Help finding concert CD's

[EPFAN1972]

Hello, I am very new to all this import stuff. There are several concert CD's that I want to purchase, such as Richmond 72. But I don't know where to begin. It seems as though many talk in code about where to go to make purchases. Or they will mention someone's name and I have no way of knowing who that is. With that said is there anyone who can help a new guy out and help me locate a place to purchase concert cd's. Thanks for your patience with me. I've been a fan for 50 years and this is a whole new world to me. Thanks for your time.