"Emulator Icon" appears on console?

I noticed in my No WW run I did on n64 had the "Emulator Icon" from the time I entered Lost Woods to the time I entered Kakariko Village. The icon I'm referring to is the blue thing that almost resembles a door in the top left of the screen. This icon always seems to be there on emulator, so I'm wondering why it's there on n64. Is this always there in these locations and just not normally visible due to the way crt's display the video?

The video that has this icon: http://youtu.be/7_VYFXW-nMk?t=4m52s

CRTs do not display the whole image they receive. Part of the image falls outside the visible region. This is called overscan. I think your capture card does not do any overscan so the blue box is visible.

The blue box is bigger on emulator, so I suppose that the N64 already crops a part of the rendered image when sending it to the TV.

I have no clue what the meaning of the blue box is.  :D

Interesting. I'm sure there's a way to enable over scanning, right? Or just crop it a bit? I don't think it's a big deal, but it does bother me lol

Err, you can definitely crop your input source in OBS. Not sure if there are any other options.

I suppose it makes sense that the whole image is captured. Nintendo mainly seems to have done a bad job leaving stuff like this. Take a look at 5:18 for instance. When the screen fades out, the corners are not white, they actually have color changing. It does not look like it is supposed to at all.

This "emu icon" is the entrance icon used for stuff like when you enter the Well, it gets marked on the Kak map, same with Shadow Temple after Nocturne.

The game just stores the icon at coords 0,0 hidden by the overscan of TV's. There's not normally a way to turn overscan off (at least back in 1998 afaik) so it wasn't that big of a problem back then. Some games actually had hidden messages from programmers hidden in overscan areas!

It also explains why you can see the corners, they normally get hidden by overscan too.