Special medium that I couldn't live without: the book. I don't think paper books could ever be replaced to my satisfaction. They may yet invent some digital book, and it may someday catch on, but I doubt it would ever appeal to me.

I don't mind digital recordings so much, but I do love the vinyl LP. I have this poster over my bed to remind me of them: http://www.streamlined-prints.com/images/m0002.jpg. There was something perfectly grand about sliding the delicate LP from its cover, placing it on the turntable, and placing the needle on the disc. And the sleeves were large enough that they could serve as substantial media for interesting graphic art, or lengthy, informative liner notes, or both.

On the other hand, I can play CD's in my car!