CT, thanks for the information on Dennis Kirk, his cassettes were some of the hardest to find for my library, it took me close to 2 years before I was able to track the last ones down. It's interesting, I'm going to have to go back and try to find that article, because frankly while Dennis has some quality sounds he also has some real poorly recorded dogs. I also heard that he didn't record a lot of his sounds but purchased them from outside sources.