Samsung Cd-rw/dvd Firmware

I Have A Samsung Cd-rw/dvd Rom In My Hp Laptop Ze5345us.
The Model # Is Sn-324f/cma I Can’t Find Out What The Cma Stands For.
And I Can’t Seem To Find Any Firmware For It. Only For The Sn-324f

You should ask the HP support, they are the OEM here.