noooooo please get your facts straight, I know in other latin countries you could hear the difference between the V and B, but most Dominicans MOST not all, don't make a difference when using these letters.
M.A.R.
I have been told by my Argentine teacher that they make the same sound. So, I am passing on that information.
What country are you from? What sounds do your letters make? How slight of a difference is there. Is it very noticable?