This is how to convert the videos your 3ds takes to a format youtube can understand. A batch file to follow in a later post. you will need FFmpeg.exe. You can get that here: 32-bit: http://ffmpeg.zerano...s/win32/static/ 64-bit: http://ffmpeg.zerano...s/win64/static/ Extract the 7zip file , and the exe is in the bin directory. Place your video file from your 3ds in this same directory and rename it clip.avi Now here are the FFmpeg commands: ffmpeg -i clip.avi -map 0:0 -map 0:1 -vcodec rawvideo -s 240x240 -vf pad=480:240:0:0:violet left.avi ffmpeg -i clip.avi -map 0:2 -map 0:1 -vcodec rawvideo -s 240x240 right.avi ffmpeg -i "left.avi" -vf "movie=right.avi [ovl]; [in][ovl] overlay=240:0 [out]" -q 1 done.avi This will output 3 files left.avi , right.avi , and done.avi You can delete left.avi and right.avi. done.avi is the file you will upload to youtube. Once the upload is complete: Log into your YouTube account Go to your video once it's been uploaded Click on Edit Info above the video Select 3D Video on the right hand side of the banner Choose Side by side: Left video on the left side Thats it, now your video is on youtube in 3d format.