You can't control who sends you stuff in the mail, can you? Your mail man is going to know your name and where you live, so if all of a sudden you get a package addressed to the dog, he is going to think that's weird. That is why it is counterproductive. You are worrying too much. There are tons of drugs sent in the mail everyday. I wouldn't worry about a small amount of gear. Once you receive the package don't open it for a few days if you are that worried about a CD. There is plausible deniability to a degree. Unless you are already under investigation for something and they are watching you, I would not worry. Are you sure you're not a cop?