Once upon a time I brought a blank tape with me to the cardologist's office when I knew I was probably going to get an echo during my visit....
"A short time later" I brought the tape again and got another copy of the echo. Now I had two seperate exams done several months (years?) apart...
"Not long after that" I brought the tape with me to Cleveland Clinic when I went for my transplant evaluation....
Good thing too, because they had no basis on which to judge what they were looking at, no idea what my heart looked like BEFORE my tricuspid valve tanked and they wanted to know. I let them borrow my tape. =)
I don't understand a whole lot of what they're doing during an echo as far as how to read flow levels and measurements and such, however I do know enough to figure out the structures of the heart. In mine, the artificial valve kinda sticks out like a sore thumb!
There's a kind of art to how they do these things. A lot of what they're judging is based on educated guesses and previous experience and I wouldn't be suprised that one doctor says "moderate" while another says "severe" because it's kind of a subjective opinion... I think they also base it on how well your heart (and the rest of your body) seems to tolerate the problem, what other symptoms are present.
I had severe regurgitation for several months prior to my surgery, in part because you could SEE the veins buldging from my neck every time my heart beat.
You should be able to get copies of the reports and maybe even a copy of the tape (though usually that's just for the novelty of it, before VCR's were so popular they might offer little black and white photo stills. Modern machines can still do this by the way.)