What is the best CD/Cassette for vocal training you have ever used and gotten the best results from?
I use a vocal coach but I do know there are some good self teaching products out there. The problem is, without a very objective person or a way to record yourself you won't hear what you sound like. If you're serious about your voice then consider a singing teacher. It's a very good idea for protecting your voice too. You can damage your vocal cords by singing wrong.