Hello,
It's very difficult to understand Dbx file format. If you want more informations, fallow this link, but i'm not sur that's what you're looking for.
http://oedbx.aroh.de/index.html : Here you will find the structure.
But I think a
vb, or c++, or
vb.net solution would be better. That's why I'm trying too to find a solution with these tools.
If I find something, I 'll tell you.
(Sorry for my english which is very bad

)