Listen to your brother long enough and you will find out what interests him. Ask him what he wants for Christmas. He isn't going to be like you because the media and the world has changed so much due to the internet, but also because you are different people. Look for commonalities between the two of you. Plenty of people that I love and respect HATE the music I enjoy.
There is a tendency to look at everything as the "good old days" as you age, but it doesn't do any good and really doesn't help to build a rapport with anyone but other people who want to talk about the good old days.
Yes, I know I'm being a cranky old man to a certain degree, but I'm trying not to. I guess I'm just trying to get a sense of what's important to young people these days. There doesn't seem to be the same sort of social stratification though, which gave me a lot of my identity at the time, like there were Punks and Goths and Hippies and Ravers or whatever. It seems to me that things are a lot more mixed and I guess that's a good thing, but it makes it harder for me to know where my little brother is coming from, because I can't just slap an easy label on it...
cite>Talk to your brother and more importantly, listen to him to find out what he is passionate about. If building the relationship with him is important, PLEASE do not approach with an air of musical superiority, even if he's listening to the Hannah Montana soundtrack.
I can't, I'm too busy imposing MY opinion on him! Haha, okay, point taken.