There has been some discussion on other forums about domestic box codes -- referred to as "Villazon decoder". I also saw a thread in CS about Lito Gomez date codes which seems accuarate. The Villazon code worked quite well up to a year or so ago -- I was using it on LGCs -- but it seems to be broken. The last date that I can be sure of is on a box of ERDMs: 1HCQ == Hondaran Colorado Nov. 2005. Anyone have insight on newer codes? I am gettign LGC boxes with codes, for example, 3MK