A lot of thanks, Nigel. It will help me a lot.
The conversion cannnot be total, because of some limitations of the casio style format (only five tracks and just note-on note-off messages in the tracks), but they sound great on the ctk-691 I have. One of the main problems I have is drum maps conversion, this is the reason I need the feedback of people using the program.
Thanks again
Dídac