Calmbirthing and HypnoBirthing are not the same programme/thing.

I used HypnoBirthing and highly recommend it. I think you need to start very early and for it to be successful you and your DH or birth support need to be in it together and practice the techniques through out your pregnancy. It also works better if you are in a non-clinical environment and/or lower risk. I used ot for a VBAC in a hospital and there were more obstacles than I was prepared for.

Feel free to PM me if you like.