If you haven't heard of them they're pretty cool. This lady can understand what each cry a baby makes is and teaches you about them so you can more easily tell what your baby needs. My SIL swears by it so she let me borrow her dvds. We watched them last night and so far it's really working. Just thought I'd pass that info along to those who haven't heard of it and want to try it out!
Re: Dunston Baby Language DVDs
The hunger and sleep cry sounds helped us a ton. She doesn't make the gas one so that particular cry didn't help us. Pretty cool.