It might be the version of the game you have. Which version is it and maybe mine does not load the DBC file properly.
Its a thought, will try the larger file later
FYI - I am running Win 7 x64 and other DBC files do work but not this particular CM0102 DBC file.
Opening in Editor also shows no changes. I was planning on running AC Milan and the thread states that changes were made to the team.
I followed your instructions by loading the DBC file into the editor folder and started a new game and selected Change Editor Files and checked the CM0102 dbc only and hit CONFIRM. After game was built, I had the original FM2012 12.0.0 database.
Thoughts?