im actually just starting making the "bokashi" myself. its a term that means innoculated compost (or a printing technique with gradiated colors!)
http://www.youtube.com/watch?v=96fSXccQx9Q
the cermamic powder absorbing infrared energy? sounds a bit kooky to me. the EM store has LOTS of cermaic stuff you can buy.
"EM" contains:
http://info.asapsupplier.com/index.php?pageid=478
Im still working on my innoculant, but this first pass just included yogurt culutre and bread yeast. Ive got a Winogradski column set up to isolate Purple Non-Sulfur bacteria......
As for using bran, it may be nice, but im thinking anything with surface area, ive seen some with sawdust, and im not trying to buy a lot of inputs....
Good Luck!