I had gotten this about a month ago in some slowboat stuff but someone else on another forum wanted to see what I was talking about so I put something together. Figured I would share here too:
Sega Mega Drive Notebook by xelement5x, on Flickr
This is a little Sega Mega Drive Notebook that I picked up with a bundle of stuff from Japan. The copy of Langrisser is in there just to give a feeling of the size.
It's softbound style and all the pages have that MD outline on them like you can see in the lower part of the image. It's a neat little thing, only cost me a couple bucks when I found it.