*My first script so be nice, please. :)*
Not an incredibly complex script, but useful nonetheless and, shortly, I'll put out alternate versions depending on the software package used.
For those who use DAZ 3D Studio to transfer models and bones to max and then need the model for MotionBuilder, you know your bones need to be re-named for proper character definitions during the characterization phase in MB. Click n' drop and/or manually assigning the right names to MB could be a tedious process.