That can definitely be the case JM. My dogs can tell the difference between TV and real-life thunder. But Jose` doesn't seem to get the difference between real-life dogs and horses and TV dogs and horses. LOL. He totally growls and grumbles at TV dogs....actually more so than real life ones. But I have heard of other dogs where that CD and the gradual conditioning have helped. So, I would think it's worth a try. I would see if there's any "guarantee" so you can get your money back if it doesn't help. I imagine the CD could be expensive. But I don't know for sure.