N3DS browser

  Anyone know how the browser detects 3D content?  It puts up that blue box on the bottom screen and auto-switches from SBS content to 3D mode with some trailers from the "3D clips and trailers" channel on youtube.  Even when I copy the files down and host them myself, it does this.  I haven't created any SBS videos myself that do this - I always have to switch it myself.

Harry

After a lot of surfing, I found out how to do it here: https://forum.videohelp.com/threads/376306-marker-3d-on-video-file Just run the x264 program on the .mp4 file and it is now recognized by the N3DS as a 3D movie and shown in 3D automatically.