No special rules for me. I love music and prefer quality over quantity. If it is a harsh recording, unless I was at the show and it's the best around I won't ever listen to it, so I really don't want it. I don't care about what kind of disc or anything. I generally use whatever disc are on sale (I'm poor). If you have to have some special disc then I'd be happy to B&P if you need something on my list. Let the trading begin!