC card memory. This gives you more flexibility. Good luck !!

MMC have an connector extra pin, adds functionality in phones so i'm told...

sd are redaers huni