Rules: Same as everybody else - honesty is the best policy. Expedient traders are good traders. I have had no real problems with any one type of disc, but please tell me what kind you will be using for our trade and I will do the same. I like Fuji, Sony and TDKs, but I will take others too. I trade disc by disc, not show by show. I like source information and so should you. I trade just audio style, but I can learn about the SHN dimension. Happy hunting and have fun!